renamed modules

backend/apps/api.go

@@ -0,0 +1,92 @@
+package apps
+
+import (
+	"context"
+	"fmt"
+	"github.com/apex/log"
+	"github.com/crawlab-team/crawlab-core/config"
+	"github.com/crawlab-team/crawlab-core/middlewares"
+	"github.com/crawlab-team/crawlab-core/routes"
+	"github.com/crawlab-team/crawlab-db/mongo"
+	"github.com/crawlab-team/crawlab-db/redis"
+	"github.com/crawlab-team/go-trace"
+	"github.com/gin-gonic/gin"
+	"github.com/spf13/viper"
+	"net"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+)
+
+type Api struct {
+	app *gin.Engine
+}
+
+func (svc *Api) Init() {
+	// initialize config
+	_ = svc.initService("config", config.InitConfig)
+
+	// initialize mongo
+	_ = svc.initService("mongo", mongo.InitMongo)
+
+	// initialize redis
+	_ = svc.initService("redis", redis.InitRedis)
+
+	// initialize middlewares
+	_ = svc.initServiceWithApp("middlewares", middlewares.InitMiddlewares)
+
+	// initialize routes
+	_ = svc.initServiceWithApp("routes", routes.InitRoutes)
+}
+
+func (svc *Api) Run() {
+	host := viper.GetString("server.host")
+	port := viper.GetString("server.port")
+	address := net.JoinHostPort(host, port)
+	srv := &http.Server{
+		Handler: svc.app,
+		Addr:    address,
+	}
+	go func() {
+		if err := srv.ListenAndServe(); err != nil {
+			if err != http.ErrServerClosed {
+				log.Error("run server error:" + err.Error())
+			} else {
+				log.Info("server graceful down")
+			}
+		}
+	}()
+	quit := make(chan os.Signal, 1)
+	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
+	<-quit
+	ctx2, cancel := context.WithTimeout(context.Background(), 20*time.Second)
+	defer cancel()
+	if err := srv.Shutdown(ctx2); err != nil {
+		log.Error("run server error:" + err.Error())
+	}
+}
+
+func (svc *Api) initServiceWithApp(name string, fn func(app *gin.Engine) error) (err error) {
+	return svc.initService(name, func() error {
+		return fn(svc.app)
+	})
+}
+
+func (svc *Api) initService(name string, fn func() error) (err error) {
+	if err := fn(); err != nil {
+		log.Error(fmt.Sprintf("init %s error: %s", name, err.Error()))
+		_ = trace.TraceError(err)
+		panic(err)
+	}
+	log.Info(fmt.Sprintf("initialized %s successfully", name))
+	return nil
+}
+
+func NewApi() *Api {
+	app := gin.New()
+	return &Api{
+		app: app,
+	}
+}

backend/apps/base.go

@@ -0,0 +1,6 @@
+package apps
+
+type App interface {
+	Init()
+	Run()
+}