Small but powerful structured logging package for HTTP request logging built
on the Go 1.21+ stdlib slog
package.
go get -u github.com/go-chi/httplog/v2
(see _example/)
package main
import (
"log/slog"
"net/http"
"github.com/go-chi/chi/v5"
"github.com/go-chi/chi/v5/middleware"
"github.com/go-chi/httplog/v2"
)
func main() {
// Logger
logger := httplog.NewLogger("httplog-example", httplog.Options{
// JSON: true,
LogLevel: slog.LevelDebug,
Concise: true,
RequestHeaders: true,
MessageFieldName: "message",
// TimeFieldFormat: time.RFC850,
Tags: map[string]string{
"version": "v1.0-81aa4244d9fc8076a",
"env": "dev",
},
QuietDownRoutes: []string{
"/",
"/ping",
},
QuietDownPeriod: 10 * time.Second,
// SourceFieldName: "source",
})
// Service
r := chi.NewRouter()
r.Use(httplog.RequestLogger(logger))
r.Use(middleware.Heartbeat("/ping"))
r.Use(func(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
httplog.LogEntrySetField(ctx, "user", slog.StringValue("user1"))
next.ServeHTTP(w, r.WithContext(ctx))
})
})
r.Get("/", func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("hello world"))
})
r.Get("/panic", func(w http.ResponseWriter, r *http.Request) {
panic("oh no")
})
r.Get("/info", func(w http.ResponseWriter, r *http.Request) {
oplog := httplog.LogEntry(r.Context())
w.Header().Add("Content-Type", "text/plain")
oplog.Info("info here")
w.Write([]byte("info here"))
})
r.Get("/warn", func(w http.ResponseWriter, r *http.Request) {
oplog := httplog.LogEntry(r.Context())
oplog.Warn("warn here")
w.WriteHeader(400)
w.Write([]byte("warn here"))
})
r.Get("/err", func(w http.ResponseWriter, r *http.Request) {
oplog := httplog.LogEntry(r.Context())
oplog.Error("msg here", "err", errors.New("err here"))
w.WriteHeader(500)
w.Write([]byte("oops, err"))
})
http.ListenAndServe("localhost:8000", r)
}
MIT