expo-api-routes

Build secure Expo Router API routes with +api.ts endpoints for EAS Hosting.

264|11|Updated Apr 25, 2026
One-click install
npx skills add https://github.com/rkz91/coco --skill expo-api-routes-rkz91
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: expo-api-routes
Source: https://github.com/rkz91/coco/tree/main/skills/expo-api-routes
Command: npx skills add https://github.com/rkz91/coco --skill expo-api-routes-rkz91

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Creating robust, scalable API routes for Expo apps can be tricky without standardized patterns. This guide provides a structured approach to building API endpoints with Expo Router and EAS Hosting, covering secure server-side logic, environment management, and deployment considerations.

Core Features & Use Cases

  • API routes in app/api with +api.ts files for GET/POST style endpoints.
  • Secure handling of secrets and environment variables for production.
  • Proxy external services and perform server-side validation before database interactions.
  • Local testing and deployment workflows using Expo CLI and EAS Hosting (Cloudflare Workers).

Quick Start

Create a new API route under app/api with a +api.ts file, then test locally via Expo and deploy to EAS Hosting.

Frequently Asked Questions about expo-api-routes

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I build secure API routes with Expo Router?

You can build secure API routes in Expo Router by creating endpoints within the app/api directory using +api.ts files. This pattern enables server-side processing for secure secret management, data validation, and controlled access to external services or databases.

What is the best way to manage environment variables for Expo API routes?

Managing environment variables for Expo API routes involves enforcing best practices for secure server-side secret handling. This ensures sensitive data is processed safely on the server before interacting with external services or databases within your Expo application.

Can I deploy Expo API routes to Cloudflare Workers using EAS Hosting?

Yes, you can deploy Expo API routes to Cloudflare Workers using EAS Hosting. The workflow supports local testing via the Expo CLI followed by direct deployment, ensuring your server-side endpoints run efficiently in the hosted environment.

How do I handle CORS and error handling in Expo server-side endpoints?

Handling CORS and errors in Expo server-side endpoints requires applying standardized best practices for API route development. This ensures robust data validation and controlled access, preventing unexpected failures when proxying external services.

Does Expo Router support GET and POST style API endpoints?

Yes, Expo Router supports GET and POST style API endpoints through the app/api +api.ts file convention. This allows you to handle server-side logic and route requests directly within your Expo application structure.

Why do I need server-side validation for external service calls in Expo apps?

Server-side validation is needed for external service calls in Expo apps to ensure controlled access and protect sensitive secrets. Processing data validation on the server before database interactions prevents unauthorized access and maintains data integrity.