From c53812dff5a77acccbbe15ea043c4fa935aeac1d Mon Sep 17 00:00:00 2001
From: Aku-mi <bestor911@gmail.com>
Date: Mon, 22 Nov 2021 14:29:33 -0500
Subject: [PATCH 1/3] Contracts updated

Contracts and truffle tests were updated.
Also some configuration was made.
---
 cattleia-backend/.env.example                 |   3 +-
 cattleia-backend/.gitignore                   |   3 +-
 cattleia-backend/package.json                 |   2 +
 .../src/contracts/CattleiaERC20.sol           |  15 +
 .../src/contracts/CattleiaERC721.sol          |  32 +
 .../src/contracts/CattleiaToken.sol           |  71 --
 cattleia-backend/src/contracts/Migrations.sol |   2 +-
 .../src/migrations/2_ERC20_migration.js       |   8 +
 .../src/migrations/2_deploy_cattleia_token.js |   5 -
 .../src/migrations/3_ERC721_migration.js      |   9 +
 .../src/test/truffle/CattleiaERC20.js         |  33 +
 .../src/test/truffle/CattleiaERC721.js        |  42 +
 .../src/test/truffle/CattleiaToken.js         |  15 -
 cattleia-backend/truffle-config.js            |  81 +-
 cattleia-backend/types.d.ts                   |   1 +
 cattleia-backend/yarn.lock                    | 832 +++++++++++++++++-
 16 files changed, 970 insertions(+), 184 deletions(-)
 create mode 100644 cattleia-backend/src/contracts/CattleiaERC20.sol
 create mode 100644 cattleia-backend/src/contracts/CattleiaERC721.sol
 delete mode 100644 cattleia-backend/src/contracts/CattleiaToken.sol
 create mode 100644 cattleia-backend/src/migrations/2_ERC20_migration.js
 delete mode 100644 cattleia-backend/src/migrations/2_deploy_cattleia_token.js
 create mode 100644 cattleia-backend/src/migrations/3_ERC721_migration.js
 create mode 100644 cattleia-backend/src/test/truffle/CattleiaERC20.js
 create mode 100644 cattleia-backend/src/test/truffle/CattleiaERC721.js
 delete mode 100644 cattleia-backend/src/test/truffle/CattleiaToken.js

diff --git a/cattleia-backend/.env.example b/cattleia-backend/.env.example
index ef4f2f2..d119ad0 100644
--- a/cattleia-backend/.env.example
+++ b/cattleia-backend/.env.example
@@ -10,4 +10,5 @@ INFURA_RINKEBY=
 GANACHE=
 STRIPE_SECRET=
 STRIPE_PUBLISHABLE=
-TEST_PRIVATE_KEY=
\ No newline at end of file
+TEST_PRIVATE_KEY=
+TRUFFLE_KEY=
\ No newline at end of file
diff --git a/cattleia-backend/.gitignore b/cattleia-backend/.gitignore
index acc745d..a9f83ee 100644
--- a/cattleia-backend/.gitignore
+++ b/cattleia-backend/.gitignore
@@ -1,6 +1,7 @@
 node_modules/
 coverage/
 dist/
+src/abis/**.json
 junit.xml
 .env
-.secret
+.secret
\ No newline at end of file
diff --git a/cattleia-backend/package.json b/cattleia-backend/package.json
index bf7824a..c3beab8 100644
--- a/cattleia-backend/package.json
+++ b/cattleia-backend/package.json
@@ -47,6 +47,8 @@
     "wsreq": "^1.1.2"
   },
   "dependencies": {
+    "@openzeppelin/contracts": "^4.3.3",
+    "@truffle/hdwallet-provider": "^1.7.0",
     "argon2": "^0.28.2",
     "axios": "^0.24.0",
     "cookie-parser": "^1.4.5",
diff --git a/cattleia-backend/src/contracts/CattleiaERC20.sol b/cattleia-backend/src/contracts/CattleiaERC20.sol
new file mode 100644
index 0000000..33e47fd
--- /dev/null
+++ b/cattleia-backend/src/contracts/CattleiaERC20.sol
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.3;
+
+import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
+
+contract CattleiaERC20 is ERC20 {
+    constructor(
+        string memory name_,
+        string memory symbol_,
+        uint256 supply_
+    ) ERC20(name_, symbol_) {
+        _mint(address(this), supply_);
+        _transfer(address(this), msg.sender, uint256((supply_ * 10) / 100));
+    }
+}
diff --git a/cattleia-backend/src/contracts/CattleiaERC721.sol b/cattleia-backend/src/contracts/CattleiaERC721.sol
new file mode 100644
index 0000000..f2c2698
--- /dev/null
+++ b/cattleia-backend/src/contracts/CattleiaERC721.sol
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.3;
+
+import "@openzeppelin/contracts/token/ERC721/presets/ERC721PresetMinterPauserAutoId.sol";
+
+contract CattleiaERC721 is ERC721PresetMinterPauserAutoId {
+    string private _baseUri;
+
+    event BaseURIChanged(string _old, string _new);
+
+    constructor(
+        string memory name_,
+        string memory symbol_,
+        string memory baseURI_
+    ) ERC721PresetMinterPauserAutoId(name_, symbol_, baseURI_) {
+        _baseUri = baseURI_;
+    }
+
+    function changeBaseURI(string memory _newURI) public {
+        require(hasRole(DEFAULT_ADMIN_ROLE, msg.sender));
+        emit BaseURIChanged(_baseUri, _newURI);
+        _baseUri = _newURI;
+    }
+
+    function baseURI() public view returns (string memory) {
+        return _baseURI();
+    }
+
+    function _baseURI() internal view virtual override returns (string memory) {
+        return _baseUri;
+    }
+}
diff --git a/cattleia-backend/src/contracts/CattleiaToken.sol b/cattleia-backend/src/contracts/CattleiaToken.sol
deleted file mode 100644
index 5b77b42..0000000
--- a/cattleia-backend/src/contracts/CattleiaToken.sol
+++ /dev/null
@@ -1,71 +0,0 @@
-// SPDX-License-Identifier: MIT
-pragma solidity ^0.5.0;
-
-// import "@openzeppelin/contracts/token/ERC20/";
-
-contract CattleiaToken {
-    string public name;
-    string public symbol;
-    uint8 public decimals;
-    uint256 public totalSupply;
-
-    mapping(address => uint256) public balanceOf;
-    mapping(address => mapping(address => uint256)) allowanceMap;
-
-    event Transfer(address indexed _from, address indexed _to, uint256 _value);
-    event Approval(
-        address indexed _owner,
-        address indexed _spender,
-        uint256 _value
-    );
-
-    constructor(string memory _name, string memory _symbol) public {
-        name = _name;
-        symbol = _symbol;
-        decimals = 18;
-        totalSupply = 1000000 * (uint256(10)**decimals);
-        balanceOf[msg.sender] = totalSupply;
-    }
-
-    function transfer(address _to, uint256 _value)
-        public
-        returns (bool success)
-    {
-        require(balanceOf[msg.sender] >= _value);
-        balanceOf[msg.sender] -= _value;
-        balanceOf[_to] += _value;
-        emit Transfer(msg.sender, _to, _value);
-        return true;
-    }
-
-    function allowance(address _from, address _to)
-        public
-        view
-        returns (uint256)
-    {
-        return allowanceMap[_from][_to];
-    }
-
-    function aprove(address _spender, uint256 _value)
-        public
-        returns (bool success)
-    {
-        allowanceMap[msg.sender][_spender] = _value;
-        emit Approval(msg.sender, _spender, _value);
-        return true;
-    }
-
-    function transferFrom(
-        address _from,
-        address _to,
-        uint256 _value
-    ) public returns (bool success) {
-        require(balanceOf[_from] >= _value);
-        require(allowanceMap[_from][msg.sender] >= _value);
-        balanceOf[_from] -= _value;
-        balanceOf[_to] += _value;
-        allowanceMap[_from][msg.sender] -= _value;
-        emit Transfer(_from, _to, _value);
-        return true;
-    }
-}
diff --git a/cattleia-backend/src/contracts/Migrations.sol b/cattleia-backend/src/contracts/Migrations.sol
index 026b0dd..b6aec47 100644
--- a/cattleia-backend/src/contracts/Migrations.sol
+++ b/cattleia-backend/src/contracts/Migrations.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.5.0;
+pragma solidity ^0.8.3;
 
 contract Migrations {
     address public owner = msg.sender;
diff --git a/cattleia-backend/src/migrations/2_ERC20_migration.js b/cattleia-backend/src/migrations/2_ERC20_migration.js
new file mode 100644
index 0000000..0861fb2
--- /dev/null
+++ b/cattleia-backend/src/migrations/2_ERC20_migration.js
@@ -0,0 +1,8 @@
+const CattleiaERC20 = artifacts.require("CattleiaERC20");
+
+const name = "CattleiaToken";
+const symbol = "CTT";
+const supply = 100000000;
+module.exports = function (deployer) {
+  deployer.deploy(CattleiaERC20, name, symbol, supply);
+};
diff --git a/cattleia-backend/src/migrations/2_deploy_cattleia_token.js b/cattleia-backend/src/migrations/2_deploy_cattleia_token.js
deleted file mode 100644
index 69b66e9..0000000
--- a/cattleia-backend/src/migrations/2_deploy_cattleia_token.js
+++ /dev/null
@@ -1,5 +0,0 @@
-const CattleiaToken = artifacts.require("CattleiaToken");
-
-module.exports = function (deployer) {
-  deployer.deploy(CattleiaToken);
-};
diff --git a/cattleia-backend/src/migrations/3_ERC721_migration.js b/cattleia-backend/src/migrations/3_ERC721_migration.js
new file mode 100644
index 0000000..ed20290
--- /dev/null
+++ b/cattleia-backend/src/migrations/3_ERC721_migration.js
@@ -0,0 +1,9 @@
+const CattleiaERC721 = artifacts.require("CattleiaERC721");
+
+const name = "Cattleia";
+const symbol = "CTN";
+const baseURI = "https://api.aku-mi.xyz/api/v1/nft/metadata/";
+
+module.exports = function (deployer) {
+  deployer.deploy(CattleiaERC721, name, symbol, baseURI);
+};
diff --git a/cattleia-backend/src/test/truffle/CattleiaERC20.js b/cattleia-backend/src/test/truffle/CattleiaERC20.js
new file mode 100644
index 0000000..ce548bc
--- /dev/null
+++ b/cattleia-backend/src/test/truffle/CattleiaERC20.js
@@ -0,0 +1,33 @@
+const CattleiaERC20 = artifacts.require("CattleiaERC20");
+
+contract("CattleiaERC20", (accounts) => {
+  before(async () => {
+    this.CattleiaERC20 = await CattleiaERC20.deployed();
+  });
+
+  it("should migrate successfully", async () => {
+    const address = this.CattleiaERC20.address;
+    assert.notEqual(address, null);
+    assert.notEqual(address, undefined);
+    assert.notEqual(address, 0x0);
+    assert.notEqual(address, "");
+  });
+
+  it("should have 90% supply in contract and 10% in owner", async () => {
+    const supply = 100000000;
+    const balance1 = (
+      await this.CattleiaERC20.balanceOf(this.CattleiaERC20.address)
+    ).toString();
+    const balance2 = (
+      await this.CattleiaERC20.balanceOf(accounts[0])
+    ).toString();
+    assert.equal(balance1, (supply * 0.9).toString());
+    assert.equal(balance2, (supply * 0.1).toString());
+  });
+
+  it("should be able to transfer tokens", async () => {
+    await this.CattleiaERC20.transfer(accounts[1], 100);
+    const balance = await this.CattleiaERC20.balanceOf(accounts[1]);
+    assert.equal(balance, "100");
+  });
+});
diff --git a/cattleia-backend/src/test/truffle/CattleiaERC721.js b/cattleia-backend/src/test/truffle/CattleiaERC721.js
new file mode 100644
index 0000000..e98dfcb
--- /dev/null
+++ b/cattleia-backend/src/test/truffle/CattleiaERC721.js
@@ -0,0 +1,42 @@
+const CattleiaERC721 = artifacts.require("CattleiaERC721");
+
+contract("CattleiaERC721", (accounts) => {
+  before(async () => {
+    this.CattleiaERC721 = await CattleiaERC721.deployed();
+  });
+
+  it("should migrate successfully", async () => {
+    const address = this.CattleiaERC721.address;
+    assert.notEqual(address, null);
+    assert.notEqual(address, undefined);
+    assert.notEqual(address, 0x0);
+    assert.notEqual(address, "");
+  });
+
+  it("should be able to mint", async () => {
+    await this.CattleiaERC721.mint(accounts[0]);
+    const balance = (
+      await this.CattleiaERC721.balanceOf(accounts[0])
+    ).toString();
+    assert.equal(balance, "1");
+  });
+
+  it("should be able to change the base uri", async () => {
+    const newUri = "http://some-uri.com/";
+    await this.CattleiaERC721.changeBaseURI(newUri);
+    const uri = await this.CattleiaERC721.baseURI();
+    assert.equal(uri, newUri);
+  });
+
+  it("should be able to transfer", async () => {
+    await this.CattleiaERC721.transferFrom(accounts[0], accounts[1], 0);
+    const balance1 = (
+      await this.CattleiaERC721.balanceOf(accounts[0])
+    ).toString();
+    const balance2 = (
+      await this.CattleiaERC721.balanceOf(accounts[1])
+    ).toString();
+    assert.equal(balance1, "0");
+    assert.equal(balance2, "1");
+  });
+});
diff --git a/cattleia-backend/src/test/truffle/CattleiaToken.js b/cattleia-backend/src/test/truffle/CattleiaToken.js
deleted file mode 100644
index 67d189d..0000000
--- a/cattleia-backend/src/test/truffle/CattleiaToken.js
+++ /dev/null
@@ -1,15 +0,0 @@
-const CattleiaToken = artifacts.require("CattleiaToken");
-
-contract("CattleiaToken", async () => {
-  before(async () => {
-    this.cattleiaToken = await CattleiaToken.deployed();
-  });
-
-  it("migration successfull", async () => {
-    const address = this.cattleiaToken.address;
-    assert.notEqual(address, null);
-    assert.notEqual(address, undefined);
-    assert.notEqual(address, 0x0);
-    assert.notEqual(address, "");
-  });
-});
diff --git a/cattleia-backend/truffle-config.js b/cattleia-backend/truffle-config.js
index 68382f7..9ab2fc8 100644
--- a/cattleia-backend/truffle-config.js
+++ b/cattleia-backend/truffle-config.js
@@ -1,49 +1,13 @@
-/**
- * Use this file to configure your truffle project. It's seeded with some
- * common settings for different networks and features like migrations,
- * compilation and testing. Uncomment the ones you need or modify
- * them to suit your project as necessary.
- *
- * More information about configuration can be found at:
- *
- * trufflesuite.com/docs/advanced/configuration
- *
- * To deploy via Infura you'll need a wallet provider (like @truffle/hdwallet-provider)
- * to sign your transactions before they're sent to a remote public node. Infura accounts
- * are available for free at: infura.io/register.
- *
- * You'll also need a mnemonic - the twelve word phrase the wallet uses to generate
- * public/private key pairs. If you're publishing your code to GitHub make sure you load this
- * phrase from a file you've .gitignored so it doesn't accidentally become public.
- *
- */
-
-// const HDWalletProvider = require('@truffle/hdwallet-provider');
-//
-// const fs = require('fs');
-// const mnemonic = fs.readFileSync(".secret").toString().trim();
+// require("dotenv").config();
+// const HDWalletProvider = require("@truffle/hdwallet-provider");
+// const mnemonic = process.env.TRUFFLE_KEY.trim();
 
 module.exports = {
-  /**
-   * Networks define how you connect to your ethereum client and let you set the
-   * defaults web3 uses to send transactions. If you don't specify one truffle
-   * will spin up a development blockchain for you on port 9545 when you
-   * run `develop` or `test`. You can ask a truffle command to use a specific
-   * network from the command line, e.g
-   *
-   * $ truffle test --network <network-name>
-   */
   contracts_directory: "./src/contracts",
   contracts_build_directory: "./src/abis",
   migrations_directory: "./src/migrations",
   test_directory: "./src/test/truffle",
   networks: {
-    // Useful for testing. The `development` name is special - truffle uses it by default
-    // if it's defined here and no other network is specified at the command line.
-    // You should run a client (like ganache-cli, geth or parity) in a separate terminal
-    // tab if you use this network and you must also set the `host`, `port` and `network_id`
-    // options below to some value.
-    //
     development: {
       host: "127.0.0.1", // Localhost (default: none)
       port: 7545, // Standard Ethereum port (default: none)
@@ -84,36 +48,15 @@ module.exports = {
   // Configure your compilers
   compilers: {
     solc: {
-      version: "0.5.0", // Fetch exact version from solc-bin (default: truffle's version)
-      // docker: true,        // Use "0.5.1" you've installed locally with docker (default: false)
-      // settings: {          // See the solidity docs for advice about optimization and evmVersion
-      //  optimizer: {
-      //    enabled: false,
-      //    runs: 200
-      //  },
-      //  evmVersion: "byzantium"
-      // }
+      version: "0.8.3", // Fetch exact version from solc-bin (default: truffle's version)
+      settings: {
+        // See the solidity docs for advice about optimization and evmVersion
+        optimizer: {
+          enabled: false,
+          runs: 200,
+        },
+        // evmVersion: "byzantium"
+      },
     },
   },
-
-  // Truffle DB is currently disabled by default; to enable it, change enabled:
-  // false to enabled: true. The default storage location can also be
-  // overridden by specifying the adapter settings, as shown in the commented code below.
-  //
-  // NOTE: It is not possible to migrate your contracts to truffle DB and you should
-  // make a backup of your artifacts to a safe location before enabling this feature.
-  //
-  // After you backed up your artifacts you can utilize db by running migrate as follows:
-  // $ truffle migrate --reset --compile-all
-  //
-  // db: {
-  // enabled: false,
-  // host: "127.0.0.1",
-  // adapter: {
-  //   name: "sqlite",
-  //   settings: {
-  //     directory: ".db"
-  //   }
-  // }
-  // }
 };
diff --git a/cattleia-backend/types.d.ts b/cattleia-backend/types.d.ts
index 9f8f4ff..e46d28f 100644
--- a/cattleia-backend/types.d.ts
+++ b/cattleia-backend/types.d.ts
@@ -22,6 +22,7 @@ declare namespace NodeJS {
     STRIPE_PUBLISHABLE: string;
     NODE_ENV: "production" | "development" | "test";
     TEST_PRIVATE_KEY: string;
+    TRUFFLE_KEY: string;
   }
 }
 
diff --git a/cattleia-backend/yarn.lock b/cattleia-backend/yarn.lock
index 9d9d6b8..88d1006 100644
--- a/cattleia-backend/yarn.lock
+++ b/cattleia-backend/yarn.lock
@@ -9,6 +9,11 @@
   dependencies:
     "@babel/highlight" "^7.16.0"
 
