majiayu000/claude-arsenal
xiaohongshu
xiaohongshu
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Convex Backend - Realtime Database & Functions
convex-backend
Build real-time, reactive backend applications with Convex using TypeScript queries, mutations, and actions with automatic reactivity and optimistic updates. Use when building real-time collaborative applications, implementing reactive data synchronization, writing serverless backend functions, c...
SKILL.md
Full skill instructions
Convex Backend - Realtime Database & Functions
When to use this skill
- Building real-time collaborative applications
- Implementing reactive data that auto-updates
- Writing Convex queries, mutations, and actions
- Creating serverless backend functions with TypeScript
- Implementing optimistic UI updates
- Handling file uploads with Convex storage
- Implementing authentication with Convex Auth
- Designing Convex database schemas
- Building chat applications or live dashboards
- Creating applications with instant data sync
- Implementing scheduled functions (crons)
- Building backends without managing infrastructure
When to use this skill
- Building realtime apps with Convex, implementing reactive queries, or managing backend logic with type-safe functions.
- When working on related tasks or features
- During development that requires this expertise
Use when: Building realtime apps with Convex, implementing reactive queries, or managing backend logic with type-safe functions.
Core Concepts
Queries (Read Data)
```typescript import { query } from './_generated/server'; import { v } from 'convex/values';
export const list = query({ args: {}, handler: async (ctx) => { return await ctx.db.query('users').collect(); } });
export const get = query({ args: { id: v.id('users') }, handler: async (ctx, args) => { return await ctx.db.get(args.id); } }); ```
Mutations (Write Data)
```typescript import { mutation } from './_generated/server';
export const create = mutation({ args: { name: v.string(), email: v.string() }, handler: async (ctx, args) => { return await ctx.db.insert('users', args); } }); ```
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