I need to use my custom native fetch function from javascript code on my React Native iOS app and it must be asynchronous and works the same as standard one. I want to implement it with React Native JSI so how to expose asynchronous function to javascript?
React Native JSI: How to call expose a promised function from native to javascript
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To expose an asynchronous function from native to javascript you can use
Promise
object from the React Native runtime and use its constructor to build the promise with your code. For instance, there is implementation of 'nativeFetch' function withNSURLSession
:AppDelegate.mm
App.js
Outputs: