Post Transaction

Post a signed transaction on Arweave

This is the final step of the transaction process on Arweave.

The postTransaction function uploads the previously signed transaction on Arweave.

Basic Syntax

The function is called as follows:

import { postTransaction } from 'arweavekit/transaction'

const postedTransaction = await postTransaction({params}) 

Input Parameters

The following params are available for this function and they must be passed in as an object:

  • key: JWKInterface (optional): The private key for the wallet posting the transaction. The wallet key file can be loaded as follows:

import { readFileSync } from 'fs';

const key = JSON.parse(readFileSync('wallet.json').toString());

Make sure to use the same private key used in the signTransaction function.

  • environment: 'local' | 'mainnet' (optional) : The environment on which the transaction was created and signed.

An arlocal instance must be running on port 1984 for the function to work with the local environment. To create one, simply run npx arlocal in the command line. Learn more about arlocal here.

  • transaction: object : The transaction object signed previously.

const postedTransaction = await postTransaction({
    transaction: transaction,
    key: { KEY_OBJECT },
    environment: 'mainnet',

This function call posts the signed transaction on Arweave's mainnet.

Returned Data

The function call returns the following data depending on input parameters:

  • A signed object of type Transaction is returned by Arweave.

  • A status object is also returned. status: 200 and statusText: 'OK' indicates a successful post request on Arweave.

    • The transaction is posted on the selected environment (local or mainnet).

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