Open AI React Native Client

The goal of this library is to use React Native SSE and Expo FileSystem instead of polyfills to support calling the OpenAI API directly from React Native with streaming and file upload support. The package uses the same types and API as the OpenAI Node SDK wherever possible.

[!CAUTION] This package is meant to be used with a proxy to OpenAI like the one Backmesh provides. The baseURL parameter for this OpenAI client is thus mandatory. If you do not use a proxy and set the baseURL to https://api.openai.com/v1, you are basically exposing your Open AI API key on the internet! You should never expose any secrets in the bundle of a web or mobile app. The correct usage of this client is to create an endpoint on a proxy server for communication with Open AI and then use that endpoint with a user generated auth JWT in your app.

Contributions and Feature Requests

If you would like to contribute or request a feature, please join our Discord and ask questions in the #openai-react-native channel or create a pull request or issue.

Setup

Install the package

npm i openai-react-native

And then instantiate the client:

import OpenAI from 'openai-react-native';

const client = new OpenAI({
  baseURL:
    'https://edge.backmesh.com/v1/proxy/PyHU4LvcdsQ4gm2xeniAFhMyuDl2/yWo35DdTROVMT52N0qs4/',
  // The backmesh proxy uses your auth provider's JWT to authorize access
  apiKey: supabase.auth.session().access_token,
});

Usage

The streaming APIs uses an EventSource from react-native-sse under the hood to provide a required typed onData stream event callback and three optional ones: onDone, onOpen and onError.

client.chat.completions.stream(
  {
    model: 'gpt-4o-mini',
    messages: [{ role: 'user', content: 'Hello, world!' }],
  },
  (data) => {
    console.log(data.choices[0].delta.content);
    const content = data.choices[0].delta.content;
    if (content) {
      setText((prevText) => prevText + content); // Handle the streaming completion data here
    }
  },
  {
    onError: (error) => {
      console.error('SSE Error:', error); // Handle any errors here
    },
    onOpen: () => {
      console.log('SSE connection for completion opened.'); // Handle when the connection is opened
    },
  }
);

The file upload API is async, requires a purpose string and leverages the Expo File System so only a filepath needs to be provided.

try {
  const filePath = FileSystem.documentDirectory + 'data.pdf'; // Adjust the path as needed
  const file = await client.files.create(filePath, 'fine-tune');
  console.log(file);
} catch (error) {
  console.error('File creation error:', error);
}

Check the example for more details

Coverage

• [x] Chat Completion
• [x] Models
• [x] Files
• [x] Moderations
• [ ] Images
• [ ] Audio
• [ ] Embeddings

Beta Coverage

• [x] Threads
• [x] Assistants

License

MIT