🧬 Middleware

📄️ Adaptor

The adaptor package provides utilities for converting between Fiber and net/http. It allows seamless integration of net/http handlers, middleware, and requests into Fiber applications, and vice versa.

📄️ BasicAuth

Basic Authentication middleware for Fiber that provides an HTTP basic authentication. It calls the next handler for valid credentials and 401 Unauthorized or a custom response for missing or invalid credentials.

📄️ Cache

Cache middleware for Fiber designed to intercept responses and cache them. This middleware will cache the Body, Content-Type and StatusCode using the c.Path() as unique identifier. Special thanks to @codemicro for creating this middleware for Fiber core!

📄️ Compress

Compression middleware for Fiber that will compress the response using gzip, deflate, brotli, and zstd compression depending on the Accept-Encoding header.

📄️ CORS

CORS (Cross-Origin Resource Sharing) is a middleware for Fiber that allows servers to specify who can access its resources and how. It's not a security feature, but a way to relax the security model of web browsers for cross-origin requests. You can learn more about CORS on Mozilla Developer Network.

📄️ CSRF

The CSRF middleware for Fiber provides protection against Cross-Site Request Forgery (CSRF) attacks. Requests made using methods other than those defined as 'safe' by RFC9110#section-9.2.1 (GET, HEAD, OPTIONS, and TRACE) are validated using tokens. If a potential attack is detected, the middleware will return a default 403 Forbidden error.

📄️ EarlyData

The Early Data middleware for Fiber adds support for TLS 1.3's early data ("0-RTT") feature.

📄️ Encrypt Cookie

Encrypt Cookie is a middleware for Fiber that secures your cookie values through encryption.

📄️ EnvVar

EnvVar middleware for Fiber that can be used to expose environment variables with various options.

📄️ ETag

ETag middleware for Fiber that lets caches be more efficient and save bandwidth, as a web server does not need to resend a full response if the content has not changed.

📄️ ExpVar

Expvar middleware for Fiber that serves via its HTTP server runtime exposed variants in the JSON format. The package is typically only imported for the side effect of registering its HTTP handlers. The handled path is /debug/vars.

📄️ Favicon

Favicon middleware for Fiber that ignores favicon requests or caches a provided icon in memory to improve performance by skipping disk access. User agents request favicon.ico frequently and indiscriminately, so you may wish to exclude these requests from your logs by using this middleware before your logger middleware.

📄️ Health Check

Liveness, readiness and startup probes middleware for Fiber that provides three endpoints for checking the liveness, readiness, and startup state of HTTP applications.

📄️ Helmet

Helmet middleware helps secure your apps by setting various HTTP headers.

📄️ Idempotency

Idempotency middleware for Fiber allows for fault-tolerant APIs where duplicate requests—for example due to networking issues on the client-side — do not erroneously cause the same action to be performed multiple times on the server-side.

📄️ Keyauth

Key auth middleware provides a key based authentication.

📄️ Limiter

Limiter middleware for Fiber that is used to limit repeat requests to public APIs and/or endpoints such as password reset. It is also useful for API clients, web crawling, or other tasks that need to be throttled.

📄️ Logger

Logger middleware for Fiber that logs HTTP request/response details.

📄️ Monitor

Monitor middleware for Fiber that reports server metrics, inspired by express-status-monitor

📄️ Pprof

Pprof middleware for Fiber that serves via its HTTP server runtime profiling data in the format expected by the pprof visualization tool. The package is typically only imported for the side effect of registering its HTTP handlers. The handled paths all begin with /debug/pprof/.

📄️ Proxy

Proxy middleware for Fiber that allows you to proxy requests to multiple servers.

📄️ Recover

Recover middleware for Fiber that recovers from panics anywhere in the stack chain and handles the control to the centralized ErrorHandler.

📄️ Redirect

Redirection middleware for Fiber.

📄️ RequestID

RequestID middleware for Fiber that adds an identifier to the response.

📄️ Rewrite

Rewrite middleware rewrites the URL path based on provided rules. It can be helpful for backward compatibility or just creating cleaner and more descriptive links.

📄️ Session

The session middleware provides session management for Fiber applications, utilizing the Storage package for multi-database support via a unified interface. By default, session data is stored in memory, but custom storage options are easily configurable (see examples below).