Single endpoint for web+ui (Issue #4). Migrated to modern protobuf+grpc.

internal/httpservers/restapi.go

@@ -0,0 +1,54 @@
+package httpservers
+
+import (
+	"context"
+	"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
+	log "github.com/sirupsen/logrus"
+	"google.golang.org/grpc"
+	"google.golang.org/protobuf/encoding/protojson"
+	"net/http"
+
+	gw "github.com/jamesread/OliveTin/gen/grpc"
+
+	cors "github.com/jamesread/OliveTin/internal/cors"
+
+	config "github.com/jamesread/OliveTin/internal/config"
+)
+
+var (
+	cfg *config.Config
+)
+
+func startRestAPIServer(globalConfig *config.Config) error {
+	cfg = globalConfig
+
+	log.WithFields(log.Fields{
+		"address": cfg.ListenAddressGrpcActions,
+	}).Info("Starting REST API")
+
+	ctx := context.Background()
+	ctx, cancel := context.WithCancel(ctx)
+	defer cancel()
+
+	// The JSONPb.EmitDefaults is necssary, so "empty" fields are returned in JSON.
+	//mux := runtime.NewServeMux(runtime.WithMarshalerOption(runtime.MIMEWildcard, &runtime.JSONPb{OrigName: true, EmitDefaults: true}))
+	mux := runtime.NewServeMux(
+		runtime.WithMarshalerOption(runtime.MIMEWildcard, &runtime.HTTPBodyMarshaler{
+			Marshaler: &runtime.JSONPb{
+				MarshalOptions: protojson.MarshalOptions{
+					UseProtoNames:   true,
+					EmitUnpopulated: true,
+				},
+			},
+		}),
+	)
+	opts := []grpc.DialOption{grpc.WithInsecure()}
+
+	err := gw.RegisterOliveTinApiHandlerFromEndpoint(ctx, mux, cfg.ListenAddressGrpcActions, opts)
+
+	if err != nil {
+		log.Fatalf("gw error %v", err)
+	}
+
+	return http.ListenAndServe(cfg.ListenAddressRestActions, cors.AllowCors(mux))
+}