Custom Middleware Chains
Build custom middleware for logging, rate-limiting, or authorization and chain them together.
Chain Multiple Middleware
In tRPC, middleware lets you run logic before your procedure executes. What if you need multiple checks, like logging, authentication, and validation, for a single API call?
This is where middleware chains come in handy! They allow you to stack multiple middleware functions, executing them one after another.
Benefits of Chaining
Chaining middleware offers several advantages:
- Modularity: Each middleware focuses on a single responsibility (e.g., logging, auth).
- Reusability: Create generic middleware that can be applied to different procedures or routers.
- Order of Execution: Control the exact sequence of operations before your main procedure logic runs.
- Early Exit: A middleware can stop the chain early if a condition isn't met (e.g., unauthorized access).
All lessons in this course
- Creating tRPC Context
- Authentication Middleware
- Custom Middleware Chains
- Logging and Performance Timing Middleware