Inbuilt Libraries

Bruno supports CommonJS syntax require for importing libraries. ES Modules import/export are not supported at this time.

Here’s an example demonstrating how to use the chai library in Bruno:

const chai = require('chai');
 
const { expect } = chai;
 
function add(a, b) {
  return a + b;
}
 
const result = add(2, 3);
 
expect(result).to.equal(5);
 
console.log('Test passed!');

You can include this code in the pre-request script section of Bruno to test it out.

Below is the list of inbuilt libraries supported by Bruno.

• axios - Promise based HTTP client for the browser and node.js
• atob - Turn base64-encoded ascii data back to binary.
• btoa - Turn binary data to base64-encoded ascii.
• chai - BDD/TDD assertion library for node.js and the browser.
• moment - Parse, validate, manipulate, and display dates and times in JavaScript.
• uuid - For the creation of RFC4122 UUIDs.
• nanoid - A tiny, secure, URL-friendly, unique string ID generator for JavaScript.
• crypto-js - JavaScript library of crypto standards.

• node-fetch - A light-weight module that brings Fetch API to Node.js.
• lodash - A modern JavaScript utility library delivering modularity, performance & extras.
• ajv - Ajv JSON schema validator.