+"@babel/compat-data@^7.13.11":
+  version "7.16.4"
+  resolved "https://registry.yarnpkg.com/@babel/compat-data/-/compat-data-7.16.4.tgz#081d6bbc336ec5c2435c6346b2ae1fb98b5ac68e"
+  integrity sha512-1o/jo7D+kC9ZjHX5v+EHrdjl3PhxMrLSOTGsOdHJ+KL8HCaEK6ehrVL2RS6oHDZp+L7xLirLrPmQtEng769J/Q==
+
 "@babel/compat-data@^7.16.0":
   version "7.16.0"
   resolved "https://registry.yarnpkg.com/@babel/compat-data/-/compat-data-7.16.0.tgz#ea269d7f78deb3a7826c39a4048eecda541ebdaa"
@@ -44,7 +49,7 @@
     jsesc "^2.5.1"
     source-map "^0.5.0"
 
-"@babel/helper-compilation-targets@^7.16.0":
+"@babel/helper-compilation-targets@^7.13.0", "@babel/helper-compilation-targets@^7.16.0":
   version "7.16.3"
   resolved "https://registry.yarnpkg.com/@babel/helper-compilation-targets/-/helper-compilation-targets-7.16.3.tgz#5b480cd13f68363df6ec4dc8ac8e2da11363cbf0"
   integrity sha512-vKsoSQAyBmxS35JUOOt+07cLc6Nk/2ljLIHwmq2/NM6hdioUaqEXq/S+nXvbvXbZkNDlWOymPanJGOc4CBjSJA==
@@ -54,6 +59,20 @@
     browserslist "^4.17.5"
     semver "^6.3.0"
 
+"@babel/helper-define-polyfill-provider@^0.3.0":
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/@babel/helper-define-polyfill-provider/-/helper-define-polyfill-provider-0.3.0.tgz#c5b10cf4b324ff840140bb07e05b8564af2ae971"
+  integrity sha512-7hfT8lUljl/tM3h+izTX/pO3W3frz2ok6Pk+gzys8iJqDfZrZy2pXjRTZAvG2YmfHun1X4q8/UZRLatMfqc5Tg==
+  dependencies:
+    "@babel/helper-compilation-targets" "^7.13.0"
+    "@babel/helper-module-imports" "^7.12.13"
+    "@babel/helper-plugin-utils" "^7.13.0"
+    "@babel/traverse" "^7.13.0"
+    debug "^4.1.1"
+    lodash.debounce "^4.0.8"
+    resolve "^1.14.2"
+    semver "^6.1.2"
+
 "@babel/helper-function-name@^7.16.0":
   version "7.16.0"
   resolved "https://registry.yarnpkg.com/@babel/helper-function-name/-/helper-function-name-7.16.0.tgz#b7dd0797d00bbfee4f07e9c4ea5b0e30c8bb1481"
@@ -84,7 +103,7 @@
   dependencies:
     "@babel/types" "^7.16.0"
 
-"@babel/helper-module-imports@^7.16.0":
+"@babel/helper-module-imports@^7.12.13", "@babel/helper-module-imports@^7.16.0":
   version "7.16.0"
   resolved "https://registry.yarnpkg.com/@babel/helper-module-imports/-/helper-module-imports-7.16.0.tgz#90538e60b672ecf1b448f5f4f5433d37e79a3ec3"
   integrity sha512-kkH7sWzKPq0xt3H1n+ghb4xEMP8k0U7XV3kkB+ZGy69kDk2ySFW1qPi06sjKzFY3t1j6XbJSqr4mF9L7CYVyhg==
@@ -112,7 +131,7 @@
   dependencies:
     "@babel/types" "^7.16.0"
 
-"@babel/helper-plugin-utils@^7.0.0", "@babel/helper-plugin-utils@^7.10.4", "@babel/helper-plugin-utils@^7.12.13", "@babel/helper-plugin-utils@^7.14.5", "@babel/helper-plugin-utils@^7.8.0":
+"@babel/helper-plugin-utils@^7.0.0", "@babel/helper-plugin-utils@^7.10.4", "@babel/helper-plugin-utils@^7.12.13", "@babel/helper-plugin-utils@^7.13.0", "@babel/helper-plugin-utils@^7.14.5", "@babel/helper-plugin-utils@^7.8.0":
   version "7.14.5"
   resolved "https://registry.yarnpkg.com/@babel/helper-plugin-utils/-/helper-plugin-utils-7.14.5.tgz#5ac822ce97eec46741ab70a517971e443a70c5a9"
   integrity sha512-/37qQCE3K0vvZKwoK4XU/irIJQdIfCJuhU5eKnNxpFDsOkgFaUAwbv+RYw6eYgsC0E4hS7r5KqGULUogqui0fQ==
@@ -265,6 +284,25 @@
   dependencies:
     "@babel/helper-plugin-utils" "^7.14.5"
 
+"@babel/plugin-transform-runtime@^7.5.5":
+  version "7.16.4"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-runtime/-/plugin-transform-runtime-7.16.4.tgz#f9ba3c7034d429c581e1bd41b4952f3db3c2c7e8"
+  integrity sha512-pru6+yHANMTukMtEZGC4fs7XPwg35v8sj5CIEmE+gEkFljFiVJxEWxx/7ZDkTK+iZRYo1bFXBtfIN95+K3cJ5A==
+  dependencies:
+    "@babel/helper-module-imports" "^7.16.0"
+    "@babel/helper-plugin-utils" "^7.14.5"
+    babel-plugin-polyfill-corejs2 "^0.3.0"
+    babel-plugin-polyfill-corejs3 "^0.4.0"
+    babel-plugin-polyfill-regenerator "^0.3.0"
+    semver "^6.3.0"
+
+"@babel/runtime@^7.5.5":
+  version "7.16.3"
+  resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.16.3.tgz#b86f0db02a04187a3c17caa77de69840165d42d5"
+  integrity sha512-WBwekcqacdY2e9AF/Q7WLFUWmdJGJTkbjqTjoMDgXkVZ3ZRUvOPsLb5KdwISoQVsbP+DQzVZW4Zhci0DvpbNTQ==
+  dependencies:
+    regenerator-runtime "^0.13.4"
+
 "@babel/template@^7.16.0", "@babel/template@^7.3.3":
   version "7.16.0"
   resolved "https://registry.yarnpkg.com/@babel/template/-/template-7.16.0.tgz#d16a35ebf4cd74e202083356fab21dd89363ddd6"
@@ -274,7 +312,7 @@
     "@babel/parser" "^7.16.0"
     "@babel/types" "^7.16.0"
 
-"@babel/traverse@^7.1.0", "@babel/traverse@^7.16.0", "@babel/traverse@^7.16.3", "@babel/traverse@^7.7.2":
+"@babel/traverse@^7.1.0", "@babel/traverse@^7.13.0", "@babel/traverse@^7.16.0", "@babel/traverse@^7.16.3", "@babel/traverse@^7.7.2":
   version "7.16.3"
   resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.16.3.tgz#f63e8a938cc1b780f66d9ed3c54f532ca2d14787"
   integrity sha512-eolumr1vVMjqevCpwVO99yN/LoGL0EyHiLO5I043aYQvwOJ9eR5UsZSClHVCzfhBduMAsSzgA/6AyqPjNayJag==
@@ -310,6 +348,14 @@
     crc-32 "^1.2.0"
     ethereumjs-util "^7.1.0"
 
+"@ethereumjs/common@^2.6.0":
+  version "2.6.0"
+  resolved "https://registry.yarnpkg.com/@ethereumjs/common/-/common-2.6.0.tgz#feb96fb154da41ee2cc2c5df667621a440f36348"
+  integrity sha512-Cq2qS0FTu6O2VU1sgg+WyU9Ps0M6j/BEMHN+hRaECXCV/r0aI78u4N6p52QW/BDVhwWZpCdrvG8X7NJdzlpNUA==
+  dependencies:
+    crc-32 "^1.2.0"
+    ethereumjs-util "^7.1.3"
+
 "@ethereumjs/tx@^3.2.1":
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/@ethereumjs/tx/-/tx-3.3.0.tgz#14ed1b7fa0f28e1cd61e3ecbdab824205f6a4378"
@@ -318,6 +364,14 @@
     "@ethereumjs/common" "^2.4.0"
     ethereumjs-util "^7.1.0"
 
+"@ethereumjs/tx@^3.3.0":
+  version "3.4.0"
+  resolved "https://registry.yarnpkg.com/@ethereumjs/tx/-/tx-3.4.0.tgz#7eb1947eefa55eb9cf05b3ca116fb7a3dbd0bce7"
+  integrity sha512-WWUwg1PdjHKZZxPPo274ZuPsJCWV3SqATrEKQP1n2DrVYVP1aZIYpo/mFaA0BDoE0tIQmBeimRCEA0Lgil+yYw==
+  dependencies:
+    "@ethereumjs/common" "^2.6.0"
+    ethereumjs-util "^7.1.3"
+
 "@ethersproject/abi@5.0.7":
   version "5.0.7"
   resolved "https://registry.yarnpkg.com/@ethersproject/abi/-/abi-5.0.7.tgz#79e52452bd3ca2956d0e1c964207a58ad1a0ee7b"
@@ -694,6 +748,11 @@
     semver "^7.3.4"
     tar "^6.1.0"
 
+"@openzeppelin/contracts@^4.3.3":
+  version "4.3.3"
+  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.3.3.tgz#ff6ee919fc2a1abaf72b22814bfb72ed129ec137"
+  integrity sha512-tDBopO1c98Yk7Cv/PZlHqrvtVjlgK5R4J6jxLwoO7qxK4xqOiZG+zSkIvGFpPZ0ikc3QOED3plgdqjgNTnBc7g==
+
 "@phc/format@^1.0.0":
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/@phc/format/-/format-1.0.0.tgz#b5627003b3216dc4362125b13f48a4daa76680e4"
@@ -735,6 +794,98 @@
   resolved "https://registry.yarnpkg.com/@tootallnate/once/-/once-1.1.2.tgz#ccb91445360179a04e7fe6aff78c00ffc1eeaf82"
   integrity sha512-RbzJvlNzmRq5c3O09UipeuXno4tA1FE6ikOjxZK0tuxVv3412l64l5t1W5pj4+rJq9vpkm/kwiR07aZXnsKPxw==
 
+"@truffle/hdwallet-provider@^1.7.0":
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/@truffle/hdwallet-provider/-/hdwallet-provider-1.7.0.tgz#5cfa8bc67c2a30b3943d3dab78f74c6a191cde02"
+  integrity sha512-nT7BPJJ2jPCLJc5uZdVtRnRMny5he5d3kO9Hi80ZSqe5xlnK905grBptM/+CwOfbeqHKQirI1btwm6r3wIBM8A==
+  dependencies:
+    "@ethereumjs/common" "^2.4.0"
+    "@ethereumjs/tx" "^3.3.0"
+    "@trufflesuite/web3-provider-engine" "15.0.14"
+    eth-sig-util "^3.0.1"
+    ethereum-cryptography "^0.1.3"
+    ethereum-protocol "^1.0.1"
+    ethereumjs-util "^6.1.0"
+    ethereumjs-wallet "^1.0.1"
+
+"@trufflesuite/eth-json-rpc-filters@^4.1.2-1":
+  version "4.1.2-1"
+  resolved "https://registry.yarnpkg.com/@trufflesuite/eth-json-rpc-filters/-/eth-json-rpc-filters-4.1.2-1.tgz#61ab78c52e98a883e5cf086925b34a30297b1824"
+  integrity sha512-/MChvC5dw2ck9NU1cZmdovCz2VKbOeIyR4tcxDvA5sT+NaL0rA2/R5U0yI7zsbo1zD+pgqav77rQHTzpUdDNJQ==
+  dependencies:
+    "@trufflesuite/eth-json-rpc-middleware" "^4.4.2-0"
+    await-semaphore "^0.1.3"
+    eth-query "^2.1.2"
+    json-rpc-engine "^5.1.3"
+    lodash.flatmap "^4.5.0"
+    safe-event-emitter "^1.0.1"
+
+"@trufflesuite/eth-json-rpc-infura@^4.0.3-0":
+  version "4.0.3-0"
+  resolved "https://registry.yarnpkg.com/@trufflesuite/eth-json-rpc-infura/-/eth-json-rpc-infura-4.0.3-0.tgz#6d22122937cf60ec9d21a02351c101fdc608c4fe"
+  integrity sha512-xaUanOmo0YLqRsL0SfXpFienhdw5bpQ1WEXxMTRi57az4lwpZBv4tFUDvcerdwJrxX9wQqNmgUgd1BrR01dumw==
+  dependencies:
+    "@trufflesuite/eth-json-rpc-middleware" "^4.4.2-1"
+    cross-fetch "^2.1.1"
+    eth-json-rpc-errors "^1.0.1"
+    json-rpc-engine "^5.1.3"
+
+"@trufflesuite/eth-json-rpc-middleware@^4.4.2-0", "@trufflesuite/eth-json-rpc-middleware@^4.4.2-1":
+  version "4.4.2-1"
+  resolved "https://registry.yarnpkg.com/@trufflesuite/eth-json-rpc-middleware/-/eth-json-rpc-middleware-4.4.2-1.tgz#8c3638ed8a7ed89a1e5e71407de068a65bef0df2"
+  integrity sha512-iEy9H8ja7/8aYES5HfrepGBKU9n/Y4OabBJEklVd/zIBlhCCBAWBqkIZgXt11nBXO/rYAeKwYuE3puH3ByYnLA==
+  dependencies:
+    "@trufflesuite/eth-sig-util" "^1.4.2"
+    btoa "^1.2.1"
+    clone "^2.1.1"
+    eth-json-rpc-errors "^1.0.1"
+    eth-query "^2.1.2"
+    ethereumjs-block "^1.6.0"
+    ethereumjs-tx "^1.3.7"
+    ethereumjs-util "^5.1.2"
+    ethereumjs-vm "^2.6.0"
+    fetch-ponyfill "^4.0.0"
+    json-rpc-engine "^5.1.3"
+    json-stable-stringify "^1.0.1"
+    pify "^3.0.0"
+    safe-event-emitter "^1.0.1"
+
+"@trufflesuite/eth-sig-util@^1.4.2":
+  version "1.4.2"
+  resolved "https://registry.yarnpkg.com/@trufflesuite/eth-sig-util/-/eth-sig-util-1.4.2.tgz#b529e2f38ac08e652116f48981132a26242a4f08"
+  integrity sha512-+GyfN6b0LNW77hbQlH3ufZ/1eCON7mMrGym6tdYf7xiNw9Vv3jBO72bmmos1EId2NgBvPMhmYYm6DSLQFTmzrA==
+  dependencies:
+    ethereumjs-abi "^0.6.8"
+    ethereumjs-util "^5.1.1"
+
+"@trufflesuite/web3-provider-engine@15.0.14":
+  version "15.0.14"
+  resolved "https://registry.yarnpkg.com/@trufflesuite/web3-provider-engine/-/web3-provider-engine-15.0.14.tgz#8f9696f434585cc0ab2e57c312090c1f138bc471"
+  integrity sha512-6/LoWvNMxYf0oaYzJldK2a9AdnkAdIeJhHW4nuUBAeO29eK9xezEaEYQ0ph1QRTaICxGxvn+1Azp4u8bQ8NEZw==
+  dependencies:
+    "@ethereumjs/tx" "^3.3.0"
+    "@trufflesuite/eth-json-rpc-filters" "^4.1.2-1"
+    "@trufflesuite/eth-json-rpc-infura" "^4.0.3-0"
+    "@trufflesuite/eth-json-rpc-middleware" "^4.4.2-1"
+    "@trufflesuite/eth-sig-util" "^1.4.2"
+    async "^2.5.0"
+    backoff "^2.5.0"
+    clone "^2.0.0"
+    cross-fetch "^2.1.0"
+    eth-block-tracker "^4.4.2"
+    eth-json-rpc-errors "^2.0.2"
+    ethereumjs-block "^1.2.2"
+    ethereumjs-util "^5.1.5"
+    ethereumjs-vm "^2.3.4"
+    json-stable-stringify "^1.0.1"
+    promise-to-callback "^1.0.0"
+    readable-stream "^2.2.9"
+    request "^2.85.0"
+    semaphore "^1.0.3"
+    ws "^5.1.1"
+    xhr "^2.2.0"
+    xtend "^4.0.1"
+
 "@types/babel__core@^7.0.0", "@types/babel__core@^7.1.14":
   version "7.1.16"
   resolved "https://registry.yarnpkg.com/@types/babel__core/-/babel__core-7.1.16.tgz#bc12c74b7d65e82d29876b5d0baf5c625ac58702"
@@ -768,7 +919,7 @@
   dependencies:
     "@babel/types" "^7.3.0"
 
