chore: Restructure package directories

cmd/api/api.go

@@ -0,0 +1,77 @@
+package main
+
+import (
+	"embed"
+	"io/fs"
+	"net/http"
+	"time"
+
+	"github.com/mr-karan/doggo/internal/app"
+	"github.com/mr-karan/doggo/pkg/utils"
+	"github.com/sirupsen/logrus"
+
+	"github.com/go-chi/chi"
+	"github.com/go-chi/chi/middleware"
+	"github.com/knadh/koanf"
+)
+
+var (
+	logger = utils.InitLogger()
+	ko     = koanf.New(".")
+	// Version and date of the build. This is injected at build-time.
+	buildVersion = "unknown"
+	buildDate    = "unknown"
+	//go:embed assets/*
+	assetsDir embed.FS
+	//go:embed index.html
+	html []byte
+)
+
+func main() {
+	initConfig()
+
+	// Initialize app.
+	app := app.New(logger, buildVersion)
+
+	// Register router instance.
+	r := chi.NewRouter()
+
+	// Register middlewares
+	r.Use(middleware.RequestID)
+	r.Use(middleware.RealIP)
+	r.Use(middleware.Logger)
+	r.Use(middleware.Recoverer)
+
+	// Frontend Handlers.
+	assets, _ := fs.Sub(assetsDir, "assets")
+	r.Get("/assets/*", func(w http.ResponseWriter, r *http.Request) {
+		fs := http.StripPrefix("/assets/", http.FileServer(http.FS(assets)))
+		fs.ServeHTTP(w, r)
+	})
+	r.Get("/", func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Add("Content-Type", "text/html")
+		w.Write(html)
+	})
+
+	// API Handlers.
+	r.Get("/api/", wrap(app, handleIndexAPI))
+	r.Get("/api/ping/", wrap(app, handleHealthCheck))
+	r.Post("/api/lookup/", wrap(app, handleLookup))
+
+	// HTTP Server.
+	srv := &http.Server{
+		Addr:         ko.String("server.address"),
+		Handler:      r,
+		ReadTimeout:  ko.Duration("server.read_timeout") * time.Millisecond,
+		WriteTimeout: ko.Duration("server.write_timeout") * time.Millisecond,
+		IdleTimeout:  ko.Duration("server.keepalive_timeout") * time.Millisecond,
+	}
+
+	logger.WithFields(logrus.Fields{
+		"address": srv.Addr,
+	}).Info("starting server")
+
+	if err := srv.ListenAndServe(); err != nil {
+		logger.Fatalf("couldn't start server: %v", err)
+	}
+}