Logging is a collection of collection of packages to make easy the logging experience.
Logging is currently in active development and it's API WILL CHANGE WITHOUT NOTICE.
Httplog implements and HTTP middleware that can optionally log the raw request and responses.
package main import ( "fmt" "log" "net/http" "github.com/smallstep/logging" "github.com/smallstep/logging/httplog" ) func main() { logger, err := logging.New("scim", logging.WithLogResponses(), logging.WithLogRequests(), ) if err != nil { log.Fatal(err) } http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { fmt.Fprintln(w, "Hello World!") }) srv := &http.Server{ Addr: ":8080", Handler: httplog.Middleware(logger, http.DefaultServeMux), ErrorLog: logger.StdLogger(logging.ErrorLevel), } logger.Infof("start listening at %s.", srv.Addr) log.Fatal(srv.ListenAndServe()) }
A simple curl http://localhost:8080 will print the following logs:
$ go run examples/httplog.go
{"level":"info","ts":1582944317.382856,"caller":"logging/logger.go:87","msg":"start listening at :8080."}
{"level":"info","ts":1582944330.861353,"caller":"httplog/handler.go:121","msg":"","name":"scim","request-id":"bpct0ijipt3avli7utp0","remote-address":"::1","time":"2020年02月28日T18:45:30-08:00","duration":0.000064785,"duration-ns":64785,"method":"GET","path":"/","protocol":"HTTP/1.1","status":200,"size":13,"referer":"","user-agent":"curl/7.64.1","request":"R0VUIC8gSFRUUC8xLjENCkhvc3Q6IGxvY2FsaG9zdDo4MDgwDQpBY2NlcHQ6ICovKg0KVXNlci1BZ2VudDogY3VybC83LjY0LjENClgtVHJhY2UtSWQ6IGJwY3QwaWppcHQzYXZsaTd1dHAwDQoNCg==","response":"SGVsbG8gV29ybGQhCg=="}