-"@types/bn.js@^4.11.5":
+"@types/bn.js@^4.11.3", "@types/bn.js@^4.11.5":
   version "4.11.6"
   resolved "https://registry.yarnpkg.com/@types/bn.js/-/bn.js-4.11.6.tgz#c306c70d9358aaea33cd4eda092a742b9505967c"
   integrity sha512-pqr857jrp2kPuO9uRjZ3PwnJTjoQy+fcdxvBTvHm6dkmEL9q+hDD/2j/0ELOBPtPnS8LjCX0gI9nbl8lVkadpg==
@@ -1047,6 +1198,20 @@ abbrev@1:
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
   integrity sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q==
 
+abstract-leveldown@~2.6.0:
+  version "2.6.3"
+  resolved "https://registry.yarnpkg.com/abstract-leveldown/-/abstract-leveldown-2.6.3.tgz#1c5e8c6a5ef965ae8c35dfb3a8770c476b82c4b8"
+  integrity sha512-2++wDf/DYqkPR3o5tbfdhF96EfMApo1GpPfzOsR/ZYXdkSmELlvOOEAl9iKkRsktMPHdGjO4rtkBpf2I7TiTeA==
+  dependencies:
+    xtend "~4.0.0"
+
+abstract-leveldown@~2.7.1:
+  version "2.7.2"
+  resolved "https://registry.yarnpkg.com/abstract-leveldown/-/abstract-leveldown-2.7.2.tgz#87a44d7ebebc341d59665204834c8b7e0932cc93"
+  integrity sha512-+OVvxH2rHVEhWLdbudP6p0+dNMXu8JA1CbhP19T8paTYAcX7oJ4OVjT+ZUVpv7mITxXHqDMej+GdqXBmXkw09w==
+  dependencies:
+    xtend "~4.0.0"
+
 accepts@~1.3.4, accepts@~1.3.7:
   version "1.3.7"
   resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.7.tgz#531bc726517a3b2b41f850021c6cc15eaab507cd"
@@ -1078,6 +1243,11 @@ acorn@^8.2.4:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-8.5.0.tgz#4512ccb99b3698c752591e9bb4472e38ad43cee2"
   integrity sha512-yXbYeFy+jUuYd3/CDcg2NkIYE991XYX/bje7LmjJigUciaeO1JR4XxXgCIV1/Zc/dRuFEyw1L0pbA+qynJkW5Q==
 
+aes-js@^3.1.2:
+  version "3.1.2"
+  resolved "https://registry.yarnpkg.com/aes-js/-/aes-js-3.1.2.tgz#db9aabde85d5caabbfc0d4f2a4446960f627146a"
+  integrity sha512-e5pEa2kBnBOgR4Y/p20pskXI74UEz7de8ZGVo58asOtvSVG5YAbJeELPZxOmt+Bnz3rX753YKhfIn4X4l1PPRQ==
+
 agent-base@6:
   version "6.0.2"
   resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-6.0.2.tgz#49fff58577cfee3f37176feab4c22e00f86d7f77"
@@ -1206,11 +1376,30 @@ assert-plus@1.0.0, assert-plus@^1.0.0:
   resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-1.0.0.tgz#f12e0f3c5d77b0b1cdd9146942e4e96c1e4dd525"
   integrity sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU=
 
+async-eventemitter@^0.2.2:
+  version "0.2.4"
+  resolved "https://registry.yarnpkg.com/async-eventemitter/-/async-eventemitter-0.2.4.tgz#f5e7c8ca7d3e46aab9ec40a292baf686a0bafaca"
+  integrity sha512-pd20BwL7Yt1zwDFy+8MX8F1+WCT8aQeKj0kQnTrH9WaeRETlRamVhD0JtRPmrV4GfOJ2F9CvdQkZeZhnh2TuHw==
+  dependencies:
+    async "^2.4.0"
+
 async-limiter@~1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/async-limiter/-/async-limiter-1.0.1.tgz#dd379e94f0db8310b08291f9d64c3209766617fd"
   integrity sha512-csOlWGAcRFJaI6m+F2WKdnMKr4HhdhFVBk0H/QbJFMCr+uO2kwohwXQPxw/9OCxp05r5ghVBFSyioixx3gfkNQ==
 
+async@^1.4.2:
+  version "1.5.2"
+  resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
+  integrity sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=
+
+async@^2.0.1, async@^2.1.2, async@^2.4.0, async@^2.5.0:
+  version "2.6.3"
+  resolved "https://registry.yarnpkg.com/async/-/async-2.6.3.tgz#d72625e2344a3656e3a3ad4fa749fa83299d82ff"
+  integrity sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==
+  dependencies:
+    lodash "^4.17.14"
+
 asynckit@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
@@ -1221,6 +1410,11 @@ available-typed-arrays@^1.0.4:
   resolved "https://registry.yarnpkg.com/available-typed-arrays/-/available-typed-arrays-1.0.4.tgz#9e0ae84ecff20caae6a94a1c3bc39b955649b7a9"
   integrity sha512-SA5mXJWrId1TaQjfxUYghbqQ/hYioKmLJvPJyDuYRtXXenFNMjj4hSSt1Cf1xsuXSXrtxrVC5Ot4eU6cOtBDdA==
 
+await-semaphore@^0.1.3:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/await-semaphore/-/await-semaphore-0.1.3.tgz#2b88018cc8c28e06167ae1cdff02504f1f9688d3"
+  integrity sha512-d1W2aNSYcz/sxYO4pMGX9vq65qOTu0P800epMud+6cYYX0QcT7zyqcxec3VWzpgvdXo57UWmVbZpLMjX2m1I7Q==
+
 aws-sign2@~0.7.0:
   version "0.7.0"
   resolved "https://registry.yarnpkg.com/aws-sign2/-/aws-sign2-0.7.0.tgz#b46e890934a9591f2d2f6f86d7e6a9f1b3fe76a8"
@@ -1273,6 +1467,30 @@ babel-plugin-jest-hoist@^27.2.0:
     "@types/babel__core" "^7.0.0"
     "@types/babel__traverse" "^7.0.6"
 
+babel-plugin-polyfill-corejs2@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-polyfill-corejs2/-/babel-plugin-polyfill-corejs2-0.3.0.tgz#407082d0d355ba565af24126fb6cb8e9115251fd"
+  integrity sha512-wMDoBJ6uG4u4PNFh72Ty6t3EgfA91puCuAwKIazbQlci+ENb/UU9A3xG5lutjUIiXCIn1CY5L15r9LimiJyrSA==
+  dependencies:
+    "@babel/compat-data" "^7.13.11"
+    "@babel/helper-define-polyfill-provider" "^0.3.0"
+    semver "^6.1.1"
+
+babel-plugin-polyfill-corejs3@^0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-polyfill-corejs3/-/babel-plugin-polyfill-corejs3-0.4.0.tgz#0b571f4cf3d67f911512f5c04842a7b8e8263087"
+  integrity sha512-YxFreYwUfglYKdLUGvIF2nJEsGwj+RhWSX/ije3D2vQPOXuyMLMtg/cCGMDpOA7Nd+MwlNdnGODbd2EwUZPlsw==
+  dependencies:
+    "@babel/helper-define-polyfill-provider" "^0.3.0"
+    core-js-compat "^3.18.0"
+
+babel-plugin-polyfill-regenerator@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-polyfill-regenerator/-/babel-plugin-polyfill-regenerator-0.3.0.tgz#9ebbcd7186e1a33e21c5e20cae4e7983949533be"
+  integrity sha512-dhAPTDLGoMW5/84wkgwiLRwMnio2i1fUe53EuvtKMv0pn2p3S8OCoV1xAzfJPl0KOX7IB89s2ib85vbYiea3jg==
+  dependencies:
+    "@babel/helper-define-polyfill-provider" "^0.3.0"
+
 babel-preset-current-node-syntax@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/babel-preset-current-node-syntax/-/babel-preset-current-node-syntax-1.0.1.tgz#b4399239b89b2a011f9ddbe3e4f401fc40cff73b"
@@ -1304,6 +1522,13 @@ backo2@~1.0.2:
   resolved "https://registry.yarnpkg.com/backo2/-/backo2-1.0.2.tgz#31ab1ac8b129363463e35b3ebb69f4dfcfba7947"
   integrity sha1-MasayLEpNjRj41s+u2n038+6eUc=
 
+backoff@^2.5.0:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/backoff/-/backoff-2.5.0.tgz#f616eda9d3e4b66b8ca7fca79f695722c5f8e26f"
+  integrity sha1-9hbtqdPktmuMp/ynn2lXIsX44m8=
+  dependencies:
+    precond "0.2"
+
 balanced-match@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.2.tgz#e83e3a7e3f300b34cb9d87f615fa0cbf357690ee"
@@ -1383,12 +1608,12 @@ bn.js@4.11.6:
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.6.tgz#53344adb14617a13f6e8dd2ce28905d1c0ba3215"
   integrity sha1-UzRK2xRhehP26N0s4okF0cC6MhU=
 
-bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.11.1, bn.js@^4.11.6, bn.js@^4.11.9:
+bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.11.0, bn.js@^4.11.1, bn.js@^4.11.6, bn.js@^4.11.8, bn.js@^4.11.9:
   version "4.12.0"
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.12.0.tgz#775b3f278efbb9718eec7361f483fb36fbbfea88"
   integrity sha512-c98Bf3tPniI+scsdk237ku1Dc3ujXQTSgyiPUDEOe7tRkhrqridvh8klBv0HCEso1OLOYcHuCv/cS6DNxKH+ZA==
 
-bn.js@^5.0.0, bn.js@^5.1.1, bn.js@^5.1.2:
+bn.js@^5.0.0, bn.js@^5.1.1, bn.js@^5.1.2, bn.js@^5.2.0:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-5.2.0.tgz#358860674396c6997771a9d051fcc1b57d4ae002"
   integrity sha512-D7iWRBvnZE8ecXiLj/9wbxH7Tk79fAh8IHaTNq1RWRixsS02W+5qS+iE9yq6RYl0asXx5tw0bLhmT5pIfbSquw==
@@ -1499,6 +1724,17 @@ browserslist@^4.17.5:
     node-releases "^2.0.1"
     picocolors "^1.0.0"
 
+browserslist@^4.17.6:
+  version "4.18.1"
+  resolved "https://registry.yarnpkg.com/browserslist/-/browserslist-4.18.1.tgz#60d3920f25b6860eb917c6c7b185576f4d8b017f"
+  integrity sha512-8ScCzdpPwR2wQh8IT82CA2VgDwjHyqMovPBZSNH54+tm4Jk2pCuv90gmAdH6J84OCRWi0b4gMe6O6XPXuJnjgQ==
+  dependencies:
+    caniuse-lite "^1.0.30001280"
+    electron-to-chromium "^1.3.896"
+    escalade "^3.1.1"
+    node-releases "^2.0.1"
+    picocolors "^1.0.0"
+
 bs-logger@0.x:
   version "0.2.6"
   resolved "https://registry.yarnpkg.com/bs-logger/-/bs-logger-0.2.6.tgz#eb7d365307a72cf974cc6cda76b68354ad336bd8"
@@ -1541,6 +1777,11 @@ bson@^4.2.2, bson@^4.5.1:
   dependencies:
     buffer "^5.6.0"
 
+btoa@^1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/btoa/-/btoa-1.2.1.tgz#01a9909f8b2c93f6bf680ba26131eb30f7fa3d73"
+  integrity sha512-SB4/MIGlsiVkMcHmT+pSmIPoNDoHg+7cMzmt3Uxt628MTz2487DKSqK/fuhFBrkuqrYv5UCEnACpF4dTFNKc/g==
+
 buffer-equal-constant-time@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/buffer-equal-constant-time/-/buffer-equal-constant-time-1.0.1.tgz#f8e71132f7ffe6e01a5c9697a4c6f3e48d5cc819"
@@ -1622,6 +1863,11 @@ caniuse-lite@^1.0.30001274:
   resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001279.tgz#eb06818da481ef5096a3b3760f43e5382ed6b0ce"
   integrity sha512-VfEHpzHEXj6/CxggTwSFoZBBYGQfQv9Cf42KPlO79sWXCD1QNKWKsKzFeWL7QpZHJQYAvocqV6Rty1yJMkqWLQ==
 
+caniuse-lite@^1.0.30001280:
+  version "1.0.30001282"
+  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001282.tgz#38c781ee0a90ccfe1fe7fefd00e43f5ffdcb96fd"
+  integrity sha512-YhF/hG6nqBEllymSIjLtR2iWDDnChvhnVJqp+vloyt2tEHFG1yBR+ac2B/rOw0qOK0m0lEXU2dv4E/sMk5P9Kg==
+
 caseless@~0.12.0:
   version "0.12.0"
   resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
@@ -1649,6 +1895,13 @@ char-regex@^1.0.2:
   resolved "https://registry.yarnpkg.com/char-regex/-/char-regex-1.0.2.tgz#d744358226217f981ed58f479b1d6bcc29545dcf"
   integrity sha512-kWWXztvZ5SBQV+eRgKFeh8q5sLuZY2+8WUIzlxWVTg+oGwY14qylx1KbKzHd8P6ZYkAg0xyIDU9JMHhyJMZ1jw==
 
+checkpoint-store@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/checkpoint-store/-/checkpoint-store-1.1.0.tgz#04e4cb516b91433893581e6d4601a78e9552ea06"
+  integrity sha1-BOTLUWuRQziTWB5tRgGnjpVS6gY=
+  dependencies:
+    functional-red-black-tree "^1.0.1"
+
 chokidar@^3.5.1:
   version "3.5.2"
   resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-3.5.2.tgz#dba3976fcadb016f66fd365021d91600d01c1e75"
@@ -1724,6 +1977,11 @@ clone-response@^1.0.2:
   dependencies:
     mimic-response "^1.0.0"
 
+clone@^2.0.0, clone@^2.1.1:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/clone/-/clone-2.1.2.tgz#1b7f4b9f591f1e8f83670401600345a02887435f"
+  integrity sha1-G39Ln1kfHo+DZwQBYANFoCiHQ18=
+
 co@^4.6.0:
   version "4.6.0"
   resolved "https://registry.yarnpkg.com/co/-/co-4.6.0.tgz#6ea6bdf3d853ae54ccb8e47bfa0bf3f9031fb184"
@@ -1846,6 +2104,14 @@ cookiejar@^2.1.2:
   resolved "https://registry.yarnpkg.com/cookiejar/-/cookiejar-2.1.3.tgz#fc7a6216e408e74414b90230050842dacda75acc"
   integrity sha512-JxbCBUdrfr6AQjOXrxoTvAMJO4HBTUIlBzslcJPAz+/KT8yk53fXun51u+RenNYvad/+Vc2DIz5o9UxlCDymFQ==
 
+core-js-compat@^3.18.0:
+  version "3.19.1"
+  resolved "https://registry.yarnpkg.com/core-js-compat/-/core-js-compat-3.19.1.tgz#fe598f1a9bf37310d77c3813968e9f7c7bb99476"
+  integrity sha512-Q/VJ7jAF/y68+aUsQJ/afPOewdsGkDtcMb40J8MbuWKlK3Y+wtHq8bTHKPj2WKWLIqmS5JhHs4CzHtz6pT2W6g==
+  dependencies:
+    browserslist "^4.17.6"
+    semver "7.0.0"
+
 core-util-is@1.0.2, core-util-is@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
@@ -1910,6 +2176,14 @@ cross-env@^7.0.3:
   dependencies:
     cross-spawn "^7.0.1"
 
+cross-fetch@^2.1.0, cross-fetch@^2.1.1:
+  version "2.2.5"
+  resolved "https://registry.yarnpkg.com/cross-fetch/-/cross-fetch-2.2.5.tgz#afaf5729f3b6c78d89c9296115c9f142541a5705"
+  integrity sha512-xqYAhQb4NhCJSRym03dwxpP1bYXpK3y7UN83Bo2WFi3x1Zmzn0SL/6xGoPr+gpt4WmNrgCCX3HPysvOwFOW36w==
+  dependencies:
+    node-fetch "2.6.1"
+    whatwg-fetch "2.0.4"
+
 cross-spawn@^7.0.1, cross-spawn@^7.0.3:
   version "7.0.3"
   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-7.0.3.tgz#f73a85b9d5d41d045551c177e2882d4ac85728a6"
@@ -2035,6 +2309,13 @@ defer-to-connect@^1.0.1:
   resolved "https://registry.yarnpkg.com/defer-to-connect/-/defer-to-connect-1.1.3.tgz#331ae050c08dcf789f8c83a7b81f0ed94f4ac591"
   integrity sha512-0ISdNousHvZT2EiFlZeZAHBUvSxmKswVCEf8hW7KWgG4a8MVEu/3Vb6uWYozkjylyCxe0JBIiRB1jV45S70WVQ==
 
+deferred-leveldown@~1.2.1:
+  version "1.2.2"
+  resolved "https://registry.yarnpkg.com/deferred-leveldown/-/deferred-leveldown-1.2.2.tgz#3acd2e0b75d1669924bc0a4b642851131173e1eb"
+  integrity sha512-uukrWD2bguRtXilKt6cAWKyoXrTSMo5m7crUdLfWQmu8kIm88w3QZoUL+6nhpfKVmhHANER6Re3sKoNoZ3IKMA==
+  dependencies:
+    abstract-leveldown "~2.6.0"
+
 define-properties@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/define-properties/-/define-properties-1.1.3.tgz#cf88da6cbee26fe6db7094f61d870cbd84cee9f1"
@@ -2163,6 +2444,11 @@ electron-to-chromium@^1.3.886:
   resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.895.tgz#9b0f8f2e32d8283bbb200156fd5d8dfd775f31ed"
   integrity sha512-9Ww3fB8CWctjqHwkOt7DQbMZMpal2x2reod+/lU4b9axO1XJEDUpPMBxs7YnjLhhqpKXIIB5SRYN/B4K0QpvyQ==
 
