02QueryingIndexerTransaction

⚠️ The Docs have been moved to https://docs.ts.injective.network/querying/querying-api/querying-indexer-transaction ⚠️

Example code snippets to query the indexer for transaction module related data.

Using gRPC

• Get a response for preparing a tx

import { Msgs, IndexerGrpcTransactionApi } from '@injectivelabs/sdk-ts'
import { getNetworkEndpoints, Network } from '@injectivelabs/networks'
import { EthereumChainId } from '@injectivelabs/ts-types'

const endpoints = getNetworkEndpoints(Network.TestnetK8s)
const indexerGrpcTransactionApi = new IndexerGrpcTransactionApi(endpoints.indexer)

const address = '0x...' // ethereum address
const chainId = EthereumChainId.Goerli
const message = { ... } as Msgs
const memo = '...'

const prepareTxResponse = await indexerGrpcTransactionApi.prepareTxRequest({
  address,
  chainId,
  message,
  memo
})

console.log(prepareTxResponse)

• Get a response for preparing a cosmos tx

import { IndexerGrpcTransactionApi } from '@injectivelabs/sdk-ts'
import { getNetworkEndpoints, Network } from '@injectivelabs/networks'

const endpoints = getNetworkEndpoints(Network.TestnetK8s)
const indexerGrpcTransactionApi = new IndexerGrpcTransactionApi(endpoints.indexer)

const address = 'inj...'
const message = { ... }

const prepareCosmosTxResponse = await indexerGrpcTransactionApi.prepareCosmosTxRequest({
  address,
  message
})

console.log(prepareCosmosTxResponse)

• get a response for preparing a tsx on Injective exchange module

import { Msgs, IndexerGrpcTransactionApi } from '@injectivelabs/sdk-ts'
import { getNetworkEndpoints, Network } from '@injectivelabs/networks'
import { EthereumChainId } from '@injectivelabs/ts-types'

const endpoints = getNetworkEndpoints(Network.TestnetK8s)
const indexerGrpcTransactionApi = new IndexerGrpcTransactionApi(endpoints.indexer)

const address = '0x...' /* ethereum address */
const chainId = EthereumChainId.Goerli
const message = { ... } as Msgs
const memo = '...' /* optional param */

const prepareTxResponse = await indexerGrpcTransactionApi.prepareExchangeTxRequest({
  address,
  chainId,
  message,
  memo
})

console.log(prepareTxResponse)

• get a response for broadcasting a tsx from desktop while using an ethereum wallet extension. Use MsgBroadcasterWithPk to broadcast a tsx for node app, which can be found in @injectivelabs/sdk-ts. Check out @injectivelabs/wallet-ts's MsgBroadcaster class for more details on broadcasting a tsx

import { Msgs, IndexerGrpcTransactionApi } from '@injectivelabs/sdk-ts'
import { getNetworkEndpoints, Network } from '@injectivelabs/networks'
import { ChainId, EthereumChainId } from '@injectivelabs/ts-types'
import { WalletStrategy } from '@injectivelabs/wallet-ts'
import { CosmosWalletStrategy, Wallet } from '@injectivelabs/wallet-ts'

const endpoints = getNetworkEndpoints(Network.TestnetK8s)
const indexerGrpcTransactionApi = new IndexerGrpcTransactionApi(endpoints.indexer)

const chainId = ChainId.Testnet // The Injective Chain chainId
const ethereumChainId = EthereumChainId.Goerli // The Ethereum Chain ID

export const alchemyRpcEndpoint = `https://eth-goerli.alchemyapi.io/v2/${process.env.APP_ALCHEMY_GOERLI_KEY}`

const rpcUrl = `https://eth-goerli.alchemyapi.io/v2/${process.env.APP_ALCHEMY_GOERLI_KEY}`

const wsRpcUrl = `wss://eth-goerli.ws.alchemyapi.io/v2/${process.env.APP_ALCHEMY_GOERLI_KEY}`

const alchemyKey =  process.env.APP_ALCHEMY_GOERLI_KEY as string

const walletStrategy = new WalletStrategy({
  chainId: CHAIN_ID,
  ethereumOptions: {
    rpcUrl,
    wsRpcUrl,
    ethereumChainId: ETHEREUM_CHAIN_ID,
    disabledWallets: [Wallet.WalletConnect]
  }
})

const address = '0x...' // ethereum address
const message = { ... } as Msgs
const memo = '...'
const response = { ... } // response from  prepareTxRequest
const signature = await walletStrategy.signEip712TypedData(
      response.getData(),
      address,
    ) /* see injective-ts/wallet-ts implementation of WalletStrategy. Essentially, you use the signEip712TypedData method of the wallet, if the wallet supports signing ethereum transactions */

const broadcastTxResponse = await indexerGrpcTransactionApi.broadcastTxRequest({
  signature,
  chainId,
  message,
  txResponse: response
})

console.log(broadcastTxResponse)

• get a response for broadcasting a cosmos tsx. Check out @injectivelabs/wallet-ts's MsgBroadcaster class for more details on broadcasting a cosmos tsx

import { IndexerGrpcTransactionApi } from '@injectivelabs/sdk-ts'
import { getNetworkEndpoints, Network } from '@injectivelabs/networks'
import { TxRaw } from '@injectivelabs/chain-api'

const endpoints = getNetworkEndpoints(Network.TestnetK8s)
const indexerGrpcTransactionApi = new IndexerGrpcTransactionApi(endpoints.indexer)

const address = 'inj...' // ethereum address
const signature = '...' // base64
const txRaw = { ... } as TxRaw
const pubKey = {
  type: string,
  value: string // base64
}

const broadcastCosmosTxResponse = await indexerGrpcTransactionApi.broadcastCosmosTxRequest({
  address,
  signature,
  txRaw,
  pubKey
})

console.log(broadcastCosmosTxResponse)

• get the fee payer

import { IndexerGrpcTransactionApi } from "@injectivelabs/sdk-ts";
import { getNetworkEndpoints, Network } from "@injectivelabs/networks";

const endpoints = getNetworkEndpoints(Network.TestnetK8s);
const indexerGrpcTransactionApi = new IndexerGrpcTransactionApi(
  endpoints.indexer
);

const feePayer = await indexerGrpcTransactionApi.fetchFeePayer();

console.log(feePayer);