SORA - Subquery

Introduction

SORA and subquery.network integration project, implementing the convenient acquisition of the following network entities:

• XYK Pools
• Transfers
• Swaps
• Liquidity pools operations
  • Deposits
  • Removals
• Iroha migrations

Query

Environment

• Typescript are required to compile project and define types.

• Both SubQuery CLI and generated Project have dependencies and require Node.

Install the SubQuery CLI

Install SubQuery CLI globally on your terminal by using Yarn or NPM:

npm install -g @subql/cli
yarn global add @subql/cli

Run help to see available commands and usage provide by CLI

subql help

Initialize the starter package

Inside the directory in which you want to create the SubQuery project, simply replace project-name with your project name and run the command:

subql init --starter project-name

Then you should see a folder with your project name has been created inside the directory, you can use this as the start point of your project. Last, under the project directory, run following command to install all the dependency.

yarn install

Configure your project

In the starter package, we have provided a simple example of project configuration. You will be mainly working on the following files:

• The Manifest in project.yaml
• The GraphQL Schema in schema.graphql
• The Mapping functions in src/mappings/ directory

For more information on how to write the SubQuery, check out our doc section on Define the SubQuery

Code generation

In order to index your SubQuery project, it is mandatory to build your project first. Run this command under the project directory.

yarn codegen

Build the project

In order to deploy your SubQuery project to our hosted service, it is mandatory to pack your configuration before upload. Run pack command from root directory of your project will automatically generate a your-project-name.tgz file.

yarn build

Indexing and Query

Run required systems in docker

Under the project directory run following command:

docker-compose pull && docker-compose up

Query the project

Open your browser and head to http://localhost:3000.

Finally, you should see a GraphQL playground is showing in the explorer and the schemas that ready to query.

For the subql-starter project, you can try to query with the following code to get a taste of how it works.

query {
  historyElements(
#      see pagination guidelines https://graphql.org/learn/pagination/#pagination-and-edges
    orderBy: TIMESTAMP_DESC
    first: " << insert int to receive first n entries after the cursor >> "
    after: " << cursor of the record from which the first n entries are to be obtained >> "
    filter: {
      or: [
        {
          address: {
            equalTo: " << address to receive the history for >> "
          }
        }
        {
          data: {
            contains: {
              to: " << address to receive the history for >> "
            }
          }
        }
      ]
    }
  ) {
    totalCount
    edges {
    node {
      id
      blockHeight
      blockHash
      module
      method
      address
      networkFee
      execution
      timestamp
      data
    }
      cursor }

    pageInfo {
      startCursor
      endCursor
      hasNextPage
    }
  }
}