+electron-to-chromium@^1.3.896:
+  version "1.3.904"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.904.tgz#52a353994faeb0f2a9fab3606b4e0614d1af7b58"
+  integrity sha512-x5uZWXcVNYkTh4JubD7KSC1VMKz0vZwJUqVwY3ihsW0bst1BXDe494Uqbg3Y0fDGVjJqA8vEeGuvO5foyH2+qw==
+
 elliptic@6.5.4, elliptic@^6.4.0, elliptic@^6.5.2, elliptic@^6.5.3:
   version "6.5.4"
   resolved "https://registry.yarnpkg.com/elliptic/-/elliptic-6.5.4.tgz#da37cebd31e79a1367e941b592ed1fbebd58abbb"
@@ -2191,6 +2477,13 @@ encodeurl@~1.0.2:
   resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
   integrity sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k=
 
+encoding@^0.1.11:
+  version "0.1.13"
+  resolved "https://registry.yarnpkg.com/encoding/-/encoding-0.1.13.tgz#56574afdd791f54a8e9b2785c0582a2d26210fa9"
+  integrity sha512-ETBauow1T35Y/WZMkio9jiM0Z5xjHHmJ4XmjZOq1l/dXz3lr2sRn87nJy20RupqSh1F2m3HHPSp8ShIPQJrJ3A==
+  dependencies:
+    iconv-lite "^0.6.2"
+
 end-of-stream@^1.1.0:
   version "1.4.4"
   resolved "https://registry.yarnpkg.com/end-of-stream/-/end-of-stream-1.4.4.tgz#5ae64a5f45057baf3626ec14da0ca5e4b2431eb0"
@@ -2236,6 +2529,13 @@ engine.io@~6.0.0:
     engine.io-parser "~5.0.0"
     ws "~8.2.3"
 
+errno@~0.1.1:
+  version "0.1.8"
+  resolved "https://registry.yarnpkg.com/errno/-/errno-0.1.8.tgz#8bb3e9c7d463be4976ff888f76b4809ebc2e811f"
+  integrity sha512-dJ6oBr5SQ1VSd9qkk7ByRgb/1SH4JZjCHSW/mr63/QcXO9zLVxvJ6Oy13nio03rxpSnVDDjFor75SjVeZWPW/A==
+  dependencies:
+    prr "~1.0.1"
+
 es-abstract@^1.18.5:
   version "1.18.5"
   resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.18.5.tgz#9b10de7d4c206a3581fd5b2124233e04db49ae19"
@@ -2346,6 +2646,18 @@ etag@~1.8.1:
   resolved "https://registry.yarnpkg.com/etag/-/etag-1.8.1.tgz#41ae2eeb65efa62268aebfea83ac7d79299b0887"
   integrity sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc=
 
+eth-block-tracker@^4.4.2:
+  version "4.4.3"
+  resolved "https://registry.yarnpkg.com/eth-block-tracker/-/eth-block-tracker-4.4.3.tgz#766a0a0eb4a52c867a28328e9ae21353812cf626"
+  integrity sha512-A8tG4Z4iNg4mw5tP1Vung9N9IjgMNqpiMoJ/FouSFwNCGHv2X0mmOYwtQOJzki6XN7r7Tyo01S29p7b224I4jw==
+  dependencies:
+    "@babel/plugin-transform-runtime" "^7.5.5"
+    "@babel/runtime" "^7.5.5"
+    eth-query "^2.1.0"
+    json-rpc-random-id "^1.0.1"
+    pify "^3.0.0"
+    safe-event-emitter "^1.0.1"
+
 eth-ens-namehash@2.0.8:
   version "2.0.8"
   resolved "https://registry.yarnpkg.com/eth-ens-namehash/-/eth-ens-namehash-2.0.8.tgz#229ac46eca86d52e0c991e7cb2aef83ff0f68bcf"
@@ -2354,6 +2666,20 @@ eth-ens-namehash@2.0.8:
     idna-uts46-hx "^2.3.1"
     js-sha3 "^0.5.7"
 
+eth-json-rpc-errors@^1.0.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/eth-json-rpc-errors/-/eth-json-rpc-errors-1.1.1.tgz#148377ef55155585981c21ff574a8937f9d6991f"
+  integrity sha512-WT5shJ5KfNqHi9jOZD+ID8I1kuYWNrigtZat7GOQkvwo99f8SzAVaEcWhJUv656WiZOAg3P1RiJQANtUmDmbIg==
+  dependencies:
+    fast-safe-stringify "^2.0.6"
+
+eth-json-rpc-errors@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/eth-json-rpc-errors/-/eth-json-rpc-errors-2.0.2.tgz#c1965de0301fe941c058e928bebaba2e1285e3c4"
+  integrity sha512-uBCRM2w2ewusRHGxN8JhcuOb2RN3ueAOYH/0BhqdFmQkZx5lj5+fLKTz0mIVOzd4FG5/kUksCzCD7eTEim6gaA==
+  dependencies:
+    fast-safe-stringify "^2.0.6"
+
 eth-lib@0.2.8:
   version "0.2.8"
   resolved "https://registry.yarnpkg.com/eth-lib/-/eth-lib-0.2.8.tgz#b194058bef4b220ad12ea497431d6cb6aa0623c8"
@@ -2375,6 +2701,31 @@ eth-lib@^0.1.26:
     ws "^3.0.0"
     xhr-request-promise "^0.1.2"
 
+eth-query@^2.1.0, eth-query@^2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/eth-query/-/eth-query-2.1.2.tgz#d6741d9000106b51510c72db92d6365456a6da5e"
+  integrity sha1-1nQdkAAQa1FRDHLbktY2VFam2l4=
+  dependencies:
+    json-rpc-random-id "^1.0.0"
+    xtend "^4.0.1"
+
+eth-rpc-errors@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/eth-rpc-errors/-/eth-rpc-errors-3.0.0.tgz#d7b22653c70dbf9defd4ef490fd08fe70608ca10"
+  integrity sha512-iPPNHPrLwUlR9xCSYm7HHQjWBasor3+KZfRvwEWxMz3ca0yqnlBeJrnyphkGIXZ4J7AMAaOLmwy4AWhnxOiLxg==
+  dependencies:
+    fast-safe-stringify "^2.0.6"
+
+eth-sig-util@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/eth-sig-util/-/eth-sig-util-3.0.1.tgz#8753297c83a3f58346bd13547b59c4b2cd110c96"
+  integrity sha512-0Us50HiGGvZgjtWTyAI/+qTzYPMLy5Q451D0Xy68bxq1QMWdoOddDwGvsqcFT27uohKgalM9z/yxplyt+mY2iQ==
+  dependencies:
+    ethereumjs-abi "^0.6.8"
+    ethereumjs-util "^5.1.1"
+    tweetnacl "^1.0.3"
+    tweetnacl-util "^0.15.0"
+
 ethereum-bloom-filters@^1.0.6:
   version "1.0.10"
   resolved "https://registry.yarnpkg.com/ethereum-bloom-filters/-/ethereum-bloom-filters-1.0.10.tgz#3ca07f4aed698e75bd134584850260246a5fed8a"
@@ -2382,6 +2733,16 @@ ethereum-bloom-filters@^1.0.6:
   dependencies:
     js-sha3 "^0.8.0"
 
+ethereum-common@0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/ethereum-common/-/ethereum-common-0.2.0.tgz#13bf966131cce1eeade62a1b434249bb4cb120ca"
+  integrity sha512-XOnAR/3rntJgbCdGhqdaLIxDLWKLmsZOGhHdBKadEr6gEnJLH52k93Ou+TUdFaPN3hJc3isBZBal3U/XZ15abA==
+
+ethereum-common@^0.0.18:
+  version "0.0.18"
+  resolved "https://registry.yarnpkg.com/ethereum-common/-/ethereum-common-0.0.18.tgz#2fdc3576f232903358976eb39da783213ff9523f"
+  integrity sha1-L9w1dvIykDNYl26znaeDIT/5Uj8=
+
 ethereum-cryptography@^0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/ethereum-cryptography/-/ethereum-cryptography-0.1.3.tgz#8d6143cfc3d74bf79bbd8edecdf29e4ae20dd191"
@@ -2403,6 +2764,97 @@ ethereum-cryptography@^0.1.3:
     secp256k1 "^4.0.1"
     setimmediate "^1.0.5"
 
+ethereum-protocol@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/ethereum-protocol/-/ethereum-protocol-1.0.1.tgz#b7d68142f4105e0ae7b5e178cf42f8d4dc4b93cf"
+  integrity sha512-3KLX1mHuEsBW0dKG+c6EOJS1NBNqdCICvZW9sInmZTt5aY0oxmHVggYRE0lJu1tcnMD1K+AKHdLi6U43Awm1Vg==
+
+ethereumjs-abi@^0.6.8:
+  version "0.6.8"
+  resolved "https://registry.yarnpkg.com/ethereumjs-abi/-/ethereumjs-abi-0.6.8.tgz#71bc152db099f70e62f108b7cdfca1b362c6fcae"
+  integrity sha512-Tx0r/iXI6r+lRsdvkFDlut0N08jWMnKRZ6Gkq+Nmw75lZe4e6o3EkSnkaBP5NF6+m5PTGAr9JP43N3LyeoglsA==
+  dependencies:
+    bn.js "^4.11.8"
+    ethereumjs-util "^6.0.0"
+
+ethereumjs-account@^2.0.3:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/ethereumjs-account/-/ethereumjs-account-2.0.5.tgz#eeafc62de544cb07b0ee44b10f572c9c49e00a84"
+  integrity sha512-bgDojnXGjhMwo6eXQC0bY6UK2liSFUSMwwylOmQvZbSl/D7NXQ3+vrGO46ZeOgjGfxXmgIeVNDIiHw7fNZM4VA==
+  dependencies:
+    ethereumjs-util "^5.0.0"
+    rlp "^2.0.0"
+    safe-buffer "^5.1.1"
+
+ethereumjs-block@^1.2.2, ethereumjs-block@^1.6.0:
+  version "1.7.1"
+  resolved "https://registry.yarnpkg.com/ethereumjs-block/-/ethereumjs-block-1.7.1.tgz#78b88e6cc56de29a6b4884ee75379b6860333c3f"
+  integrity sha512-B+sSdtqm78fmKkBq78/QLKJbu/4Ts4P2KFISdgcuZUPDm9x+N7qgBPIIFUGbaakQh8bzuquiRVbdmvPKqbILRg==
+  dependencies:
+    async "^2.0.1"
+    ethereum-common "0.2.0"
+    ethereumjs-tx "^1.2.2"
+    ethereumjs-util "^5.0.0"
+    merkle-patricia-tree "^2.1.2"
+
+ethereumjs-block@~2.2.0:
+  version "2.2.2"
+  resolved "https://registry.yarnpkg.com/ethereumjs-block/-/ethereumjs-block-2.2.2.tgz#c7654be7e22df489fda206139ecd63e2e9c04965"
+  integrity sha512-2p49ifhek3h2zeg/+da6XpdFR3GlqY3BIEiqxGF8j9aSRIgkb7M1Ky+yULBKJOu8PAZxfhsYA+HxUk2aCQp3vg==
+  dependencies:
+    async "^2.0.1"
+    ethereumjs-common "^1.5.0"
+    ethereumjs-tx "^2.1.1"
+    ethereumjs-util "^5.0.0"
+    merkle-patricia-tree "^2.1.2"
+
+ethereumjs-common@^1.1.0, ethereumjs-common@^1.5.0:
+  version "1.5.2"
+  resolved "https://registry.yarnpkg.com/ethereumjs-common/-/ethereumjs-common-1.5.2.tgz#2065dbe9214e850f2e955a80e650cb6999066979"
+  integrity sha512-hTfZjwGX52GS2jcVO6E2sx4YuFnf0Fhp5ylo4pEPhEffNln7vS59Hr5sLnp3/QCazFLluuBZ+FZ6J5HTp0EqCA==
+
+ethereumjs-tx@^1.2.2, ethereumjs-tx@^1.3.7:
+  version "1.3.7"
+  resolved "https://registry.yarnpkg.com/ethereumjs-tx/-/ethereumjs-tx-1.3.7.tgz#88323a2d875b10549b8347e09f4862b546f3d89a"
+  integrity sha512-wvLMxzt1RPhAQ9Yi3/HKZTn0FZYpnsmQdbKYfUUpi4j1SEIcbkd9tndVjcPrufY3V7j2IebOpC00Zp2P/Ay2kA==
+  dependencies:
+    ethereum-common "^0.0.18"
+    ethereumjs-util "^5.0.0"
+
+ethereumjs-tx@^2.1.1:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/ethereumjs-tx/-/ethereumjs-tx-2.1.2.tgz#5dfe7688bf177b45c9a23f86cf9104d47ea35fed"
+  integrity sha512-zZEK1onCeiORb0wyCXUvg94Ve5It/K6GD1K+26KfFKodiBiS6d9lfCXlUKGBBdQ+bv7Day+JK0tj1K+BeNFRAw==
+  dependencies:
+    ethereumjs-common "^1.5.0"
+    ethereumjs-util "^6.0.0"
+
+ethereumjs-util@^5.0.0, ethereumjs-util@^5.1.1, ethereumjs-util@^5.1.2, ethereumjs-util@^5.1.5:
+  version "5.2.1"
+  resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-5.2.1.tgz#a833f0e5fca7e5b361384dc76301a721f537bf65"
+  integrity sha512-v3kT+7zdyCm1HIqWlLNrHGqHGLpGYIhjeHxQjnDXjLT2FyGJDsd3LWMYUo7pAFRrk86CR3nUJfhC81CCoJNNGQ==
+  dependencies:
+    bn.js "^4.11.0"
+    create-hash "^1.1.2"
+    elliptic "^6.5.2"
+    ethereum-cryptography "^0.1.3"
+    ethjs-util "^0.1.3"
+    rlp "^2.0.0"
+    safe-buffer "^5.1.1"
+
+ethereumjs-util@^6.0.0, ethereumjs-util@^6.1.0:
+  version "6.2.1"
+  resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-6.2.1.tgz#fcb4e4dd5ceacb9d2305426ab1a5cd93e3163b69"
+  integrity sha512-W2Ktez4L01Vexijrm5EB6w7dg4n/TgpoYU4avuT5T3Vmnw/eCRtiBrJfQYS/DCSvDIOLn2k57GcHdeBcgVxAqw==
+  dependencies:
+    "@types/bn.js" "^4.11.3"
+    bn.js "^4.11.0"
+    create-hash "^1.1.2"
+    elliptic "^6.5.2"
+    ethereum-cryptography "^0.1.3"
+    ethjs-util "0.1.6"
+    rlp "^2.2.3"
+
 ethereumjs-util@^7.0.10, ethereumjs-util@^7.1.0:
   version "7.1.0"
   resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-7.1.0.tgz#e2b43a30bfcdbcb432a4eb42bd5f2393209b3fd5"
@@ -2415,6 +2867,48 @@ ethereumjs-util@^7.0.10, ethereumjs-util@^7.1.0:
     ethjs-util "0.1.6"
     rlp "^2.2.4"
 
+ethereumjs-util@^7.1.2, ethereumjs-util@^7.1.3:
+  version "7.1.3"
+  resolved "https://registry.yarnpkg.com/ethereumjs-util/-/ethereumjs-util-7.1.3.tgz#b55d7b64dde3e3e45749e4c41288238edec32d23"
+  integrity sha512-y+82tEbyASO0K0X1/SRhbJJoAlfcvq8JbrG4a5cjrOks7HS/36efU/0j2flxCPOUM++HFahk33kr/ZxyC4vNuw==
+  dependencies:
+    "@types/bn.js" "^5.1.0"
+    bn.js "^5.1.2"
+    create-hash "^1.1.2"
+    ethereum-cryptography "^0.1.3"
+    rlp "^2.2.4"
+
+ethereumjs-vm@^2.3.4, ethereumjs-vm@^2.6.0:
+  version "2.6.0"
+  resolved "https://registry.yarnpkg.com/ethereumjs-vm/-/ethereumjs-vm-2.6.0.tgz#76243ed8de031b408793ac33907fb3407fe400c6"
+  integrity sha512-r/XIUik/ynGbxS3y+mvGnbOKnuLo40V5Mj1J25+HEO63aWYREIqvWeRO/hnROlMBE5WoniQmPmhiaN0ctiHaXw==
+  dependencies:
+    async "^2.1.2"
+    async-eventemitter "^0.2.2"
+    ethereumjs-account "^2.0.3"
+    ethereumjs-block "~2.2.0"
+    ethereumjs-common "^1.1.0"
+    ethereumjs-util "^6.0.0"
+    fake-merkle-patricia-tree "^1.0.1"
+    functional-red-black-tree "^1.0.1"
+    merkle-patricia-tree "^2.3.2"
+    rustbn.js "~0.2.0"
+    safe-buffer "^5.1.1"
+
+ethereumjs-wallet@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/ethereumjs-wallet/-/ethereumjs-wallet-1.0.2.tgz#2c000504b4c71e8f3782dabe1113d192522e99b6"
+  integrity sha512-CCWV4RESJgRdHIvFciVQFnCHfqyhXWchTPlkfp28Qc53ufs+doi5I/cV2+xeK9+qEo25XCWfP9MiL+WEPAZfdA==
+  dependencies:
+    aes-js "^3.1.2"
+    bs58check "^2.1.2"
+    ethereum-cryptography "^0.1.3"
+    ethereumjs-util "^7.1.2"
+    randombytes "^2.1.0"
+    scrypt-js "^3.0.1"
+    utf8 "^3.0.0"
+    uuid "^8.3.2"
+
 ethjs-unit@0.1.6:
   version "0.1.6"
   resolved "https://registry.yarnpkg.com/ethjs-unit/-/ethjs-unit-0.1.6.tgz#c665921e476e87bce2a9d588a6fe0405b2c41699"
@@ -2423,7 +2917,7 @@ ethjs-unit@0.1.6:
     bn.js "4.11.6"
     number-to-bn "1.7.0"
 
