68 lines
1.5 KiB
Go
68 lines
1.5 KiB
Go
package logger
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import (
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"log/slog"
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"net/http"
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"runtime/debug"
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"strconv"
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"time"
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)
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func Middleware(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.Method == "GET" && r.URL.Path == "/healthz" {
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next.ServeHTTP(w, r)
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return
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}
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defer func() {
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if err := recover(); err != nil {
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w.WriteHeader(http.StatusInternalServerError)
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slog.Error(
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"panic",
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"err", err,
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"trace", string(debug.Stack()),
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)
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}
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}()
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start := time.Now()
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path := r.URL.Path
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query := r.URL.RawQuery
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bw := newBodyWriter(w)
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next.ServeHTTP(bw, r)
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end := time.Now()
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requestAttributes := []slog.Attr{
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slog.Time("time", start.UTC()),
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slog.String("method", r.Method),
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slog.String("host", r.Host),
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slog.String("path", path),
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slog.String("query", query),
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slog.String("ip", r.RemoteAddr),
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}
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responseAttributes := []slog.Attr{
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slog.Time("time", end.UTC()),
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slog.Duration("latency", end.Sub(start)),
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slog.Int("status", bw.status),
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}
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attributes := []slog.Attr{
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{
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Key: "request",
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Value: slog.GroupValue(requestAttributes...),
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},
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{
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Key: "response",
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Value: slog.GroupValue(responseAttributes...),
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},
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}
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level := slog.LevelInfo
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if bw.status >= http.StatusInternalServerError {
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level = slog.LevelError
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} else if bw.status >= http.StatusBadRequest && bw.status < http.StatusInternalServerError {
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level = slog.LevelWarn
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}
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slog.LogAttrs(r.Context(), level, strconv.Itoa(bw.status)+": "+http.StatusText(bw.status), attributes...)
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})
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}
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