Files
BAMS/backend/internal/api/middleware.go

68 lines
1.9 KiB
Go

package api
import (
"net/http"
"time"
"github.com/bams/backend/internal/logger"
"github.com/gorilla/mux"
)
func loggingMiddleware(log *logger.Logger) mux.MiddlewareFunc {
return func(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
start := time.Now()
log.Info("HTTP request", "method", r.Method, "path", r.URL.Path, "remote", r.RemoteAddr)
// Wrap response writer to capture status code
wrapped := &responseWriter{ResponseWriter: w, statusCode: http.StatusOK}
next.ServeHTTP(wrapped, r)
duration := time.Since(start)
log.Info("HTTP response", "method", r.Method, "path", r.URL.Path, "status", wrapped.statusCode, "duration", duration)
})
}
}
func corsMiddleware() mux.MiddlewareFunc {
return func(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Access-Control-Allow-Origin", "*")
w.Header().Set("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS")
w.Header().Set("Access-Control-Allow-Headers", "Content-Type, Authorization")
w.Header().Set("Access-Control-Max-Age", "3600")
if r.Method == "OPTIONS" {
w.WriteHeader(http.StatusOK)
return
}
next.ServeHTTP(w, r)
})
}
}
func recoveryMiddleware(log *logger.Logger) mux.MiddlewareFunc {
return func(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
defer func() {
if err := recover(); err != nil {
log.Error("Panic recovered", "error", err, "path", r.URL.Path)
jsonError(w, http.StatusInternalServerError, "Internal server error")
}
}()
next.ServeHTTP(w, r)
})
}
}
type responseWriter struct {
http.ResponseWriter
statusCode int
}
func (rw *responseWriter) WriteHeader(code int) {
rw.statusCode = code
rw.ResponseWriter.WriteHeader(code)
}