-ethjs-util@0.1.6:
+ethjs-util@0.1.6, ethjs-util@^0.1.3:
   version "0.1.6"
   resolved "https://registry.yarnpkg.com/ethjs-util/-/ethjs-util-0.1.6.tgz#f308b62f185f9fe6237132fb2a9818866a5cd536"
   integrity sha512-CUnVOQq7gSpDHZVVrQW8ExxUETWrnrvXYvYz55wOU8Uj4VCgw56XC2B/fVqQN+f7gmrnRHSLVnFAwsCuNwji8w==
@@ -2436,6 +2930,11 @@ eventemitter3@4.0.4:
   resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-4.0.4.tgz#b5463ace635a083d018bdc7c917b4c5f10a85384"
   integrity sha512-rlaVLnVxtxvoyLsQQFBx53YmXHDxRIzzTLbdfxqi4yocpSjAxXwkU0cScM5JgSKMqEhrZpnvQ2D9gjylR0AimQ==
 
+events@^3.0.0:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/events/-/events-3.3.0.tgz#31a95ad0a924e2d2c419a813aeb2c4e878ea7400"
+  integrity sha512-mQw+2fkQbALzQ7V0MY0IqdnXNOeTtP4r0lN9z7AAawCXgqea7bDii20AYrIBrFd/Hx0M2Ocz6S111CaFkUcb0Q==
+
 evp_bytestokey@^1.0.0, evp_bytestokey@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/evp_bytestokey/-/evp_bytestokey-1.0.3.tgz#7fcbdb198dc71959432efe13842684e0525acb02"
@@ -2539,6 +3038,13 @@ extsprintf@^1.2.0:
   resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.4.0.tgz#e2689f8f356fad62cca65a3a91c5df5f9551692f"
   integrity sha1-4mifjzVvrWLMplo6kcXfX5VRaS8=
 
+fake-merkle-patricia-tree@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/fake-merkle-patricia-tree/-/fake-merkle-patricia-tree-1.0.1.tgz#4b8c3acfb520afadf9860b1f14cd8ce3402cddd3"
+  integrity sha1-S4w6z7Ugr635hgsfFM2M40As3dM=
+  dependencies:
+    checkpoint-store "^1.1.0"
+
 fast-deep-equal@^3.1.1:
   version "3.1.3"
   resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz#3a7d56b559d6cbc3eb512325244e619a65c6c525"
@@ -2554,7 +3060,7 @@ fast-levenshtein@~2.0.6:
   resolved "https://registry.yarnpkg.com/fast-levenshtein/-/fast-levenshtein-2.0.6.tgz#3d8a5c66883a16a30ca8643e851f19baa7797917"
   integrity sha1-PYpcZog6FqMMqGQ+hR8Zuqd5eRc=
 
-fast-safe-stringify@^2.0.7:
+fast-safe-stringify@^2.0.6, fast-safe-stringify@^2.0.7:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/fast-safe-stringify/-/fast-safe-stringify-2.1.1.tgz#c406a83b6e70d9e35ce3b30a81141df30aeba884"
   integrity sha512-W+KJc2dmILlPplD/H4K9l9LcAHAfPtP6BY84uVLXQ6Evcz9Lcg33Y2z1IVblT6xdY54PXYVHEv+0Wpq8Io6zkA==
@@ -2566,6 +3072,13 @@ fb-watchman@^2.0.0:
   dependencies:
     bser "2.1.1"
 
+fetch-ponyfill@^4.0.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/fetch-ponyfill/-/fetch-ponyfill-4.1.0.tgz#ae3ce5f732c645eab87e4ae8793414709b239893"
+  integrity sha1-rjzl9zLGReq4fkroeTQUcJsjmJM=
+  dependencies:
+    node-fetch "~1.7.1"
+
 fill-range@^7.0.1:
   version "7.0.1"
   resolved "https://registry.yarnpkg.com/fill-range/-/fill-range-7.0.1.tgz#1919a6a7c75fe38b2c7c77e5198535da9acdda40"
@@ -2680,6 +3193,11 @@ function-bind@^1.1.1:
   resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.1.tgz#a56899d3ea3c9bab874bb9773b7c5ede92f4895d"
   integrity sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A==
 
+functional-red-black-tree@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/functional-red-black-tree/-/functional-red-black-tree-1.0.1.tgz#1b0ab3bd553b2a0d6399d29c0e3ea0b252078327"
+  integrity sha1-GwqzvVU7Kg1jmdKcDj6gslIHgyc=
+
 gauge@~2.7.3:
   version "2.7.4"
   resolved "https://registry.yarnpkg.com/gauge/-/gauge-2.7.4.tgz#2c03405c7538c39d7eb37b317022e325fb018bf7"
@@ -3012,6 +3530,13 @@ iconv-lite@0.4.24:
   dependencies:
     safer-buffer ">= 2.1.2 < 3"
 
+iconv-lite@^0.6.2:
+  version "0.6.3"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.6.3.tgz#a52f80bf38da1952eb5c681790719871a1a72501"
+  integrity sha512-4fCk79wshMdzMp2rH06qWrJE4iolqLhCUH+OiuIgU++RB0+94NlDL81atO7GX55uUKueo0txHNtvEyI6D7WdMw==
+  dependencies:
+    safer-buffer ">= 2.1.2 < 3.0.0"
+
 idna-uts46-hx@^2.3.1:
   version "2.3.1"
   resolved "https://registry.yarnpkg.com/idna-uts46-hx/-/idna-uts46-hx-2.3.1.tgz#a1dc5c4df37eee522bf66d969cc980e00e8711f9"
@@ -3024,6 +3549,11 @@ ieee754@^1.1.13:
   resolved "https://registry.yarnpkg.com/ieee754/-/ieee754-1.2.1.tgz#8eb7a10a63fff25d15a57b001586d177d1b0d352"
   integrity sha512-dcyqhDvX1C46lXZcVqCpK+FtMRQVdIMN6/Df5js2zouUsqG7I6sFxitIC+7KYK29KdXOLHdu9zL4sFnoVQnqaA==
 
+immediate@^3.2.3:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/immediate/-/immediate-3.3.0.tgz#1aef225517836bcdf7f2a2de2600c79ff0269266"
+  integrity sha512-HR7EVodfFUdQCTIeySw+WDRFJlPcLOJbXfwwZ7Oom6tjsvZ3bOkCDJHehQC3nxJrv7+f9XecwazynjU8e4Vw3Q==
+
 import-local@^3.0.2:
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/import-local/-/import-local-3.0.3.tgz#4d51c2c495ca9393da259ec66b62e022920211e0"
@@ -3045,7 +3575,7 @@ inflight@^1.0.4:
     once "^1.3.0"
     wrappy "1"
 
-inherits@2, inherits@2.0.4, inherits@^2.0.1, inherits@^2.0.3, inherits@^2.0.4, inherits@~2.0.3:
+inherits@2, inherits@2.0.4, inherits@^2.0.1, inherits@^2.0.3, inherits@^2.0.4, inherits@~2.0.1, inherits@~2.0.3:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.4.tgz#0fa2c64f932917c3433a0ded55363aae37416b7c"
   integrity sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==
@@ -3123,6 +3653,11 @@ is-extglob@^2.1.1:
   resolved "https://registry.yarnpkg.com/is-extglob/-/is-extglob-2.1.1.tgz#a88c02535791f02ed37c76a1b9ea9773c833f8c2"
   integrity sha1-qIwCU1eR8C7TfHahueqXc8gz+MI=
 
+is-fn@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-fn/-/is-fn-1.0.0.tgz#9543d5de7bcf5b08a22ec8a20bae6e286d510d8c"
+  integrity sha1-lUPV3nvPWwiiLsiiC65uKG1RDYw=
+
 is-fullwidth-code-point@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz#ef9e31386f031a7f0d643af82fde50c457ef00cb"
@@ -3214,7 +3749,7 @@ is-retry-allowed@^1.0.0:
   resolved "https://registry.yarnpkg.com/is-retry-allowed/-/is-retry-allowed-1.2.0.tgz#d778488bd0a4666a3be8a1482b9f2baafedea8b4"
   integrity sha512-RUbUeKwvm3XG2VYamhJL1xFktgjvPzL0Hq8C+6yrWIswDy3BIXGqCxhxkc30N9jqK311gVU137K8Ei55/zVJRg==
 
-is-stream@^1.0.0:
+is-stream@^1.0.0, is-stream@^1.0.1:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
   integrity sha1-EtSj3U5o4Lec6428hBc66A2RykQ=
@@ -3254,6 +3789,11 @@ is-typedarray@^1.0.0, is-typedarray@~1.0.0:
   resolved "https://registry.yarnpkg.com/is-typedarray/-/is-typedarray-1.0.0.tgz#e479c80858df0c1b11ddda6940f96011fcda4a9a"
   integrity sha1-5HnICFjfDBsR3dppQPlgEfzaSpo=
 
+isarray@0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/isarray/-/isarray-0.0.1.tgz#8a18acfca9a8f4177e09abfc6038939b05d1eedf"
+  integrity sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=
+
 isarray@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/isarray/-/isarray-1.0.0.tgz#bb935d48582cba168c06834957a54a3e07124f11"
@@ -3820,6 +4360,19 @@ json-buffer@3.0.0:
   resolved "https://registry.yarnpkg.com/json-buffer/-/json-buffer-3.0.0.tgz#5b1f397afc75d677bde8bcfc0e47e1f9a3d9a898"
   integrity sha1-Wx85evx11ne96Lz8Dkfh+aPZqJg=
 
+json-rpc-engine@^5.1.3:
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/json-rpc-engine/-/json-rpc-engine-5.4.0.tgz#75758609d849e1dba1e09021ae473f3ab63161e5"
+  integrity sha512-rAffKbPoNDjuRnXkecTjnsE3xLLrb00rEkdgalINhaYVYIxDwWtvYBr9UFbhTvPB1B2qUOLoFd/cV6f4Q7mh7g==
+  dependencies:
+    eth-rpc-errors "^3.0.0"
+    safe-event-emitter "^1.0.1"
+
+json-rpc-random-id@^1.0.0, json-rpc-random-id@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/json-rpc-random-id/-/json-rpc-random-id-1.0.1.tgz#ba49d96aded1444dbb8da3d203748acbbcdec8c8"
+  integrity sha1-uknZat7RRE27jaPSA3SKy7zeyMg=
+
 json-schema-traverse@^0.4.1:
   version "0.4.1"
   resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-0.4.1.tgz#69f6a87d9513ab8bb8fe63bdb0979c448e684660"
@@ -3830,6 +4383,13 @@ json-schema@0.2.3:
   resolved "https://registry.yarnpkg.com/json-schema/-/json-schema-0.2.3.tgz#b480c892e59a2f05954ce727bd3f2a4e882f9e13"
   integrity sha1-tIDIkuWaLwWVTOcnvT8qTogvnhM=
 
+json-stable-stringify@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/json-stable-stringify/-/json-stable-stringify-1.0.1.tgz#9a759d39c5f2ff503fd5300646ed445f88c4f9af"
+  integrity sha1-mnWdOcXy/1A/1TAGRu1EX4jE+a8=
+  dependencies:
+    jsonify "~0.0.0"
+
 json-stringify-safe@~5.0.1:
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/json-stringify-safe/-/json-stringify-safe-5.0.1.tgz#1296a2d58fd45f19a0f6ce01d65701e2c735b6eb"
@@ -3849,6 +4409,11 @@ jsonfile@^4.0.0:
   optionalDependencies:
     graceful-fs "^4.1.6"
 
+jsonify@~0.0.0:
+  version "0.0.0"
+  resolved "https://registry.yarnpkg.com/jsonify/-/jsonify-0.0.0.tgz#2c74b6ee41d93ca51b7b5aaee8f503631d252a73"
+  integrity sha1-LHS27kHZPKUbe1qu6PUDYx0lKnM=
+
 jsonwebtoken@^8.5.1:
   version "8.5.1"
   resolved "https://registry.yarnpkg.com/jsonwebtoken/-/jsonwebtoken-8.5.1.tgz#00e71e0b8df54c2121a1f26137df2280673bcc0d"
@@ -3918,6 +4483,56 @@ kleur@^3.0.3:
   resolved "https://registry.yarnpkg.com/kleur/-/kleur-3.0.3.tgz#a79c9ecc86ee1ce3fa6206d1216c501f147fc07e"
   integrity sha512-eTIzlVOSUR+JxdDFepEYcBMtZ9Qqdef+rnzWdRZuMbOywu5tO2w2N7rqjoANZ5k9vywhL6Br1VRjUIgTQx4E8w==
 
+level-codec@~7.0.0:
+  version "7.0.1"
+  resolved "https://registry.yarnpkg.com/level-codec/-/level-codec-7.0.1.tgz#341f22f907ce0f16763f24bddd681e395a0fb8a7"
+  integrity sha512-Ua/R9B9r3RasXdRmOtd+t9TCOEIIlts+TN/7XTT2unhDaL6sJn83S3rUyljbr6lVtw49N3/yA0HHjpV6Kzb2aQ==
+
+level-errors@^1.0.3:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/level-errors/-/level-errors-1.1.2.tgz#4399c2f3d3ab87d0625f7e3676e2d807deff404d"
+  integrity sha512-Sw/IJwWbPKF5Ai4Wz60B52yj0zYeqzObLh8k1Tk88jVmD51cJSKWSYpRyhVIvFzZdvsPqlH5wfhp/yxdsaQH4w==
+  dependencies:
+    errno "~0.1.1"
+
+level-errors@~1.0.3:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/level-errors/-/level-errors-1.0.5.tgz#83dbfb12f0b8a2516bdc9a31c4876038e227b859"
+  integrity sha512-/cLUpQduF6bNrWuAC4pwtUKA5t669pCsCi2XbmojG2tFeOr9j6ShtdDCtFFQO1DRt+EVZhx9gPzP9G2bUaG4ig==
+  dependencies:
+    errno "~0.1.1"
+
+level-iterator-stream@~1.3.0:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/level-iterator-stream/-/level-iterator-stream-1.3.1.tgz#e43b78b1a8143e6fa97a4f485eb8ea530352f2ed"
+  integrity sha1-5Dt4sagUPm+pek9IXrjqUwNS8u0=
+  dependencies:
+    inherits "^2.0.1"
+    level-errors "^1.0.3"
+    readable-stream "^1.0.33"
+    xtend "^4.0.0"
+
+level-ws@0.0.0:
+  version "0.0.0"
+  resolved "https://registry.yarnpkg.com/level-ws/-/level-ws-0.0.0.tgz#372e512177924a00424b0b43aef2bb42496d228b"
+  integrity sha1-Ny5RIXeSSgBCSwtDrvK7QkltIos=
+  dependencies:
+    readable-stream "~1.0.15"
+    xtend "~2.1.1"
+
+levelup@^1.2.1:
+  version "1.3.9"
+  resolved "https://registry.yarnpkg.com/levelup/-/levelup-1.3.9.tgz#2dbcae845b2bb2b6bea84df334c475533bbd82ab"
+  integrity sha512-VVGHfKIlmw8w1XqpGOAGwq6sZm2WwWLmlDcULkKWQXEA5EopA8OBNJ2Ck2v6bdk8HeEZSbCSEgzXadyQFm76sQ==
+  dependencies:
+    deferred-leveldown "~1.2.1"
+    level-codec "~7.0.0"
+    level-errors "~1.0.3"
+    level-iterator-stream "~1.3.0"
+    prr "~1.0.1"
+    semver "~5.4.1"
+    xtend "~4.0.0"
+
 leven@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/leven/-/leven-3.1.0.tgz#77891de834064cccba82ae7842bb6b14a13ed7f2"
@@ -3938,6 +4553,16 @@ locate-path@^5.0.0:
   dependencies:
     p-locate "^4.1.0"
 
+lodash.debounce@^4.0.8:
+  version "4.0.8"
+  resolved "https://registry.yarnpkg.com/lodash.debounce/-/lodash.debounce-4.0.8.tgz#82d79bff30a67c4005ffd5e2515300ad9ca4d7af"
+  integrity sha1-gteb/zCmfEAF/9XiUVMArZyk168=
+
+lodash.flatmap@^4.5.0:
+  version "4.5.0"
+  resolved "https://registry.yarnpkg.com/lodash.flatmap/-/lodash.flatmap-4.5.0.tgz#ef8cbf408f6e48268663345305c6acc0b778702e"
+  integrity sha1-74y/QI9uSCaGYzRTBcaswLd4cC4=
+
 lodash.includes@^4.3.0:
   version "4.3.0"
   resolved "https://registry.yarnpkg.com/lodash.includes/-/lodash.includes-4.3.0.tgz#60bb98a87cb923c68ca1e51325483314849f553f"
@@ -3978,7 +4603,7 @@ lodash.once@^4.0.0:
   resolved "https://registry.yarnpkg.com/lodash.once/-/lodash.once-4.1.1.tgz#0dd3971213c7c56df880977d504c88fb471a97ac"
   integrity sha1-DdOXEhPHxW34gJd9UEyI+0cal6w=
 
-lodash@^4.7.0:
+lodash@^4.17.14, lodash@^4.7.0:
   version "4.17.21"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
   integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
@@ -4000,6 +4625,11 @@ lru-cache@^6.0.0:
   dependencies:
     yallist "^4.0.0"
 
+ltgt@~2.2.0:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/ltgt/-/ltgt-2.2.1.tgz#f35ca91c493f7b73da0e07495304f17b31f87ee5"
+  integrity sha1-81ypHEk/e3PaDgdJUwTxezH4fuU=
+
 make-dir@^3.0.0, make-dir@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/make-dir/-/make-dir-3.1.0.tgz#415e967046b3a7f1d185277d84aa58203726a13f"
@@ -4033,6 +4663,18 @@ media-typer@0.3.0:
   resolved "https://registry.yarnpkg.com/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
   integrity sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g=
 
