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expo-api-routes

Create Expo Router API routes hosted on EAS Hosting with TypeScript and HTTP methods.

Updated Feb 3, 2026
Search Tags:#typescript#serverless#expo#cloudflare-workers#api-routes#expo-router#eas-hosting
One-click install
npx skills add https://github.com/msichterman/templatesick --skill expo-api-routes-msichterman
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: expo-api-routes
Source: https://github.com/msichterman/templatesick/tree/main/.agents/skills/expo-api-routes
Command: npx skills add https://github.com/msichterman/templatesick --skill expo-api-routes-msichterman

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill provides a structured approach for building Expo Router API routes that can be hosted via EAS Hosting, simplifying server-side logic for mobile and web apps.

Core Features & Use Cases

  • API Route Guidelines: Define app/api/+api.ts endpoints using standard HTTP methods with TypeScript types for strong typing.
  • Security & Secrets: Best practices for managing environment variables and shielding API keys.
  • Deployment Patterns: Guidance for deploying Expo API routes to EAS Hosting and integrating with existing Expo projects.
  • Use Case: Create a protected route to fetch user data and proxy a third-party service without exposing secrets to the client.

Quick Start

Create a new Expo app, add an API route under app/api/hello+api.ts, and deploy with eas deploy. Access your API at the corresponding /api/hello endpoint.

Frequently Asked Questions about expo-api-routes

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

FAQPage Schema
How do I create Expo Router API routes for EAS Hosting?▼

Define app/api/+api.ts endpoints using standard HTTP methods with TypeScript types for strong typing. You can deploy these serverless endpoints directly via EAS Hosting using the eas deploy command.

How do I manage secrets and environment variables in Expo API routes?▼

Manage secrets and environment variables by following secure data handling best practices to shield API keys from the client. This allows you to proxy third-party services without exposing sensitive keys to mobile and web contexts.

Does EAS Hosting apply Cloudflare Workers constraints to Expo API routes?▼

EAS Hosting applies Cloudflare Workers constraints to Expo API routes. Your server-side logic must align with these serverless limitations, utilizing proper HTTP methods and environment variables for EAS deployments.

What is the best way to validate requests in Expo Router API routes?▼

The best way to validate requests in Expo Router API routes is by implementing server-side request validation using TypeScript types. This provides strong typing for your endpoints across both mobile and web contexts.

Can I use Expo API routes to proxy third-party services without exposing API keys?▼

You can use Expo API routes to proxy third-party services without exposing API keys to the client. By managing environment variables securely on the server, your protected route fetches data without leaking secrets.

When should I not use Expo API routes for server-side logic?▼

You should not use Expo API routes if your server-side logic exceeds Cloudflare Workers constraints or requires heavy background processing. They are designed for scalable hosting of standard HTTP method endpoints, not complex server operations.

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