I recently published a new package on npm that brings the OpenAI APIs to React Native Expo without polyfills.
Today the library supports chat streaming, normal chat completions and file upload with more endpoints coming soon. The goal of the library is to follow the OpenAI Node SDK wherever possible while taking advantage of React Native SSE and Expo FileSystem with streaming and file upload support where the OpenAI Node SDK does not work. Lmk what you think or what you would like to see!