Convex Functions

This is your reference for building Convex backend functions. It covers the four main types: queries for reactive reads, mutations for transactional writes, actions for calling external APIs, and HTTP actions for webhooks. Each section shows the object syntax with validators that the Convex linter expects, plus patterns for internal functions and scheduling. The comparison table at the top is handy for remembering which function type can do what. Use this when you need to wire up database operations, handle Stripe webhooks, or call third-party APIs from your Convex backend without breaking reactivity or mixing concerns.