services/serve: split dev handler (ignite#90)

as a starting point to refactor development server.

starport/services/serve/dev.go

@@ -0,0 +1,57 @@
+package starportserve
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"github.com/gobuffalo/packr/v2"
+	"github.com/gorilla/mux"
+)
+
+// newDevHandler creates a new development server handler.
+func newDevHandler(app App) http.Handler {
+	router := mux.NewRouter()
+	devUI := packr.New("ui/dist", "../../ui/dist")
+	router.HandleFunc("/env", func(w http.ResponseWriter, r *http.Request) {
+		env := Env{app.Name, isCommandAvailable("node")}
+		js, err := json.Marshal(env)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		w.Header().Set("Content-Type", "application/json")
+		w.Write(js)
+	})
+	router.HandleFunc("/api", func(w http.ResponseWriter, r *http.Request) {
+		res, err := http.Get("http://localhost:1317/node_info")
+		if err != nil || res.StatusCode != 200 {
+			w.WriteHeader(http.StatusInternalServerError)
+			w.Write([]byte("500 error"))
+		} else if res.StatusCode == 200 {
+			w.WriteHeader(http.StatusOK)
+			w.Write([]byte("200 ok"))
+		}
+	})
+	router.HandleFunc("/rpc", func(w http.ResponseWriter, r *http.Request) {
+		res, err := http.Get("http://localhost:26657")
+		if err != nil {
+			w.WriteHeader(http.StatusInternalServerError)
+		} else if res.StatusCode == 200 {
+			w.WriteHeader(http.StatusOK)
+		} else {
+			w.WriteHeader(http.StatusInternalServerError)
+		}
+	})
+	router.HandleFunc("/frontend", func(w http.ResponseWriter, r *http.Request) {
+		res, err := http.Get("http://localhost:8080")
+		if err != nil {
+			w.WriteHeader(http.StatusInternalServerError)
+		} else if res.StatusCode == 200 {
+			w.WriteHeader(http.StatusOK)
+		} else {
+			w.WriteHeader(http.StatusInternalServerError)
+		}
+	})
+	router.PathPrefix("/").Handler(http.FileServer(devUI))
+	return router
+}

starport/services/serve/serve.go

@@ -13,8 +13,6 @@ import (
 	"path/filepath"
 	"time"
 
-	"github.com/gobuffalo/packr/v2"
-	"github.com/gorilla/mux"
 	"github.com/pkg/errors"
 	"github.com/radovskyb/watcher"
 	"github.com/tendermint/starport/starport/pkg/cmdrunner"
@@ -32,7 +30,7 @@ func Serve(ctx context.Context, app App, verbose bool) error {
 	cmdNpm.Start()
 	serveCtx, cancel := context.WithCancel(ctx)
 	startServe(serveCtx, app, verbose) // TODO handle error
-	go runDevServer(app.Name, verbose)
+	go runDevServer(app, verbose)
 	w := watcher.New()
 	w.SetMaxEvents(1)
 	go func() {
@@ -187,56 +185,13 @@ func startServe(ctx context.Context, app App, verbose bool) error {
 	return nil
 }
 
-func runDevServer(appName string, verbose bool) error {
+func runDevServer(app App, verbose bool) error {
 	if verbose {
 		fmt.Printf("🔧 Running dev interface at http://localhost:12345\n\n")
 	} else {
 		fmt.Printf("\n🚀 Get started: http://localhost:12345/\n\n")
 	}
-	router := mux.NewRouter()
-	devUI := packr.New("ui/dist", "../../ui/dist")
-	router.HandleFunc("/env", func(w http.ResponseWriter, r *http.Request) {
-		env := Env{appName, isCommandAvailable("node")}
-		js, err := json.Marshal(env)
-		if err != nil {
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
-		w.Header().Set("Content-Type", "application/json")
-		w.Write(js)
-	})
-	router.HandleFunc("/api", func(w http.ResponseWriter, r *http.Request) {
-		res, err := http.Get("http://localhost:1317/node_info")
-		if err != nil || res.StatusCode != 200 {
-			w.WriteHeader(http.StatusInternalServerError)
-			w.Write([]byte("500 error"))
-		} else if res.StatusCode == 200 {
-			w.WriteHeader(http.StatusOK)
-			w.Write([]byte("200 ok"))
-		}
-	})
-	router.HandleFunc("/rpc", func(w http.ResponseWriter, r *http.Request) {
-		res, err := http.Get("http://localhost:26657")
-		if err != nil {
-			w.WriteHeader(http.StatusInternalServerError)
-		} else if res.StatusCode == 200 {
-			w.WriteHeader(http.StatusOK)
-		} else {
-			w.WriteHeader(http.StatusInternalServerError)
-		}
-	})
-	router.HandleFunc("/frontend", func(w http.ResponseWriter, r *http.Request) {
-		res, err := http.Get("http://localhost:8080")
-		if err != nil {
-			w.WriteHeader(http.StatusInternalServerError)
-		} else if res.StatusCode == 200 {
-			w.WriteHeader(http.StatusOK)
-		} else {
-			w.WriteHeader(http.StatusInternalServerError)
-		}
-	})
-	router.PathPrefix("/").Handler(http.FileServer(devUI))
-	return http.ListenAndServe(":12345", router)
+	return http.ListenAndServe(":12345", newDevHandler(app))
 }
 
 func isCommandAvailable(name string) bool {