Package Exports

request-capture-har

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Readme

request-capture-har

Wrapper for request module that saves all network traffic data as a HAR file.

Full functionality is dependent on merged request PR #2352 which is not yet shipped to a release. You can use it in your dependencies as "request": "request/request#bfb3a46",.

Usage

// wrap around your request module
const request = require('request-capture-har')('request');

// ...
// Use request as you normally would
// ...

// Save HAR file to disk
request.saveHar(`network-waterfall_${new Date().toISOString()}.har`);

// You can also clear any collected traffic
request.clearHar();

This repo is a fork of larsthorup's node-request-har-capture. Instead of monkey-patching request-promise, we now are based on request including their streaming API. We also added better support for transfer timings.

Above is a HAR captured by using request-capture-har from within npm to capture an npm install.

Background

This is especially useful for capturing all test traffic from your back-end test suite, for doing auto mocking in your front-end test suite. See this project for an example: https://github.com/larsthorup/http-auto-mock-demo. Blog post about this technique: http://www.zealake.com/2015/01/05/unit-test-your-service-integration-layer/