+memdown@^1.0.0:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/memdown/-/memdown-1.4.1.tgz#b4e4e192174664ffbae41361aa500f3119efe215"
+  integrity sha1-tOThkhdGZP+65BNhqlAPMRnv4hU=
+  dependencies:
+    abstract-leveldown "~2.7.1"
+    functional-red-black-tree "^1.0.1"
+    immediate "^3.2.3"
+    inherits "~2.0.1"
+    ltgt "~2.2.0"
+    safe-buffer "~5.1.1"
+
 memory-pager@^1.0.2:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/memory-pager/-/memory-pager-1.5.0.tgz#d8751655d22d384682741c972f2c3d6dfa3e66b5"
@@ -4048,6 +4690,20 @@ merge-stream@^2.0.0:
   resolved "https://registry.yarnpkg.com/merge-stream/-/merge-stream-2.0.0.tgz#52823629a14dd00c9770fb6ad47dc6310f2c1f60"
   integrity sha512-abv/qOcuPfk3URPfDzmZU1LKmuw8kT+0nIHvKrKgFrwifol/doWcdA4ZqsWQ8ENrFKkd67Mfpo/LovbIUsbt3w==
 
+merkle-patricia-tree@^2.1.2, merkle-patricia-tree@^2.3.2:
+  version "2.3.2"
+  resolved "https://registry.yarnpkg.com/merkle-patricia-tree/-/merkle-patricia-tree-2.3.2.tgz#982ca1b5a0fde00eed2f6aeed1f9152860b8208a"
+  integrity sha512-81PW5m8oz/pz3GvsAwbauj7Y00rqm81Tzad77tHBwU7pIAtN+TJnMSOJhxBKflSVYhptMMb9RskhqHqrSm1V+g==
+  dependencies:
+    async "^1.4.2"
+    ethereumjs-util "^5.0.0"
+    level-ws "0.0.0"
+    levelup "^1.2.1"
+    memdown "^1.0.0"
+    readable-stream "^2.0.0"
+    rlp "^2.0.0"
+    semaphore ">=1.0.1"
+
 methods@^1.1.2, methods@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/methods/-/methods-1.1.2.tgz#5529a4d67654134edcc5266656835b0f851afcee"
@@ -4381,11 +5037,19 @@ node-addon-api@^3.0.2:
   resolved "https://registry.yarnpkg.com/node-addon-api/-/node-addon-api-3.2.1.tgz#81325e0a2117789c0128dab65e7e38f07ceba161"
   integrity sha512-mmcei9JghVNDYydghQmeDX8KoAm0FAiYyIcUt/N4nhyAipB17pllZQDOJD2fotxABnt4Mdz+dKTO7eftLg4d0A==
 
-node-fetch@^2.6.1:
+node-fetch@2.6.1, node-fetch@^2.6.1:
   version "2.6.1"
   resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.1.tgz#045bd323631f76ed2e2b55573394416b639a0052"
   integrity sha512-V4aYg89jEoVRxRb2fJdAg8FHvI7cEyYdVAh94HH0UIK8oJxUfkjlDQN9RbMx+bEjP7+ggMiFRprSti032Oipxw==
 
+node-fetch@~1.7.1:
+  version "1.7.3"
+  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-1.7.3.tgz#980f6f72d85211a5347c6b2bc18c5b84c3eb47ef"
+  integrity sha512-NhZ4CsKx7cYm2vSrBAr2PvFOe6sWDf0UYLRqA6svUYg7+/TSfVAu49jYC4BvQ4Sms9SZgdqGBgroqfDhJdTyKQ==
+  dependencies:
+    encoding "^0.1.11"
+    is-stream "^1.0.1"
+
 node-gyp-build@^4.2.0:
   version "4.2.3"
   resolved "https://registry.yarnpkg.com/node-gyp-build/-/node-gyp-build-4.2.3.tgz#ce6277f853835f718829efb47db20f3e4d9c4739"
@@ -4478,6 +5142,11 @@ object-keys@^1.0.12, object-keys@^1.1.1:
   resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-1.1.1.tgz#1c47f272df277f3b1daf061677d9c82e2322c60e"
   integrity sha512-NuAESUOUMrlIXOfHKzD6bpPu3tYt3xvjNdRIQ+FeT0lNb4K8WR70CaDxhuNguS2XG+GjkyMwOzsN5ZktImfhLA==
 
+object-keys@~0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-0.4.0.tgz#28a6aae7428dd2c3a92f3d95f21335dd204e0336"
+  integrity sha1-KKaq50KN0sOpLz2V8hM13SBOAzY=
+
 object.assign@^4.1.2:
   version "4.1.2"
   resolved "https://registry.yarnpkg.com/object.assign/-/object.assign-4.1.2.tgz#0ed54a342eceb37b38ff76eb831a0e788cb63940"
@@ -4678,6 +5347,11 @@ picomatch@^2.0.4, picomatch@^2.2.1, picomatch@^2.2.3:
   resolved "https://registry.yarnpkg.com/picomatch/-/picomatch-2.3.0.tgz#f1f061de8f6a4bf022892e2d128234fb98302972"
   integrity sha512-lY1Q/PiJGC2zOv/z391WOTD+Z02bCgsFfvxoXXf6h7kv9o+WmsmzYqrAwY63sNgOxE4xEdq0WyUnXfKeBrSvYw==
 
+pify@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/pify/-/pify-3.0.0.tgz#e5a4acd2c101fdf3d9a4d07f0dbc4db49dd28176"
+  integrity sha1-5aSs0sEB/fPZpNB/DbxNtJ3SgXY=
+
 pirates@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/pirates/-/pirates-4.0.1.tgz#643a92caf894566f91b2b986d2c66950a8e2fb87"
@@ -4692,6 +5366,11 @@ pkg-dir@^4.2.0:
   dependencies:
     find-up "^4.0.0"
 
+precond@0.2:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/precond/-/precond-0.2.3.tgz#aa9591bcaa24923f1e0f4849d240f47efc1075ac"
+  integrity sha1-qpWRvKokkj8eD0hJ0kD0fvwQdaw=
+
 prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
@@ -4732,6 +5411,14 @@ process@^0.11.10:
   resolved "https://registry.yarnpkg.com/process/-/process-0.11.10.tgz#7332300e840161bda3e69a1d1d91a7d4bc16f182"
   integrity sha1-czIwDoQBYb2j5podHZGn1LwW8YI=
 
+promise-to-callback@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/promise-to-callback/-/promise-to-callback-1.0.0.tgz#5d2a749010bfb67d963598fcd3960746a68feef7"
+  integrity sha1-XSp0kBC/tn2WNZj805YHRqaP7vc=
+  dependencies:
+    is-fn "^1.0.0"
+    set-immediate-shim "^1.0.1"
+
 prompts@^2.0.1:
   version "2.4.2"
   resolved "https://registry.yarnpkg.com/prompts/-/prompts-2.4.2.tgz#7b57e73b3a48029ad10ebd44f74b01722a4cb069"
@@ -4748,6 +5435,11 @@ proxy-addr@~2.0.5:
     forwarded "0.2.0"
     ipaddr.js "1.9.1"
 
+prr@~1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/prr/-/prr-1.0.1.tgz#d3fc114ba06995a45ec6893f484ceb1d78f5f476"
+  integrity sha1-0/wRS6BplaRexok/SEzrHXj19HY=
+
 psl@^1.1.28, psl@^1.1.33:
   version "1.8.0"
   resolved "https://registry.yarnpkg.com/psl/-/psl-1.8.0.tgz#9326f8bcfb013adcc005fdff056acce020e51c24"
@@ -4844,7 +5536,17 @@ react-is@^17.0.1:
   resolved "https://registry.yarnpkg.com/react-is/-/react-is-17.0.2.tgz#e691d4a8e9c789365655539ab372762b0efb54f0"
   integrity sha512-w2GsyukL62IJnlaff/nRegPQR94C/XXamvMWmSHRJ4y7Ts/4ocGRmTHvOs8PSE6pB3dWOrD/nueuU5sduBsQ4w==
 
-readable-stream@^2.0.6, readable-stream@^2.3.5:
+readable-stream@^1.0.33:
+  version "1.1.14"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.1.14.tgz#7cf4c54ef648e3813084c636dd2079e166c081d9"
+  integrity sha1-fPTFTvZI44EwhMY23SB54WbAgdk=
+  dependencies:
+    core-util-is "~1.0.0"
+    inherits "~2.0.1"
+    isarray "0.0.1"
+    string_decoder "~0.10.x"
+
+readable-stream@^2.0.0, readable-stream@^2.0.6, readable-stream@^2.2.9, readable-stream@^2.3.5:
   version "2.3.7"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.7.tgz#1eca1cf711aef814c04f62252a36a62f6cb23b57"
   integrity sha512-Ebho8K4jIbHAxnuxi7o42OrZgF/ZTNcsZj6nRKyUmkhLFq8CHItp/fy6hQZuZmP/n3yZ9VBUbp4zz/mX8hmYPw==
@@ -4866,6 +5568,16 @@ readable-stream@^3.6.0:
     string_decoder "^1.1.1"
     util-deprecate "^1.0.1"
 
+readable-stream@~1.0.15:
+  version "1.0.34"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.0.34.tgz#125820e34bc842d2f2aaafafe4c2916ee32c157c"
+  integrity sha1-Elgg40vIQtLyqq+v5MKRbuMsFXw=
+  dependencies:
+    core-util-is "~1.0.0"
+    inherits "~2.0.1"
+    isarray "0.0.1"
+    string_decoder "~0.10.x"
+
 readdirp@~3.6.0:
   version "3.6.0"
   resolved "https://registry.yarnpkg.com/readdirp/-/readdirp-3.6.0.tgz#74a370bd857116e245b29cc97340cd431a02a6c7"
@@ -4873,12 +5585,17 @@ readdirp@~3.6.0:
   dependencies:
     picomatch "^2.2.1"
 
+regenerator-runtime@^0.13.4:
+  version "0.13.9"
+  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.13.9.tgz#8925742a98ffd90814988d7566ad30ca3b263b52"
+  integrity sha512-p3VT+cOEgxFsRRA9X4lkI1E+k2/CtnKtU4gcxyaCUreilL/vqI6CdZ3wxVUx3UOUg+gnUOQQcRI7BmSI656MYA==
+
 regexp-clone@1.0.0, regexp-clone@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/regexp-clone/-/regexp-clone-1.0.0.tgz#222db967623277056260b992626354a04ce9bf63"
   integrity sha512-TuAasHQNamyyJ2hb97IuBEif4qBHGjPHBS64sZwytpLEqtBQ1gPJTnOaQ6qmpET16cK14kkjbazl6+p0RRv0yw==
 
-request@^2.79.0:
+request@^2.79.0, request@^2.85.0:
   version "2.88.2"
   resolved "https://registry.yarnpkg.com/request/-/request-2.88.2.tgz#d73c918731cb5a87da047e207234146f664d12b3"
   integrity sha512-MsvtOrfG9ZcrOwAW+Qi+F6HbD0CWXEh9ou77uOb7FM2WPhwT7smM833PzanhJLsgXjN89Ir6V2PczXNnMpwKhw==
@@ -4931,7 +5648,7 @@ resolve.exports@^1.1.0:
   resolved "https://registry.yarnpkg.com/resolve.exports/-/resolve.exports-1.1.0.tgz#5ce842b94b05146c0e03076985d1d0e7e48c90c9"
   integrity sha512-J1l+Zxxp4XK3LUDZ9m60LRJF/mAe4z6a4xyabPHk7pvK5t35dACV32iIjJDFeWZFfZlO29w6SZ67knR0tHzJtQ==
 
-resolve@^1.0.0, resolve@^1.20.0:
+resolve@^1.0.0, resolve@^1.14.2, resolve@^1.20.0:
   version "1.20.0"
   resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.20.0.tgz#629a013fb3f70755d6f0b7935cc1c2c5378b1975"
   integrity sha512-wENBPt4ySzg4ybFQW2TT1zMQucPK95HSh/nq2CFTZVOGut2+pQvSsgtda4d26YrYcr067wjbmzOG8byDPBX63A==
@@ -4968,6 +5685,13 @@ ripemd160@^2.0.0, ripemd160@^2.0.1:
     hash-base "^3.0.0"
     inherits "^2.0.1"
 
+rlp@^2.0.0, rlp@^2.2.3:
+  version "2.2.7"
+  resolved "https://registry.yarnpkg.com/rlp/-/rlp-2.2.7.tgz#33f31c4afac81124ac4b283e2bd4d9720b30beaf"
+  integrity sha512-d5gdPmgQ0Z+AklL2NVXr/IoSjNZFfTVvQWzL/AM2AOcSzYP2xjlb0AC8YyCLc41MSNf6P6QVtjgPdmVtzb+4lQ==
+  dependencies:
+    bn.js "^5.2.0"
+
 rlp@^2.2.4:
   version "2.2.6"
   resolved "https://registry.yarnpkg.com/rlp/-/rlp-2.2.6.tgz#c80ba6266ac7a483ef1e69e8e2f056656de2fb2c"
@@ -4975,6 +5699,11 @@ rlp@^2.2.4:
   dependencies:
     bn.js "^4.11.1"
 
+rustbn.js@~0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/rustbn.js/-/rustbn.js-0.2.0.tgz#8082cb886e707155fd1cb6f23bd591ab8d55d0ca"
+  integrity sha512-4VlvkRUuCJvr2J6Y0ImW7NvTCriMi7ErOAqWk1y69vAdoNIzCF3yPmgeNzx+RQTLEDFq5sHfscn1MwHxP9hNfA==
+
 safe-buffer@5.1.2, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.2"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
@@ -4985,7 +5714,14 @@ safe-buffer@5.2.1, safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, s
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.1.tgz#1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6"
   integrity sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==
 
-"safer-buffer@>= 2.1.2 < 3", safer-buffer@^2.0.2, safer-buffer@^2.1.0, safer-buffer@~2.1.0:
+safe-event-emitter@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/safe-event-emitter/-/safe-event-emitter-1.0.1.tgz#5b692ef22329ed8f69fdce607e50ca734f6f20af"
+  integrity sha512-e1wFe99A91XYYxoQbcq2ZJUWurxEyP8vfz7A7vuUe1s95q8r5ebraVaA1BukYJcpM6V16ugWoD9vngi8Ccu5fg==
+  dependencies:
+    events "^3.0.0"
+
+"safer-buffer@>= 2.1.2 < 3", "safer-buffer@>= 2.1.2 < 3.0.0", safer-buffer@^2.0.2, safer-buffer@^2.1.0, safer-buffer@~2.1.0:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
   integrity sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==
@@ -5018,6 +5754,16 @@ secp256k1@^4.0.1:
     node-addon-api "^2.0.0"
     node-gyp-build "^4.2.0"
 
+semaphore@>=1.0.1, semaphore@^1.0.3:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/semaphore/-/semaphore-1.1.0.tgz#aaad8b86b20fe8e9b32b16dc2ee682a8cd26a8aa"
+  integrity sha512-O4OZEaNtkMd/K0i6js9SL+gqy0ZCBMgUvlSqHKi4IBdjhe7wB8pwztUk1BbZ1fmrvpwFrPbHzqd2w5pTcJH6LA==
+
+semver@7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-7.0.0.tgz#5f3ca35761e47e05b206c6daff2cf814f0316b8e"
+  integrity sha512-+GB6zVA9LWh6zovYQLALHwv5rb2PHGlJi3lfiqIHxR0uuwCgefcOJc59v9fv1w8GbStwxuuqqAjI9NMAOOgq1A==
+
 semver@7.x, semver@^7.3.2, semver@^7.3.4:
   version "7.3.5"
   resolved "https://registry.yarnpkg.com/semver/-/semver-7.3.5.tgz#0b621c879348d8998e4b0e4be94b3f12e6018ef7"
@@ -5030,11 +5776,16 @@ semver@^5.6.0:
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.7.1.tgz#a954f931aeba508d307bbf069eff0c01c96116f7"
   integrity sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==
 
-semver@^6.0.0, semver@^6.3.0:
+semver@^6.0.0, semver@^6.1.1, semver@^6.1.2, semver@^6.3.0:
   version "6.3.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.0.tgz#ee0a64c8af5e8ceea67687b133761e1becbd1d3d"
   integrity sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==
 
+semver@~5.4.1:
+  version "5.4.1"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-5.4.1.tgz#e059c09d8571f0540823733433505d3a2f00b18e"
+  integrity sha512-WfG/X9+oATh81XtllIo/I8gOiY9EXRdv1cQdyykeXK17YcUW3EXUAi2To4pcH6nZtJPr7ZOpM5OMyWJZm+8Rsg==
+
 send@0.17.1:
   version "0.17.1"
   resolved "https://registry.yarnpkg.com/send/-/send-0.17.1.tgz#c1d8b059f7900f7466dd4938bdc44e11ddb376c8"
@@ -5080,6 +5831,11 @@ set-blocking@~2.0.0:
   resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
   integrity sha1-BF+XgtARrppoA93TgrJDkrPYkPc=
 
+set-immediate-shim@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/set-immediate-shim/-/set-immediate-shim-1.0.1.tgz#4b2b1b27eb808a9f8dcc481a58e5e56f599f3f61"
+  integrity sha1-SysbJ+uAip+NzEgaWOXlb1mfP2E=
+
 setimmediate@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/setimmediate/-/setimmediate-1.0.5.tgz#290cbb232e306942d7d7ea9b83732ab7856f8285"
@@ -5341,6 +6097,11 @@ string_decoder@^1.1.1:
   dependencies:
     safe-buffer "~5.2.0"
 
+string_decoder@~0.10.x:
+  version "0.10.31"
+  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
+  integrity sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=
+
 string_decoder@~1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.1.1.tgz#9cf1611ba62685d7030ae9e4ba34149c3af03fc8"
@@ -5657,11 +6418,21 @@ tunnel-agent@^0.6.0:
   dependencies:
     safe-buffer "^5.0.1"
 
