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react-native

Basic React Native Components​

Expo Navigation​

API routes​

In expo, api routes are completely served on the server, and expo bundles the mobile web part of your app into a server that runs in the EAS cloud in prod and on localhost in development.

API routes have the exact same syntax as nextjs routes and use file-based routing. They end in the +api.ts suffix.

To get started with EXPO API routes, you need to bundle the web output to a server by configuring your app.json

app.json
{
  "web": {
    "output": "server"
  }
}

API route basics​

Expo uses web standard Request and Response objects for the API routes.

app/api/hello+api.ts
export function GET(request: Request) {
  return Response.json({ hello: 'world' });
}

The above route handler that lives in the app/api/hello+api.ts file will be the handler for the /api/hello route on the server.

You can then fetch your API route in your expo react native code through a relative path:

layout.tsx
const response = await fetch("/api/hello")

Expo SDK​

Expo SQLite​