examples: fix some small bugs

- route before calling Run instead of concurrently
- fix the http client parsing of json response

Fixes #28

Change-Id: Iafe341cf67984abedd440eb1f13b72c12f081a97

examples/drpc_and_http/http_client/main.go

@@ -36,29 +36,16 @@ func Main(ctx context.Context) error {
 
 	// parse the response
 	var data struct {
-		Status string `json:"status"`
-
-		Response struct {
-			Cookie struct {
-				Type string `json:"type"`
-			} `json:"cookie"`
-		} `json:"response"`
-
-		Error string `json:"error"`
-		Code  int    `json:"code"`
+		Cookie struct {
+			Type string `json:"type"`
+		} `json:"cookie"`
 	}
 	err = json.NewDecoder(resp.Body).Decode(&data)
 	if err != nil {
 		return err
 	}
 
-	// confirm the rpc layer worked okay
-	if data.Status != "ok" {
-		return fmt.Errorf("unexpected rpc status %q %q %q",
-			data.Status, data.Code, data.Error)
-	}
-
 	// check the results
-	_, err = fmt.Println(data.Response.Cookie.Type)
+	_, err = fmt.Println(data.Cookie.Type)
 	return err
 }

examples/drpc_and_http/server/main.go

@@ -9,6 +9,7 @@ import (
 	"net/http"
 
 	"golang.org/x/sync/errgroup"
+
 	"storj.io/drpc/drpchttp"
 	"storj.io/drpc/drpcmigrate"
 	"storj.io/drpc/drpcmux"
@@ -58,6 +59,10 @@ func Main(ctx context.Context) error {
 	// create a listen mux that evalutes enough bytes to recognize the DRPC header
 	lisMux := drpcmigrate.NewListenMux(lis, len(drpcmigrate.DRPCHeader))
 
+	// grap the listen mux route for the DRPC Header and default handler
+	drpcLis := lisMux.Route(drpcmigrate.DRPCHeader)
+	httpLis := lisMux.Default()
+
 	// we're going to run the different protocol servers in parallel, so
 	// make an errgroup
 	var group errgroup.Group
@@ -67,9 +72,6 @@ func Main(ctx context.Context) error {
 		// create a drpc server
 		s := drpcserver.New(m)
 
-		// grap the listen mux route for the DRPC Header
-		drpcLis := lisMux.Route(drpcmigrate.DRPCHeader)
-
 		// run the server
 		// N.B.: if you want TLS, you need to wrap the drpcLis net.Listener
 		// with TLS before passing to Serve here.
@@ -82,7 +84,7 @@ func Main(ctx context.Context) error {
 		s := http.Server{Handler: drpchttp.New(m)}
 
 		// run the server
-		return s.Serve(lisMux.Default())
+		return s.Serve(httpLis)
 	})
 
 	// run the listen mux

examples/grpc_and_drpc/server/main.go

@@ -9,6 +9,7 @@ import (
 
 	"golang.org/x/sync/errgroup"
 	"google.golang.org/grpc"
+
 	"storj.io/drpc/drpcmigrate"
 	"storj.io/drpc/drpcmux"
 	"storj.io/drpc/drpcserver"
@@ -48,6 +49,10 @@ func Main(ctx context.Context) error {
 	// create a listen mux that evalutes enough bytes to recognize the DRPC header
 	lisMux := drpcmigrate.NewListenMux(lis, len(drpcmigrate.DRPCHeader))
 
+	// grap the listen mux route for the DRPC Header and default listener
+	drpcLis := lisMux.Route(drpcmigrate.DRPCHeader)
+	grpcLis := lisMux.Default()
+
 	// we're going to run the different protocol servers in parallel, so
 	// make an errgroup
 	var group errgroup.Group
@@ -61,7 +66,7 @@ func Main(ctx context.Context) error {
 		pb.RegisterCookieMonsterServer(s, cookieMonster)
 
 		// run the server
-		return s.Serve(lisMux.Default())
+		return s.Serve(grpcLis)
 	})
 
 	// drpc handling
@@ -78,9 +83,6 @@ func Main(ctx context.Context) error {
 		// create a drpc server
 		s := drpcserver.New(m)
 
-		// grap the listen mux route for the DRPC Header
-		drpcLis := lisMux.Route(drpcmigrate.DRPCHeader)
-
 		// run the server
 		// N.B.: if you want TLS, you need to wrap the drpcLis net.Listener
 		// with TLS before passing to Serve here.