# chizap [![Build Status](https://woodpecker.dwysokinski.me/api/badges/4/status.svg)](https://woodpecker.dwysokinski.me/repos/4)

A request logging middleware for [go-chi](https://github.com/go-chi/chi) using [zap](https://github.com/uber-go/zap).

## Getting started

### Installation

```shell
go get gitea.dwysokinski.me/Kichiyaki/chizap
```

### Usage

```go
package main

import (
	"log"
	"net/http"
	"strings"

	"gitea.dwysokinski.me/Kichiyaki/chizap"
	"github.com/go-chi/chi/v5"
	"go.uber.org/zap"
)

func main() {
	logger, err := zap.NewDevelopment()
	if err != nil {
		log.Fatalln("zap.NewDevelopment", err)
	}

	http.ListenAndServe(":8080", newRouter(logger))
}

func newRouter(logger *zap.Logger) *chi.Mux {
	router := chi.NewRouter()

	router.Route("/", func(r chi.Router) {
		r.Use(chizap.Logger(
			logger,
			chizap.WithFilter(func(r *http.Request) bool {
				return r.URL.Path != "/excluded"
			}),
			chizap.WithFilter(func(r *http.Request) bool {
				return r.URL.Path != "/excluded2"
			}),
			chizap.WithAdditionalFieldExtractor(func(r *http.Request) []zap.Field {
				if !strings.HasPrefix(r.URL.Path, "/delete") {
					return nil
				}

				return []zap.Field{
					zap.String("id", chi.URLParam(r, "id")),
				}
			}),
		))
		r.Get("/info", func(w http.ResponseWriter, r *http.Request) {
			w.WriteHeader(http.StatusOK)
		})
		r.Get("/warn", func(w http.ResponseWriter, r *http.Request) {
			w.WriteHeader(http.StatusBadRequest)
		})
		r.Get("/error", func(w http.ResponseWriter, r *http.Request) {
			w.WriteHeader(http.StatusInternalServerError)
		})
		r.Get("/excluded", func(w http.ResponseWriter, r *http.Request) {
			w.WriteHeader(http.StatusOK)
		})
		r.Delete("/delete/{id}", func(w http.ResponseWriter, r *http.Request) {
			w.WriteHeader(http.StatusOK)
		})
	})

	return router
}
```

## License

Distributed under the MIT License. See ``LICENSE`` for more information.

## Contact

Dawid Wysokiński - [contact@dwysokinski.me](mailto:contact@dwysokinski.me)