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middleware to be set right after body parser in order to return 4xx error back to the client

Converts 4XX and 5XX responses to errors

Elysia plugin for handling HTTP 4xx and 5xx errors with structured exception classes and automatic error responses

43 pre-built HTTP error classes (4xx/5xx) with status codes, status messages, and duck-typed type guards.

Allow 4xx or 5xx statuses for cross-domain requests.

JavaScript errors that map to HTTP 4xx and 5xx error codes

Next.js middleware: instant perma-ban for IPs whose first request is 4xx

Node.js Streams, a user-land copy of the stream library from Node.js

Error classes for HTTP-error-codes (4xx, 5xx)

- Methods: GET, POST, PUT, OPTIONS - Description - Endpoint (can be full path) (/api/v1/users) - Multiple Responses - Shuffle Response - Sequential Response - Rules in Response - Status (Any status code 2xx, 4xx) - Latency - Body - Templat

Node.js Adapter for Hono

send 4xx 5xx response, compatible with connect

poe 4xx and 5xx pages

Error utilities which provide error classes for HTTP response (4xx, 5xx) and more.

response 4xx 5xx, handover-plugin, compatible with connect

Fetches a URL, extracts all anchor tags, checks each for HTTP 4xx/5xx status codes, analyzes meta tags (title, description, og:title, og:image, canonical, viewport), follows redirect chains up to 10 hops. Returns broken links with status codes, missing me

Node.js final http responder

Interact with HTTP status code

NestJS exception filter that captures only 5xx errors in Sentry — eliminates 4xx noise, supports HTTP and GraphQL