+tweetnacl-util@^0.15.0:
+  version "0.15.1"
+  resolved "https://registry.yarnpkg.com/tweetnacl-util/-/tweetnacl-util-0.15.1.tgz#b80fcdb5c97bcc508be18c44a4be50f022eea00b"
+  integrity sha512-RKJBIj8lySrShN4w6i/BonWp2Z/uxwC3h4y7xsRrpP59ZboCd0GpEVsOnMDYLMmKBpYhb5TgHzZXy7wTfYFBRw==
+
 tweetnacl@^0.14.3, tweetnacl@~0.14.0:
   version "0.14.5"
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
   integrity sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=
 
+tweetnacl@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-1.0.3.tgz#ac0af71680458d8a6378d0d0d050ab1407d35596"
+  integrity sha512-6rt+RN7aOi1nGMyC4Xa5DdYiukl2UWCbcJft7YhxReBGQD7OAM8Pbxw6YMo4r2diNEA8FEmu32YOn9rhaiE5yw==
+
 type-check@~0.3.2:
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/type-check/-/type-check-0.3.2.tgz#5884cab512cf1d355e3fb784f30804b2b520db72"
@@ -5772,7 +6543,7 @@ utf-8-validate@^5.0.2:
   dependencies:
     node-gyp-build "^4.2.0"
 
-utf8@3.0.0:
+utf8@3.0.0, utf8@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/utf8/-/utf8-3.0.0.tgz#f052eed1364d696e769ef058b183df88c87f69d1"
   integrity sha512-E8VjFIQ/TyQgp+TZfS6l8yp/xWppSAHzidGiRrqe4bK4XP9pTRyKFgGJpO3SN7zdX4DeomTrwaseCHovfpFcqQ==
@@ -6121,6 +6892,11 @@ whatwg-encoding@^1.0.5:
   dependencies:
     iconv-lite "0.4.24"
 
+whatwg-fetch@2.0.4:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/whatwg-fetch/-/whatwg-fetch-2.0.4.tgz#dde6a5df315f9d39991aa17621853d720b85566f"
+  integrity sha512-dcQ1GWpOD/eEQ97k66aiEVpNnapVj90/+R+SXTPYGHpYBBypfKJEQjLrvMZ7YXbKm21gXd4NcuxUTjiv1YtLng==
+
 whatwg-mimetype@^2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/whatwg-mimetype/-/whatwg-mimetype-2.3.0.tgz#3d4b1e0312d2079879f826aff18dbeeca5960fbf"
@@ -6223,6 +6999,13 @@ ws@^3.0.0:
     safe-buffer "~5.1.0"
     ultron "~1.1.0"
 
+ws@^5.1.1:
+  version "5.2.3"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-5.2.3.tgz#05541053414921bc29c63bee14b8b0dd50b07b3d"
+  integrity sha512-jZArVERrMsKUatIdnLzqvcfydI85dvd/Fp1u/VOpfdDWQ4c9qWXe+VIeAbQ5FrDwciAkr+lzofXLz3Kuf26AOA==
+  dependencies:
+    async-limiter "~1.0.0"
+
 ws@^7.4.6:
   version "7.5.5"
   resolved "https://registry.yarnpkg.com/ws/-/ws-7.5.5.tgz#8b4bc4af518cfabd0473ae4f99144287b33eb881"
@@ -6263,7 +7046,7 @@ xhr2-cookies@1.1.0:
   dependencies:
     cookiejar "^2.1.1"
 
-xhr@^2.0.4, xhr@^2.3.3:
+xhr@^2.0.4, xhr@^2.2.0, xhr@^2.3.3:
   version "2.6.0"
   resolved "https://registry.yarnpkg.com/xhr/-/xhr-2.6.0.tgz#b69d4395e792b4173d6b7df077f0fc5e4e2b249d"
   integrity sha512-/eCGLb5rxjx5e3mF1A7s+pLlR6CGyqWN91fv1JgER5mVWg1MZmlhBvy9kjcsOdRk8RrIujotWyJamfyrp+WIcA==
@@ -6293,11 +7076,18 @@ xmlhttprequest-ssl@~2.0.0:
   resolved "https://registry.yarnpkg.com/xmlhttprequest-ssl/-/xmlhttprequest-ssl-2.0.0.tgz#91360c86b914e67f44dce769180027c0da618c67"
   integrity sha512-QKxVRxiRACQcVuQEYFsI1hhkrMlrXHPegbbd1yn9UHOmRxY+si12nQYzri3vbzt8VdTTRviqcKxcyllFas5z2A==
 
-xtend@^4.0.0:
+xtend@^4.0.0, xtend@^4.0.1, xtend@~4.0.0:
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.2.tgz#bb72779f5fa465186b1f438f674fa347fdb5db54"
   integrity sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==
 
+xtend@~2.1.1:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/xtend/-/xtend-2.1.2.tgz#6efecc2a4dad8e6962c4901b337ce7ba87b5d28b"
+  integrity sha1-bv7MKk2tjmlixJAbM3znuoe10os=
+  dependencies:
+    object-keys "~0.4.0"
+
 y18n@^5.0.5:
   version "5.0.8"
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-5.0.8.tgz#7f4934d0f7ca8c56f95314939ddcd2dd91ce1d55"

From f68f80238016e4ea12ecd9d293d0ac29da68aed0 Mon Sep 17 00:00:00 2001
From: Aku-mi <bestor911@gmail.com>
Date: Mon, 22 Nov 2021 16:31:34 -0500
Subject: [PATCH 2/3] Truffle Networks

Rinkeby netword added and solidity version changed to 0.8.0
---
 .../src/contracts/CattleiaERC20.sol           |  2 +-
 .../src/contracts/CattleiaERC721.sol          |  2 +-
 cattleia-backend/src/contracts/Migrations.sol |  2 +-
 cattleia-backend/truffle-config.js            | 44 ++++++-------------
 4 files changed, 16 insertions(+), 34 deletions(-)

diff --git a/cattleia-backend/src/contracts/CattleiaERC20.sol b/cattleia-backend/src/contracts/CattleiaERC20.sol
index 33e47fd..b309a3f 100644
--- a/cattleia-backend/src/contracts/CattleiaERC20.sol
+++ b/cattleia-backend/src/contracts/CattleiaERC20.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.3;
+pragma solidity ^0.8.0;
 
 import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
 
diff --git a/cattleia-backend/src/contracts/CattleiaERC721.sol b/cattleia-backend/src/contracts/CattleiaERC721.sol
index f2c2698..37c8686 100644
--- a/cattleia-backend/src/contracts/CattleiaERC721.sol
+++ b/cattleia-backend/src/contracts/CattleiaERC721.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.3;
+pragma solidity ^0.8.0;
 
 import "@openzeppelin/contracts/token/ERC721/presets/ERC721PresetMinterPauserAutoId.sol";
 
diff --git a/cattleia-backend/src/contracts/Migrations.sol b/cattleia-backend/src/contracts/Migrations.sol
index b6aec47..fcbf5cb 100644
--- a/cattleia-backend/src/contracts/Migrations.sol
+++ b/cattleia-backend/src/contracts/Migrations.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.3;
+pragma solidity ^0.8.0;
 
 contract Migrations {
     address public owner = msg.sender;
diff --git a/cattleia-backend/truffle-config.js b/cattleia-backend/truffle-config.js
index 9ab2fc8..63edf8f 100644
--- a/cattleia-backend/truffle-config.js
+++ b/cattleia-backend/truffle-config.js
@@ -1,6 +1,7 @@
-// require("dotenv").config();
-// const HDWalletProvider = require("@truffle/hdwallet-provider");
-// const mnemonic = process.env.TRUFFLE_KEY.trim();
+require("dotenv").config();
+const HDWalletProvider = require("@truffle/hdwallet-provider");
+const mnemonic = process.env.TRUFFLE_KEY.trim();
+const rinkebyEndpoint = process.env.INFURA_RINKEBY;
 
 module.exports = {
   contracts_directory: "./src/contracts",
@@ -13,31 +14,14 @@ module.exports = {
       port: 7545, // Standard Ethereum port (default: none)
       network_id: "*", // Any network (default: none)
     },
-    // Another network with more advanced options...
-    // advanced: {
-    // port: 8777,             // Custom port
-    // network_id: 1342,       // Custom network
-    // gas: 8500000,           // Gas sent with each transaction (default: ~6700000)
-    // gasPrice: 20000000000,  // 20 gwei (in wei) (default: 100 gwei)
-    // from: <address>,        // Account to send txs from (default: accounts[0])
-    // websocket: true        // Enable EventEmitter interface for web3 (default: false)
-    // },
-    // Useful for deploying to a public network.
-    // NB: It's important to wrap the provider as a function.
-    // ropsten: {
-    // provider: () => new HDWalletProvider(mnemonic, `https://ropsten.infura.io/v3/YOUR-PROJECT-ID`),
-    // network_id: 3,       // Ropsten's id
-    // gas: 5500000,        // Ropsten has a lower block limit than mainnet
-    // confirmations: 2,    // # of confs to wait between deployments. (default: 0)
-    // timeoutBlocks: 200,  // # of blocks before a deployment times out  (minimum/default: 50)
-    // skipDryRun: true     // Skip dry run before migrations? (default: false for public nets )
-    // },
-    // Useful for private networks
-    // private: {
-    // provider: () => new HDWalletProvider(mnemonic, `https://network.io`),
-    // network_id: 2111,   // This network is yours, in the cloud.
-    // production: true    // Treats this network as if it was a public net. (default: false)
-    // }
+    rinkeby: {
+      provider: function () {
+        return new HDWalletProvider(mnemonic, rinkebyEndpoint);
+      },
+      network_id: 4,
+      gas: 4500000,
+      gasPrice: 10000000000,
+    },
   },
 
   // Set default mocha options here, use special reporters etc.
@@ -48,14 +32,12 @@ module.exports = {
   // Configure your compilers
   compilers: {
     solc: {
-      version: "0.8.3", // Fetch exact version from solc-bin (default: truffle's version)
+      version: "0.8.0", // Fetch exact version from solc-bin (default: truffle's version)
       settings: {
-        // See the solidity docs for advice about optimization and evmVersion
         optimizer: {
           enabled: false,
           runs: 200,
         },
-        // evmVersion: "byzantium"
       },
     },
   },

From 718fd1fe27b7c5b5d9832e68610221a0ab15179b Mon Sep 17 00:00:00 2001
From: Aku-mi <bestor911@gmail.com>
Date: Mon, 22 Nov 2021 22:52:03 -0500
Subject: [PATCH 3/3] NFT Metadata

API endpoint for NFTs metadata now available.
Also tests were refactored and some corrections were made in base of the
result of them.
---
 .../src/controllers/admin.controller.ts       | 65 +++++++++++++--
 .../src/controllers/auth.controller.ts        | 18 +---
 .../src/controllers/index.controller.ts       |  5 +-
 cattleia-backend/src/controllers/index.ts     |  1 +
 .../src/controllers/nft.controller.ts         | 26 ++++++
 cattleia-backend/src/libs/errors.ts           | 10 ++-
 cattleia-backend/src/libs/interfaces.ts       | 15 ++++
 cattleia-backend/src/middlewares/index.ts     | 13 +++
 cattleia-backend/src/models/index.ts          |  1 +
 cattleia-backend/src/models/meta.ts           | 40 +++++++++
 cattleia-backend/src/routes/admin.routes.ts   |  8 +-
 cattleia-backend/src/routes/index.routes.ts   |  5 +-
 cattleia-backend/src/routes/nft.routes.ts     |  8 ++
 cattleia-backend/src/test/jest/admin.spec.ts  | 82 ++++++++++++++++++-
 cattleia-backend/src/test/jest/auth.spec.ts   |  2 +
 cattleia-backend/src/test/jest/helper.ts      | 53 ++++++++++++
 cattleia-backend/src/test/jest/index.spec.ts  | 52 +++++++++++-
 cattleia-backend/src/test/jest/nft.spec.ts    | 43 ++++++++++
 .../src/test/jest/payment.spec.ts             |  4 +
 cattleia-backend/src/test/jest/web3.spec.ts   |  4 +-
 20 files changed, 422 insertions(+), 33 deletions(-)
 create mode 100644 cattleia-backend/src/controllers/nft.controller.ts
 create mode 100644 cattleia-backend/src/models/meta.ts
 create mode 100644 cattleia-backend/src/routes/nft.routes.ts
 create mode 100644 cattleia-backend/src/test/jest/nft.spec.ts

diff --git a/cattleia-backend/src/controllers/admin.controller.ts b/cattleia-backend/src/controllers/admin.controller.ts
index f2513e5..82bf883 100644
--- a/cattleia-backend/src/controllers/admin.controller.ts
+++ b/cattleia-backend/src/controllers/admin.controller.ts
@@ -1,12 +1,65 @@
 import { Request, Response } from "express";
-import { errors } from "../libs";
+import { errors, Meta } from "../libs";
+import { MetaModel } from "../models";
 
-export const admin = async (req: Request, res: Response): Promise<Response> => {
-  if (req.role !== "admin")
-    return res.status(401).json({
+export const admin = (_req: Request, res: Response): Response => {
+  return res.json({ ok: true, msg: "admin" });
+};
+
+export const addMeta = async (
+  req: Request<any, any, Meta>,
+  res: Response
+): Promise<Response> => {
+  const { attributes, description, external_url, image, name, nft } = req.body;
+
+  const found = await MetaModel.findOne({ nft });
+
+  console.log(req.body);
+
+  if (found) {
+    return res.status(400).json({
+      ok: false,
+      error: errors.metadataAlreadyExist,
+    });
+  }
+
+  const meta = new MetaModel({
+    attributes,
+    description,
+    external_url,
+    nft,
+    image,
+    name,
+  });
+
+  await meta.save();
+
+  return res.json({ ok: true });
+};
+
+export const editMeta = async (
+  req: Request<any, any, Meta>,
+  res: Response
+): Promise<Response> => {
+  const { id: nft } = req.params;
+  const { attributes, description, external_url, image, name } = req.body;
+
+  const found = await MetaModel.findOne({ nft });
+
+  if (!found) {
+    return res.status(404).json({
       ok: false,
-      error: errors.noAdmin,
+      error: errors.metadataDoesntExist,
     });
+  }
+
+  found.name = name;
+  found.description = description;
+  found.image = image;
+  found.external_url = external_url;
+  found.attributes = attributes;
+
+  await found.save();
 
-  return res.json({ msg: "admin" });
+  return res.json({ ok: true });
 };
diff --git a/cattleia-backend/src/controllers/auth.controller.ts b/cattleia-backend/src/controllers/auth.controller.ts
index 2d15155..12b4a61 100644
--- a/cattleia-backend/src/controllers/auth.controller.ts
+++ b/cattleia-backend/src/controllers/auth.controller.ts
@@ -129,20 +129,10 @@ export const signUp = async (
 
     _user.rank = _ranks[0];
 
-    let balance = "";
-
-    let address = "";
-
-    if (_user.account.payload) {
-      const balanceWeis = await web3.eth.getBalance(
-        _user.account.payload.address
-      );
-      balance = web3.utils.fromWei(balanceWeis, "ether");
-      address = _user.account.payload.address;
-    }
-
     await _user.save();
 
