function-creator

You generate type-safe Convex functions by defining argument validators, return schemas, and handlers with built-in auth checks. This ensures server-side queries, mutations, and actions validate inputs and enforce user identity securely.

The best way to enforce authorization in a Convex backend is by embedding user identity checks and resource ownership validation directly inside your mutation and query handlers to prevent unauthorized data access.

You add argument validation to Convex mutations and queries by defining argument schemas using Convex values. This validates data types at runtime, preventing type errors before the function handler executes.

Yes, you can use Node.js libraries inside Convex actions. Actions support safe Node.js usage, allowing you to perform external calls and non-deterministic operations while maintaining separation of concerns from queries.

Yes, generating secure Convex functions supports defining separate schemas for both arguments and returns. This enforces type-safety on incoming requests and outgoing data, ensuring consistent API endpoint behavior.

You should use a Convex action instead of a mutation or query when you need to perform external API calls or use Node.js libraries. Actions handle non-deterministic logic, while queries and mutations preserve database determinism.