Prool Setup

Setup infinite pooled Tempo node instances in TypeScript using prool by following the steps below.

Install Prool for Tempo

Prool is a library that provides programmatic HTTP testing instances for Ethereum.

Create a Prool instance

You can programmatically start a Tempo node instance in TypeScript using Instance.tempo:

import { Instance, Server } from 'prool'
 
const server = Server.create({
  instance: Instance.tempo(),
});
 
// Start the node
await server.start()
// Instances available at: 
// - http://localhost:8545/1
// - http://localhost:8545/2
// - http://localhost:8545/3
// - http://localhost:8545/4
// - http://localhost:8545/n

You can also set up the Tempo instance using Instance.tempo directly if you do not need pooling.

import { Instance } from 'prool';
 
const instance = Instance.tempo()
 
// Start the node
await instance.start()
// Instance available at: http://localhost:8545

Next steps for Prool

After you have set up Tempo with Prool, you can now:

Easily use Tempo in your test suite with Vitest
Run Tempo locally alongside your Vite or Next.js development server

Was this helpful?

Suggest changes to this page