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webdev-readme-mobile-backend

Implements backend features for Expo mobile apps using Manus OAuth, Drizzle, and tRPC.

Updated Aug 28, 2026
Search Tags:#drizzle#oauth#backend#mobile development#trpc#react native#expo
One-click install
npx skills add https://github.com/AnderHonorato/Mem-rias-IA---Infinity --skill webdev-readme-mobile-backend-anderhonorato
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: webdev-readme-mobile-backend
Source: https://github.com/AnderHonorato/Mem-rias-IA---Infinity/tree/main/Manus/Skills/webdev-readme-mobile-backend
Command: npx skills add https://github.com/AnderHonorato/Mem-rias-IA---Infinity --skill webdev-readme-mobile-backend-anderhonorato

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve? Building server-side features for a Manus mobile-app (Expo) project requires coordinating authentication, database schema, typed APIs, and platform integrations; this Skill provides the authoritative guide so those features are implemented correctly the first time. ## Core Features & Use Cases - Authentication & User Management: Implements Manus OAuth login flows for native (Bearer token via expo-secure-store) and web (HTTP-only cookie), with a useAuth hook and protected tRPC procedures. - Database & API Layer: Defines Drizzle ORM schemas, generates migrations, writes query helpers in server/db.ts, and exposes type-safe tRPC routers with Zod input validation. - Built-in Integrations: Provides server-side helpers for LLM calls (invokeLLM with structured JSON output), Whisper voice transcription, image generation, S3 file storage, and owner notifications. - Use Case: When adding a synced todo list to an Expo app, follow this guide to create the items table, write CRUD query helpers, expose protected tRPC routes, and consume them from React Native components. ## Quick Start Read this guide before writing any backend, database, or server code in a Manus mobile-app project, then implement the required auth, schema, and tRPC routes following its patterns.

Frequently Asked Questions about webdev-readme-mobile-backend

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

FAQPage Schema
How do I add authentication to an Expo app with Manus OAuth?▼

Manus OAuth works via Bearer tokens stored in expo-secure-store on native and HTTP-only cookies on web. Use the useAuth hook to access user state, and protect server routes with protectedProcedure so ctx.user is guaranteed.

How do I create database tables with Drizzle ORM in this template?▼

Define tables in drizzle/schema.ts using mysqlTable helpers, then run pnpm drizzle-kit generate to produce migration SQL and apply it via webdev_execute_sql. Add query helpers in server/db.ts using the getDb connection.

Does the backend require user login for LLM or storage features?▼

No, backend features like LLM calls, image generation, and S3 storage work without user auth by using publicProcedure instead of protectedProcedure. Login is only mandatory when identifying users or syncing user-specific data.

How do I get structured JSON output from invokeLLM?▼

Pass response_format with type json_schema for flat structures, or json_object for nested arrays and objects. The model returns JSON in choices[0].message.content, which you parse with JSON.parse.

Why does my tRPC protected procedure fail for logged-out users?▼

protectedProcedure throws an UNAUTHORIZED error when no session exists. Handle it in the frontend by catching the error, checking error.data?.code === 'UNAUTHORIZED', and redirecting to the login screen.

Which files should I avoid editing in the mobile-app template?▼

Avoid modifying anything under _core/ directories in server/, shared/, and lib/, plus hooks/use-auth.ts, since these are framework-level code. Only extend marked files like server/db.ts, server/routers.ts, and drizzle/schema.ts.

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