feat: add gRPC gateway to serve both gRPC api and HTTP api

Makefile

@@ -35,8 +35,9 @@ mock:
 	mockgen -package mockdb -destination db/mock/store.go github.com/cukhoaimon/SimpleBank/db/sqlc Store
 
 proto:
-	protoc --proto_path=proto --go_out=pb --go_opt=paths=source_relative \
-	--go-grpc_out=pb --go-grpc_opt=paths=source_relative \
+	protoc --proto_path=proto --go_out=pb --go_opt paths=source_relative \
+	--go-grpc_out=pb --go-grpc_opt paths=source_relative \
+	 --grpc-gateway_out=pb --grpc-gateway_opt paths=source_relative \
 	proto/*.proto
 
 tidy:

go.mod

@@ -8,12 +8,14 @@ require (
 	github.com/golang-jwt/jwt/v5 v5.2.0
 	github.com/golang/mock v1.6.0
 	github.com/google/uuid v1.6.0
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.19.1
 	github.com/lib/pq v1.10.9
 	github.com/o1egl/paseto v1.0.0
 	github.com/spf13/viper v1.18.2
 	github.com/stretchr/testify v1.8.4
 	golang.org/x/crypto v0.18.0
-	google.golang.org/grpc v1.59.0
+	google.golang.org/grpc v1.61.0
+	google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.3.0
 	google.golang.org/protobuf v1.32.0
 )
 
@@ -60,7 +62,9 @@ require (
 	golang.org/x/net v0.20.0 // indirect
 	golang.org/x/sys v0.16.0 // indirect
 	golang.org/x/text v0.14.0 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20231120223509-83a465c0220f // indirect
+	google.golang.org/genproto v0.0.0-20240116215550-a9fa1716bcac // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20240125205218-1f4bbc51befe // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240125205218-1f4bbc51befe // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -48,11 +48,13 @@ github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaS
 github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg=
 github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
-github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
-github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/grpc-ecosystem/grpc-gateway/v2 v2.19.1 h1:/c3QmbOGMGTOumP2iT/rCwB7b0QDGLKzqOmktBjT+Is=
+github.com/grpc-ecosystem/grpc-gateway/v2 v2.19.1/go.mod h1:5SN9VR2LTsRFsrEC6FHgRbTWrTHu6tqPeKxEQv15giM=
 github.com/hashicorp/hcl v1.0.0 h1:0Anlzjpi4vEasTeNFn2mLJgTSwt0+6sfsiTG8qcWGx4=
 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
 github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
@@ -168,17 +170,23 @@ golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8T
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20231120223509-83a465c0220f h1:ultW7fxlIvee4HYrtnaRPon9HpEgFk5zYpmfMgtKB5I=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20231120223509-83a465c0220f/go.mod h1:L9KNLi232K1/xB6f7AlSX692koaRnKaWSR0stBki0Yc=
-google.golang.org/grpc v1.59.0 h1:Z5Iec2pjwb+LEOqzpB2MR12/eKFhDPhuqW91O+4bwUk=
-google.golang.org/grpc v1.59.0/go.mod h1:aUPDwccQo6OTjy7Hct4AfBPD1GptF4fyUjIkQ9YtF98=
+google.golang.org/genproto v0.0.0-20240116215550-a9fa1716bcac h1:ZL/Teoy/ZGnzyrqK/Optxxp2pmVh+fmJ97slxSRyzUg=
+google.golang.org/genproto v0.0.0-20240116215550-a9fa1716bcac/go.mod h1:+Rvu7ElI+aLzyDQhpHMFMMltsD6m7nqpuWDd2CwJw3k=
+google.golang.org/genproto/googleapis/api v0.0.0-20240125205218-1f4bbc51befe h1:0poefMBYvYbs7g5UkjS6HcxBPaTRAmznle9jnxYoAI8=
+google.golang.org/genproto/googleapis/api v0.0.0-20240125205218-1f4bbc51befe/go.mod h1:4jWUdICTdgc3Ibxmr8nAJiiLHwQBY0UI0XZcEMaFKaA=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20240125205218-1f4bbc51befe h1:bQnxqljG/wqi4NTXu2+DJ3n7APcEA882QZ1JvhQAq9o=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20240125205218-1f4bbc51befe/go.mod h1:PAREbraiVEVGVdTZsVWjSbbTtSyGbAgIIvni8a8CD5s=
+google.golang.org/grpc v1.61.0 h1:TOvOcuXn30kRao+gfcvsebNEa5iZIiLkisYEkf7R7o0=
+google.golang.org/grpc v1.61.0/go.mod h1:VUbo7IFqmF1QtCAstipjG0GIoq49KvMe9+h1jFLBNJs=
+google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.3.0 h1:rNBFJjBCOgVr9pWD7rs/knKL4FRTKgpZmsRfV214zcA=
+google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.3.0/go.mod h1:Dk1tviKTvMCz5tvh7t+fh94dhmQVHuCt2OzJB3CTW9Y=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.32.0 h1:pPC6BG5ex8PDFnkbrGU3EixyhKcQ2aDuBS36lqK/C7I=
 google.golang.org/protobuf v1.32.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
-gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/ini.v1 v1.67.0 h1:Dgnx+6+nfE+IfzjUEISNeydPJh9AXNNsWbGP9KzCsOA=
 gopkg.in/ini.v1 v1.67.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

