rest-api-prototype/internal/app/server.go

90 lines
2.0 KiB
Go

package app
import (
"bytes"
"encoding/json"
"io/ioutil"
"log"
"net/http"
"time"
"git.pbiernat.dev/golang/rest-api-prototype/internal/app/handler"
)
type Server struct {
*http.Server
}
func NewServer(env *handler.Env) *Server {
return &Server{
&http.Server{
Handler: SetupRouter(env),
Addr: env.Addr,
WriteTimeout: 15 * time.Second,
ReadTimeout: 15 * time.Second,
IdleTimeout: 60 * time.Second,
},
}
}
func (s *Server) Start() {
log.Println("Server listening on " + s.Addr)
if err := s.ListenAndServe(); err != nil {
log.Println(err)
}
}
// func (s *Server) Shutdown(ctx context.Context) {
// log.Println("Shutting down...")
// if err := s.Shutdown(ctx); err != nil {
// log.Panicln(err)
// }
// }
func PrepareHeadersMiddleware(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/json; charset=utf-8")
w.Header().Set("Connection", "keep-alive")
w.Header().Set("Keep-Alive", "timeout=5")
next.ServeHTTP(w, r)
})
}
func ValidateJsonBodyMiddleware(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
buf, _ := ioutil.ReadAll(r.Body)
r.Body = ioutil.NopCloser(bytes.NewReader(buf)) // rollack *Request to original state
// if len(buf) > 0 {
// next.ServeHTTP(w, r)
// return
// }
// if !json.Valid(buf) {
// w.WriteHeader(http.StatusBadRequest)
// json.NewEncoder(w).Encode(handler.Error("Unable to parse JSON: " + string(buf)))
// return
// }
if len(buf) > 0 && !json.Valid(buf) {
w.WriteHeader(http.StatusBadRequest)
json.NewEncoder(w).Encode(handler.Error("Unable to parse JSON: " + string(buf)))
return
}
next.ServeHTTP(w, r)
})
}
func LoggingMiddleware(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
log.Println("Request: " + r.RequestURI + " remote: " + r.RemoteAddr + " via: " + r.UserAgent())
next.ServeHTTP(w, r)
})
}