anthonyhastings/pollyjs-example

Example of using Polly.JS (https://netflix.github.io/pollyjs) to replay responses and intercept requests.

Polly.JS Example

Introduction

This repository showcases examples of using Polly.JS to replay pre-recorded HTTP interactions. We demonstrate a fetch call being instantly resolved with the contents of a .har file, and another fetch call that is intercepted and responded to within JS.

Instructions

This demonstration assumes you already have Node and NPM installed. The steps are as follows:

1. Install node dependencies:

npm install

2. Run the application:

npm start

3. Observe that requests are replayed and intercepted respectively:

Replayed ➞ GET https://jsonplaceholder.typicode.com/posts/1 200 • 2ms
Intercepted ➞ GET https://made-up-website.com/hello-world 200 • 0ms

4. Delete the recordings/ directory and re-run the application to observe the first request gets recorded (for future replaying):

Recorded ➞ GET https://jsonplaceholder.typicode.com/posts/1 200 • 136ms