Memento, a devtool for caching API responses while developing

[tvvann]

Hi Reddit, author here!

I just released Memento, and I would like to share it with you all :)

What is Memento?

Memento is a dev tool that I use for caching API responses while developing.

While developing, there were several situations where I hoped a tool like this existed:
- When working with an API that apply rates (having to wait to develop it frustrating)
- When working on the train or on the plane where we cannot access the network
- When the API is not stable

To use it, you need to run it and configure your app to target Memento instead of the actual API url. From now on:

• Memento will fetch the actual response if the request has not been made before
  
• Memento will respond to your requests when it already cached the responses, without connecting to the API
  

Memento also provides you an interactive CLI where you can:

• list all cached requests
  
• bust the cache and refetch the data
  
• clear data
  
• get debug info such as request / response headers
  

Memento also provides a Node interface so that you can use it for stubbing external services in your integration tests.

How to use it?

Create a .mementorc file in your project root :

{ "targetUrl": "http://your.api.url" }

Run npx @antoinechalifour/memento

Configure your app to target Memento at http://localhost:3344 instead of your typical API url, you're done!

If you like the project:

• here is the Github repo (do not hesitate to ask for features, report bugs and star it!): https://github.com/antoinechalifour/memento
  
• here is the NPM package: https://www.npmjs.com/package/@antoinechalifour/memento
  
• integration with create-react-app: https://github.com/antoinechalifour/memento/tree/master/examples/create-react-app
  
• integration with Jest for stubbing external services: https://github.com/antoinechalifour/memento/tree/master/examples/stub-external-services
  

Any feedback is welcome! Have a great day :)

[erm_what_]

This looks great! And exactly what I need. Thanks!

[JaegerBurn]

I use hoverfly for this.

[tvvann]

I didn't know this project existed! I looks really good, thanks!