main.go

@@ -1,13 +1,17 @@
 package main
 
 import (
+	"context"
 	"database/sql"
 	"github.com/cukhoaimon/SimpleBank/gapi"
 	"github.com/cukhoaimon/SimpleBank/pb"
+	"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/reflection"
+	"google.golang.org/protobuf/encoding/protojson"
 	"log"
 	"net"
+	"net/http"
 
 	"github.com/cukhoaimon/SimpleBank/api"
 	db "github.com/cukhoaimon/SimpleBank/db/sqlc"
@@ -29,6 +33,8 @@ func main() {
 	}
 
 	store := db.NewStore(conn)
+
+	go runGatewayServer(store, config)
 	runGRPCServer(store, config)
 }
 
@@ -46,7 +52,7 @@ func runGinServer(store db.Store, config utils.Config) {
 func runGRPCServer(store db.Store, config utils.Config) {
 	server, err := gapi.NewServer(store, config)
 	if err != nil {
-		log.Fatal("Cannot create gRPC server")
+		log.Fatalf("Cannot create gRPC server: %s", err)
 	}
 
 	gRPCServer := grpc.NewServer()
@@ -56,11 +62,49 @@ func runGRPCServer(store db.Store, config utils.Config) {
 
 	listener, err := net.Listen("tcp", config.GrpcServerAddress)
 	if err != nil {
-		log.Fatal("Cannot create tcp-listener for gRPC server")
+		log.Fatalf("Cannot create tcp-listener for gRPC server: %s", err)
 	}
 
 	log.Printf("start gRPC server at: %s", listener.Addr().String())
 	if err = gRPCServer.Serve(listener); err != nil {
-		log.Fatal("Cannot serve gRPC server")
+		log.Fatalf("Cannot serve gRPC server: %s", err)
+	}
+}
+
+func runGatewayServer(store db.Store, config utils.Config) {
+	server, err := gapi.NewServer(store, config)
+	if err != nil {
+		log.Fatalf("Cannot create gRPC server: %s", err)
+	}
+
+	jsonOpts := runtime.WithMarshalerOption(runtime.MIMEWildcard, &runtime.JSONPb{
+		MarshalOptions: protojson.MarshalOptions{
+			UseProtoNames: true,
+		},
+		UnmarshalOptions: protojson.UnmarshalOptions{
+			DiscardUnknown: true,
+		},
+	})
+
+	grpcMux := runtime.NewServeMux(jsonOpts)
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	if err = pb.RegisterSimpleBankHandlerServer(ctx, grpcMux, server); err != nil {
+		log.Fatalf("Cannot register handler server: %s", err)
+	}
+
+	mux := http.NewServeMux()
+	mux.Handle("/", grpcMux)
+
+	listener, err := net.Listen("tcp", config.HttpServerAddress)
+	if err != nil {
+		log.Fatalf("Cannot create tcp-listener for gateway server: %s", err)
+	}
+
+	log.Printf("start HTTP gateway server at: %s", listener.Addr().String())
+	if err = http.Serve(listener, mux); err != nil {
+		log.Fatalf("cannot HTTP gateway server: %s", err)
 	}
 }