Universal WHATWG Fetch API for Node, Browsers, Workers and React Native. The scenario that cross-fetch really shines is when the same JavaScript codebase needs to run on different platforms.

• Platform agnostic: browsers, Node or React Native
• Optional polyfill: it's up to you if something is going to be added to the global object or not
• Simple interface: no instantiation, no configuration and no extra dependency
• WHATWG compliant: it works the same way wherever your code runs
• TypeScript support: better development experience with types.
• Worker support: works on different types of workers such as Service Workers and CloudFlare Workers

Yet another fetch library?

I did a lot of research in order to find a fetch library that could be simple, cross-platform and provide polyfill as an option. There's a plethora of libs out there but none could match those requirements.

Why polyfill might not be a good idea?

In a word? Risk. If the spec changes in the future, it might be problematic to debug. Read more about it on sindresorhus's ponyfill page. It's up to you if you're fine with it or not.

How does cross-fetch work?

Just like isomorphic-fetch, it is just a proxy. If you're in node, it delivers you the node-fetch library, if you're in a browser or React Native, it delivers you the github's whatwg-fetch. The same strategy applies whether you're using polyfill or ponyfill.

Who's Using It?

The New York Times	Apollo GraphQL	Facebook	Swagger	VulcanJS	graphql-request