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typescriptbeginner

Request Timeout Middleware

Express middleware that aborts requests exceeding a configurable time limit with 408 status.

typescript
import { Request, Response, NextFunction } from 'express';

export function requestTimeout(ms = 30_000) {
  return (req: Request, res: Response, next: NextFunction) => {
    const timer = setTimeout(() => {
      if (!res.headersSent) {
        res.status(408).json({ error: 'Request timeout' });
      }
    }, ms);

    res.on('finish', () => clearTimeout(timer));
    res.on('close', () => clearTimeout(timer));
    next();
  };
}

Use Cases

  • Preventing hanging requests
  • API reliability

Tags

#express#timeout#middleware#reliability

Related Snippets

Similar patterns you can reuse in the same workflow.

typescriptintermediate

JWT Verify Middleware

Express middleware that verifies JWT tokens from the Authorization header and attaches the decoded payload to the request.

Best for: REST API authentication

#jwt#express
typescriptintermediate

In-Memory Rate Limiter for Express

Token bucket rate limiter middleware for Express with configurable window and max requests per IP.

Best for: API abuse prevention

#express#rate-limit
typescriptbeginner

Async Error Handler Wrapper

Higher-order function that wraps async Express route handlers and forwards rejected promises to error middleware.

Best for: Express route error handling

#express#async
typescriptbeginner

Express Zod Request Validation

Validate Express request body, params, and query with Zod schemas via reusable middleware.

Best for: API input validation

#express#zod