arlocal-utils

arlocal-utils is a small utility package that helps creating tests for SmartWeave contracts with ArLocal. The library enables developers to easily copy transactions and contracts from any Arweave gateway to an ArLocal testing gateway.

Install

yarn add arlocal-utils

or

npm i arlocal-utils

Usage

import ArLocalUtils from "arlocal-utils";

// create an Arweave client for the ArLocal gateway
const arlocalClient = new Arweave({
  host: "localhost",
  port: 123,
  protocol: "http"
});

// generate a wallet on the ArLocal gateway
// it will be used later to copy txs & contracts
const wallet = await arlocalClient.wallets.generate();

// initialize the library with the ArLocal Arweave client
const arlocalUtils = new ArLocalUtils(arlocalClient, wallet);

Copy transactions

To copy a transaction with it's data / tags from an Arweave gateway, use this code:

// returns the new ID for the copied transaction
const id = await arlocalUtils.copyTransaction(
  "FGz4VCxU8_jsLeRth4aaJ586tcwgy96ot-3qD5wAFqw"
);

Copy contracts

To copy a contract from an Arweave gateway, use this code:

// returns the new contract ID for the copied contract
const id = await arlocalUtils.copyContract(
  "usjm4PCxUd5mtaon7zc97-dt-3qf67yPyqgzLnLqk5A"
);

Get some example PSTs

If your tests need some example PSTs to operate with, the following code will return 4 IDs for PST contracts that you can use:

// returns an array of 4 PST contract IDs
const psts = await arlocalUtils.examplePSTs();