Add InfoLog and ErrorLog, create helpers

cmd/web/main.go

@@ -5,8 +5,10 @@ import (
 	"fmt"
 	"log"
 	"net/http"
+	"os"
 	"time"
 
+	"github.com/abneed/bookings/helpers"
 	"github.com/abneed/bookings/internal/config"
 	"github.com/abneed/bookings/internal/handlers"
 	"github.com/abneed/bookings/internal/models"
@@ -18,6 +20,8 @@ const portNumber = ":8080"
 
 var app config.AppConfig
 var session *scs.SessionManager
+var infoLog *log.Logger
+var errorLog *log.Logger
 
 // main is the main application function
 func main() {
@@ -44,6 +48,12 @@ func run() error {
 	// change this to true when in production
 	app.InProduction = false
 
+	infoLog = log.New(os.Stdout, "INFO\t", log.Ldate|log.Ltime)
+	app.InfoLog = infoLog
+
+	errorLog = log.New(os.Stdout, "ERROR\t", log.Ldate|log.Lshortfile)
+	app.ErrorLog = errorLog
+
 	session = scs.New()
 	session.Lifetime = 24 * time.Hour
 	session.Cookie.Persist = true
@@ -64,6 +74,7 @@ func run() error {
 	repo := handlers.NewRepo(&app)
 	handlers.NewHandlers(repo)
 	render.NewTemplates(&app)
+	helpers.NewHelpers(&app)
 
 	return nil
 }

helpers/helpers.go

@@ -0,0 +1,27 @@
+package helpers
+
+import (
+	"fmt"
+	"net/http"
+	"runtime/debug"
+
+	"github.com/abneed/bookings/internal/config"
+)
+
+var app *config.AppConfig
+
+// NewHelpers sets up app config for helpers
+func NewHelpers(a *config.AppConfig) {
+	app = a
+}
+
+func ClientError(w http.ResponseWriter, status int) {
+	app.InfoLog.Println("Client error with status of", status)
+	http.Error(w, http.StatusText(status), status)
+}
+
+func ServerError(w http.ResponseWriter, err error) {
+	trace := fmt.Sprintf("%s\n%s", err.Error(), debug.Stack())
+	app.ErrorLog.Println(trace)
+	http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
+}

internal/config/config.go

@@ -12,6 +12,7 @@ type AppConfig struct {
 	UseCache      bool
 	TemplateCache map[string]*template.Template
 	InfoLog       *log.Logger
+	ErrorLog      *log.Logger
 	InProduction  bool
 	Session       *scs.SessionManager
 }