panicrecovery

Documentation

Index

• func PanicRecoveryMiddleware() httpmiddlewareutils.Middleware
• func PanicRecoveryMiddlewareFunc(...) httpmiddlewareutils.Middleware

Examples

• PanicRecoveryMiddleware
• PanicRecoveryMiddlewareFunc

Functions

func PanicRecoveryMiddleware

func PanicRecoveryMiddleware() httpmiddlewareutils.Middleware

Middleware that recovers from a panic by responding to the request with:

• http.StatusInternalServerError
• Response body of "500 Internal Server Error"

Will also record an error within the OTEL span with the stack and recovered value from the panic.

Example

mux := http.NewServeMux()
mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
	panic("a fatal error occurred")
})
middleware := PanicRecoveryMiddleware()
server := http.Server{
	Handler: middleware(mux),
}
// error handling omitted for brevity
defer server.Close()
_ = server.ListenAndServe()

func PanicRecoveryMiddlewareFunc

func PanicRecoveryMiddlewareFunc(recoverAction func(w http.ResponseWriter, r *http.Request, recoverValue any, stack []byte)) httpmiddlewareutils.Middleware

Middleware that allows the developer to specify a recovery action to take when recovering from a panic

Example

mux := http.NewServeMux()
mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
	panic("a fatal error occurred")
})
middleware := PanicRecoveryMiddlewareFunc(func(w http.ResponseWriter, r *http.Request, recoverValue any, stack []byte) {
	log.Printf("something has broken: %s", recoverValue)
})
server := http.Server{
	Handler: middleware(mux),
}
// error handling omitted for brevity
defer server.Close()
_ = server.ListenAndServe()

Output:

something has broken: a fatal error occurred