+    res.cookie("jid", createRefreshToken(_user), cookieConf);
+
     return res.json({
       ok: true,
       user: {
@@ -152,8 +142,8 @@ export const signUp = async (
         role: _user.role.name,
         account: {
           hasAccount: false,
-          balance,
-          address,
+          balance: "",
+          address: "",
         },
         rank: {
           color: rankColor(_user.rank.name),
diff --git a/cattleia-backend/src/controllers/index.controller.ts b/cattleia-backend/src/controllers/index.controller.ts
index e435a6a..2c341de 100644
--- a/cattleia-backend/src/controllers/index.controller.ts
+++ b/cattleia-backend/src/controllers/index.controller.ts
@@ -23,6 +23,7 @@ export const refreshToken = async (
   res: Response
 ): Promise<Response> => {
   const token = req.cookies.jid;
+
   if (!token)
     return res.status(400).json({
       ok: false,
@@ -39,7 +40,7 @@ export const refreshToken = async (
     res.cookie("jid", createRefreshToken(user), cookieConf);
     return res.json({
       ok: true,
-      accessToken: createAcessToken(user),
+      token: createAcessToken(user),
     });
   } catch (error) {
     return res.status(400).json({
@@ -58,7 +59,7 @@ export const revokeRefreshTokens = async (
   if (!user)
     return res.status(400).json({
       ok: false,
-      error: errors.invalidIDorNoWallet(id),
+      error: errors.invalidID(id),
     });
 
   user.tokenVersion += 1;
diff --git a/cattleia-backend/src/controllers/index.ts b/cattleia-backend/src/controllers/index.ts
index b9e5d1f..92703b7 100644
--- a/cattleia-backend/src/controllers/index.ts
+++ b/cattleia-backend/src/controllers/index.ts
@@ -1,4 +1,5 @@
 export * from "./index.controller";
+export * from "./nft.controller";
 export * from "./auth.controller";
 export * from "./admin.controller";
 export * from "./payment.controller";
diff --git a/cattleia-backend/src/controllers/nft.controller.ts b/cattleia-backend/src/controllers/nft.controller.ts
new file mode 100644
index 0000000..ae97947
--- /dev/null
+++ b/cattleia-backend/src/controllers/nft.controller.ts
@@ -0,0 +1,26 @@
+import { Request, Response } from "express";
+import { errors } from "../libs";
+import { MetaModel } from "../models";
+
+export const metadata = async (
+  req: Request,
+  res: Response
+): Promise<Response> => {
+  const { id } = req.params;
+
+  const meta = await MetaModel.findOne({ nft: id });
+
+  if (!meta)
+    return res.status(404).json({
+      ok: false,
+      error: errors.metadataDoesntExist,
+    });
+
+  return res.json({
+    name: meta.name,
+    description: meta.description,
+    image: meta.image,
+    external_url: meta.external_url,
+    attributes: meta.attributes,
+  });
+};
diff --git a/cattleia-backend/src/libs/errors.ts b/cattleia-backend/src/libs/errors.ts
index f7a18fa..d740d74 100644
--- a/cattleia-backend/src/libs/errors.ts
+++ b/cattleia-backend/src/libs/errors.ts
@@ -2,7 +2,7 @@ export interface Stacked {
   message: string;
   code: number;
 }
-
+/* istanbul ignore next */
 export const errorStack = (stack: Stacked[], e: Error) => {
   if (
     e.message.includes("is invalid, the capitalization checksum test failed")
@@ -28,6 +28,14 @@ export const errors = {
     message: "Invalid role.",
     code: 8020,
   },
+  metadataAlreadyExist: {
+    message: "The metadata for this NFT already exist.",
+    code: 7001,
+  },
+  metadataDoesntExist: {
+    message: "The metadata for this NFT doesn't exist.",
+    code: 7004,
+  },
   invalidAmount: {
     message: "Invalid amount, must be greater than 0.5$",
     code: 6060,
diff --git a/cattleia-backend/src/libs/interfaces.ts b/cattleia-backend/src/libs/interfaces.ts
index 2038a8b..39e8c52 100644
--- a/cattleia-backend/src/libs/interfaces.ts
+++ b/cattleia-backend/src/libs/interfaces.ts
@@ -44,3 +44,18 @@ export interface Payload {
   iat: number;
   exp: number;
 }
+
+interface Traits {
+  display_types?: string;
+  trait_type: string;
+  value: string | number;
+}
+
+export interface Meta extends Document {
+  nft: string;
+  name: string;
+  description: string;
+  image?: string;
+  external_url?: string;
+  attributes?: Traits[];
+}
diff --git a/cattleia-backend/src/middlewares/index.ts b/cattleia-backend/src/middlewares/index.ts
index 1409038..9194822 100644
--- a/cattleia-backend/src/middlewares/index.ts
+++ b/cattleia-backend/src/middlewares/index.ts
@@ -37,3 +37,16 @@ export const validateToken = (
   }
   next();
 };
+
+export const validateAdmin = (
+  req: Request,
+  res: Response,
+  next: NextFunction
+) => {
+  if (req.role !== "admin")
+    return res.status(401).json({
+      ok: false,
+      error: errors.noAdmin,
+    });
+  next();
+};
diff --git a/cattleia-backend/src/models/index.ts b/cattleia-backend/src/models/index.ts
index fca9a86..ab0a503 100644
--- a/cattleia-backend/src/models/index.ts
+++ b/cattleia-backend/src/models/index.ts
@@ -1,4 +1,5 @@
 export * from "./role";
 export * from "./rank";
+export * from "./meta";
 export * from "./user";
 export * from "./account";
diff --git a/cattleia-backend/src/models/meta.ts b/cattleia-backend/src/models/meta.ts
new file mode 100644
index 0000000..77d8dc4
--- /dev/null
+++ b/cattleia-backend/src/models/meta.ts
@@ -0,0 +1,40 @@
+import { Schema, model } from "mongoose";
+import { Meta } from "../libs";
+
+const metaSchema: Schema = new Schema(
+  {
+    nft: {
+      type: String,
+      required: true,
+      unique: true,
+    },
+
+    name: {
+      type: String,
+      required: true,
+    },
+
+    description: {
+      type: String,
+      required: true,
+    },
+
+    image: {
+      type: String,
+    },
+
+    external_url: {
+      type: String,
+    },
+
+    attributes: {
+      type: [Object],
+    },
+  },
+  {
+    timestamps: false,
+    versionKey: false,
+  }
+);
+
+export const MetaModel = model<Meta>("Meta", metaSchema);
diff --git a/cattleia-backend/src/routes/admin.routes.ts b/cattleia-backend/src/routes/admin.routes.ts
index 7d24f9f..1a66838 100644
--- a/cattleia-backend/src/routes/admin.routes.ts
+++ b/cattleia-backend/src/routes/admin.routes.ts
@@ -1,9 +1,11 @@
 import { Router } from "express";
-import { validateToken } from "../middlewares";
-import { admin } from "../controllers";
+import { validateAdmin, validateToken } from "../middlewares";
+import { addMeta, admin, editMeta } from "../controllers";
 
 const router = Router();
 
-router.get("/", validateToken, admin);
+router.get("/", validateToken, validateAdmin, admin);
+router.post("/add-meta", validateToken, validateAdmin, addMeta);
+router.put("/edit-meta/:id", validateToken, validateAdmin, editMeta);
 
 export default router;
diff --git a/cattleia-backend/src/routes/index.routes.ts b/cattleia-backend/src/routes/index.routes.ts
index 7f1da8e..9d31b5b 100644
--- a/cattleia-backend/src/routes/index.routes.ts
+++ b/cattleia-backend/src/routes/index.routes.ts
@@ -1,10 +1,11 @@
-import { Router } from "express";
+import nft from "./nft.routes";
 import auth from "./auth.routes";
 import admin from "./admin.routes";
 import web3 from "./web3.routes";
 import payment from "./payment.routes";
 import { index, refreshToken, revokeRefreshTokens } from "../controllers";
 import { validateToken } from "../middlewares";
+import { Router } from "express";
 
 const router = Router();
 
@@ -14,6 +15,8 @@ router.post("/refresh_token", refreshToken);
 
 router.post("/revoke_token", validateToken, revokeRefreshTokens);
 
+router.use("/nft", nft);
+
 router.use("/auth", auth);
 
 router.use("/admin", admin);
diff --git a/cattleia-backend/src/routes/nft.routes.ts b/cattleia-backend/src/routes/nft.routes.ts
new file mode 100644
index 0000000..4458803
--- /dev/null
+++ b/cattleia-backend/src/routes/nft.routes.ts
@@ -0,0 +1,8 @@
+import { Router } from "express";
+import { metadata } from "../controllers";
+
+const router = Router();
+
+router.get("/metadata/:id", metadata);
+
+export default router;
diff --git a/cattleia-backend/src/test/jest/admin.spec.ts b/cattleia-backend/src/test/jest/admin.spec.ts
index d276537..e897058 100644
--- a/cattleia-backend/src/test/jest/admin.spec.ts
+++ b/cattleia-backend/src/test/jest/admin.spec.ts
@@ -1,16 +1,31 @@
 import mongoose from "mongoose";
 import { connect } from "../../database";
 import { errors } from "../../libs";
-import { api } from "./helper";
+import { MetaModel, UserModel } from "../../models";
+import {
+  api,
+  gettWithToken,
+  meta,
+  postWithToken,
+  putWithToken,
+  user,
+} from "./helper";
+
+jest.setTimeout(30000);
 
 beforeAll(async () => {
   await connect();
+  await MetaModel.deleteMany({});
 });
 
-afterEach(async () => {
+afterAll(async () => {
   await mongoose.connection.close(true);
 });
 
+beforeEach(async () => {
+  await UserModel.deleteMany({});
+});
+
 describe("GET /api/v1/admin", () => {
   test("should response with no token error.", async () => {
     const res = await api.get("/api/v1/admin");
@@ -18,4 +33,67 @@ describe("GET /api/v1/admin", () => {
     expect(res.body.error.message).toEqual(errors.noAuthToken.message);
     expect(res.body.error.code).toEqual(errors.noAuthToken.code);
   });
+
+  test("should respond with no admin error.", async () => {
+    const { res } = await gettWithToken("/auth/sign-up", "/admin", user);
+    expect(res.body.ok).toEqual(false);
+    expect(res.body.error.message).toEqual(errors.noAdmin.message);
+    expect(res.body.error.code).toEqual(errors.noAdmin.code);
+  });
+
+  test("should respond with admin msg.", async () => {
+    const { res } = await gettWithToken("/auth/sign-up", "/admin", {
+      ...user,
+      role: "admin",
+    });
+    expect(res.body.ok).toEqual(true);
+    expect(res.body.msg).toEqual("admin");
+  });
+});
+
+describe("POST /api/v1/admin/add-meta", () => {
+  test("should be able to add metadata.", async () => {
+    const { res } = await postWithToken(
+      "/auth/sign-up",
+      "/admin/add-meta",
+      { ...user, role: "admin" },
+      meta
+    );
+    expect(res.body.ok).toEqual(true);
+  });
+  test("should respond with metadata exist error.", async () => {
+    const { res } = await postWithToken(
+      "/auth/sign-up",
+      "/admin/add-meta",
+      { ...user, role: "admin" },
+      meta
+    );
+    expect(res.status).toBe(400);
+    expect(res.body.ok).toEqual(false);
+    expect(res.body.error.message).toEqual(errors.metadataAlreadyExist.message);
+    expect(res.body.error.code).toEqual(errors.metadataAlreadyExist.code);
+  });
+});
+
+describe("PUT /api/v1/admin/edit-meta", () => {
+  test("should respond with no metadata error.", async () => {
+    const { res } = await putWithToken(
+      "/auth/sign-up",
+      "/admin/edit-meta/10",
+      { ...user, role: "admin" },
+      meta
+    );
+    expect(res.body.ok).toEqual(false);
+    expect(res.body.error.message).toEqual(errors.metadataDoesntExist.message);
+    expect(res.body.error.code).toEqual(errors.metadataDoesntExist.code);
+  });
+  test("should be able to edit metadata.", async () => {
+    const { res } = await putWithToken(
+      "/auth/sign-up",
+      "/admin/edit-meta/0",
+      { ...user, role: "admin" },
+      meta
+    );
+    expect(res.body.ok).toEqual(true);
+  });
 });
diff --git a/cattleia-backend/src/test/jest/auth.spec.ts b/cattleia-backend/src/test/jest/auth.spec.ts
index 7dd01eb..afa27ca 100644
--- a/cattleia-backend/src/test/jest/auth.spec.ts
+++ b/cattleia-backend/src/test/jest/auth.spec.ts
@@ -4,6 +4,8 @@ import { api, user, user2 } from "./helper";
 import { UserModel } from "../../models";
 import { connect } from "../../database";
 
+jest.setTimeout(20000);
+
 beforeAll(async () => {
   await connect();
 });
diff --git a/cattleia-backend/src/test/jest/helper.ts b/cattleia-backend/src/test/jest/helper.ts
index 792b672..574e963 100644
--- a/cattleia-backend/src/test/jest/helper.ts
+++ b/cattleia-backend/src/test/jest/helper.ts
@@ -27,6 +27,25 @@ export const user3 = {
   password: "1234",
 };
 
+export const meta = {
+  nft: "0",
+  name: "NFT Name",
+  description: "Meta description",
+  image: "http://some-uri/image.png",
+  external_url: "http://external.com",
+  attributes: [
+    {
+      trait_type: "level",
+      value: 5,
+    },
+    {
+      display_type: "boost_number",
+      trait_type: "aqua power",
+      value: 40,
+    },
+  ],
+};
+
 export const invalidToken = async (
   url: string,
   token: boolean
@@ -61,3 +80,37 @@ export const postWithToken = async (
     res1,
   };
 };
+
+export const putWithToken = async (
+  url1: string,
+  url2: string,
+  data1: object,
+  data2: object
+): Promise<{ res: request.Response; res1: request.Response }> => {
+  const res1 = await api.post(baseUrl + url1).send(data1);
+  const res = await api
+    .put(baseUrl + url2)
+    .set({ Authorization: `bearer ${res1.body.user.token}` })
+    .send(data2);
+
+  return {
+    res,
+    res1,
+  };
+};
+
+export const gettWithToken = async (
+  url1: string,
+  url2: string,
+  data1: object
+): Promise<{ res: request.Response; res1: request.Response }> => {
+  const res1 = await api.post(baseUrl + url1).send(data1);
+  const res = await api
+    .get(baseUrl + url2)
+    .set({ Authorization: `bearer ${res1.body.user.token}` });
+
+  return {
+    res,
+    res1,
+  };
+};
diff --git a/cattleia-backend/src/test/jest/index.spec.ts b/cattleia-backend/src/test/jest/index.spec.ts
index dbf0cad..74f6695 100644
--- a/cattleia-backend/src/test/jest/index.spec.ts
+++ b/cattleia-backend/src/test/jest/index.spec.ts
@@ -1,13 +1,21 @@
 import mongoose from "mongoose";
-import { api, app } from "./helper";
+import { api, app, postWithToken, simplePost, user } from "./helper";
 import { wsrequest } from "wsreq";
 import { connect } from "../../database";
+import { errors } from "../../libs";
+import { UserModel } from "../../models";
+
+jest.setTimeout(20000);
 
 beforeAll(async () => {
   await connect();
 });
 
-afterEach(async () => {
+beforeEach(async () => {
+  await UserModel.deleteMany({});
+});
+
+afterAll(async () => {
   await mongoose.connection.close(true);
 });
 
@@ -41,3 +49,43 @@ describe("WS /api/v1/ws", () => {
     conn.close();
   });
 });
+
+describe("POST /api/v1/refresh_token", () => {
+  test("should respond with no token error.", async () => {
+    const res = await simplePost("/refresh_token", {});
+    expect(res.body.ok).toEqual(false);
+    expect(res.body.error.message).toEqual(errors.noAuthToken.message);
+    expect(res.body.error.code).toEqual(errors.noAuthToken.code);
+  });
+  test("should respond with invalid token error.", async () => {
+    const res = await api
+      .post("/api/v1/refresh_token")
+      .set("Cookie", ["jid=invalid"])
+      .send({});
+    expect(res.body.ok).toEqual(false);
+    expect(res.body.error.message).toEqual(errors.invalidAuthToken.message);
+    expect(res.body.error.code).toEqual(errors.invalidAuthToken.code);
+  });
+  test("should respond with token.", async () => {
+    const res1 = await api.post("/api/v1/auth/sign-up").send(user);
+    const jid = (res1.headers["set-cookie"][0] as string).split(";")[0];
+    const res = await api
+      .post("/api/v1/refresh_token")
+      .set("Cookie", [jid])
+      .send({});
+    expect(res.body.ok).toEqual(true);
+    expect(res.body.token).toBeDefined();
+  });
+});
+
+describe("POST /api/v1/revoke_token", () => {
+  test("should respond with ok.", async () => {
+    const { res } = await postWithToken(
+      "/auth/sign-up",
+      "/revoke_token",
+      user,
+      {}
+    );
+    expect(res.body.ok).toEqual(true);
+  });
+});
diff --git a/cattleia-backend/src/test/jest/nft.spec.ts b/cattleia-backend/src/test/jest/nft.spec.ts
new file mode 100644
index 0000000..b394dd1
--- /dev/null
+++ b/cattleia-backend/src/test/jest/nft.spec.ts
@@ -0,0 +1,43 @@
+import mongoose from "mongoose";
+import { connect } from "../../database";
+import { errors } from "../../libs";
+import { MetaModel, UserModel } from "../../models";
+import { api, meta, postWithToken, user } from "./helper";
+
+jest.setTimeout(20000);
+
+beforeAll(async () => {
+  await connect();
+});
+
+afterAll(async () => {
+  await mongoose.connection.close(true);
+});
+
+beforeEach(async () => {
+  await UserModel.deleteMany({});
+  await MetaModel.deleteMany({});
+});
+
+describe("GET /api/v1/nft/metadata", () => {
+  test("should respond with no metadata error.", async () => {
+    const res = await api.get("/api/v1/nft/metadata/0");
+    expect(res.status).toBe(404);
+    expect(res.body.ok).toEqual(false);
+    expect(res.body.error.message).toEqual(errors.metadataDoesntExist.message);
+    expect(res.body.error.code).toEqual(errors.metadataDoesntExist.code);
+  });
+  test("should respond with metadata.", async () => {
+    await postWithToken(
+      "/auth/sign-up",
+      "/admin/add-meta",
+      { ...user, role: "admin" },
+      meta
+    );
+    const res = await api.get("/api/v1/nft/metadata/0");
+    const should = { ...meta };
+    //@ts-ignore
+    delete should.nft;
+    expect(res.body).toEqual(should);
+  });
+});
diff --git a/cattleia-backend/src/test/jest/payment.spec.ts b/cattleia-backend/src/test/jest/payment.spec.ts
index d52a57f..41e31ff 100644
--- a/cattleia-backend/src/test/jest/payment.spec.ts
+++ b/cattleia-backend/src/test/jest/payment.spec.ts
@@ -4,6 +4,8 @@ import { connect } from "../../database";
 import { errors } from "../../libs";
 import { api } from "./helper";
 
+jest.setTimeout(20000);
+
 beforeAll(async () => {
   await connect();
 });
@@ -12,6 +14,8 @@ afterAll(async () => {
   await mongoose.connection.close(true);
 });
 
+jest.setTimeout(20000);
+
 describe("GET /api/v1/payment/get-publishable-key", () => {
   test("should respond with a stripe publishableKey.", async () => {
     const res = await api.get("/api/v1/payment/get-publishable-key");
diff --git a/cattleia-backend/src/test/jest/web3.spec.ts b/cattleia-backend/src/test/jest/web3.spec.ts
index 5e2545b..d5e76c4 100644
--- a/cattleia-backend/src/test/jest/web3.spec.ts
+++ b/cattleia-backend/src/test/jest/web3.spec.ts
@@ -11,6 +11,8 @@ import {
   simplePost,
 } from "./helper";
 
+jest.setTimeout(35000);
+
 beforeAll(async () => {
   await connect();
   await AccountModel.deleteMany({});
@@ -222,8 +224,6 @@ describe("POST /api/v1/web3/get-key", () => {
   });
 });
 
-jest.setTimeout(30000);
-
 describe("POST /api/v1/web3/transfer-to", () => {
   test("shouldn't be able to transfer eth (token error).", async () => {
     const res = await invalidToken("/web3/transfer-to", true);