Cosmos transaction signer

How use

For first require the library

const {Txs, build, factory} = require('tx-signer');

Now you can create transactions:

First way - create plain object with includes type property.

const tx = build({
    type: 'auth/StdTx',
    ... other 'auth/StdTx' params
    msg: [{
	    type: 'multisig/submit-call',
	    ... other 'multisig/submit-call' params
    }]
});

Second way - create an instance of the object using the factory.

const tx = Txs.Auth.StdTx({
    ...
    msg: [{
	    Txs.Multisig.SubmitCall({...})
    }]
})

Or you can use both of these ways together:

const tx = Txs.Auth.StdTx({
    msg: [{
	    type: 'multisig/submit-call',
	    ...
    }]
})

Sign transaction

To sign a transaction, you must first have access to the wallet.

const wallet = new Wallet(...); // Create wallet
const account = await api.getAccount(wallet.address); // Get account from API

const tx = Txs.Auth.StdTx({ 
	chainId: 'wings-testnet',  
	gas: '200000',  
	memo: '',  
	account,
	msg: [{
		Txs.Multisig.SubmitCall({
			sender: account.address,
			uniqueId: 'test-unique-id',
			msg: Txs.Poa.AddValidator({
				address: "validator cosmos address",
				ethAddress: "Ethereum validator address",
				sender: account.address,
			})
		})
	}]
});

const signedTransaction = tx.sign(wallet); // Sign transaction

// Sending transaction to blockchain
api.broadcastTx(signedTransaction, 'block');

Types of transaction

auth/StdTx

Factory equivalent: Txs.Auth.StdTx

param	type
chainId	String	Cosmos chain id
gas	Numeric	Gas of transaction
memo	String	Memo
msg	BaseTx | Array<BaseTx>	Other messages
account	Object	User account
account.address	String	Cosmos address
account.account_number	Numeric
account.sequence	Numeric
account.public_key	Object
account.public_key.type	String	Key type
account.public_key.value	String	Base64 public key

account you can get from the cosmos blockchain.

currencies/issue-currency

Factory equivalent: Txs.Currencies.IssueCurrency

param	type
amount	Numeric
decimals	Numeric
issueId	String
recipient	String
symbol	String

currencies/destroy-currency

Factory equivalent: Txs.Currencies.DestroyCurrency

param	type
amount	Numeric
chainId	String
spender	String
recipient	String
symbol	String

multisig/submit-call

Factory equivalent: Txs.Multisig.SubmitCall

param	type
sender	String
uniqueId	String
msg	BaseTx	Submit message

multisig/confirm-call

Factory equivalent: Txs.Multisig.ConfirmCall

param	type
sender	String
msgId	String

TODO ...