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main.go
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main.go
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package main
import (
"context"
"fmt"
"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
"google.golang.org/grpc"
"google.golang.org/grpc/health/grpc_health_v1"
"github.com/indrasaputra/toggle/internal/app"
"github.com/indrasaputra/toggle/internal/builder"
"github.com/indrasaputra/toggle/internal/config"
gwayserver "github.com/indrasaputra/toggle/internal/grpc-gateway/server"
"github.com/indrasaputra/toggle/internal/grpc/handler"
grpcserver "github.com/indrasaputra/toggle/internal/grpc/server"
manserver "github.com/indrasaputra/toggle/internal/server"
togglev1 "github.com/indrasaputra/toggle/proto/indrasaputra/toggle/v1"
)
func main() {
cfg, err := config.NewConfig(".env")
checkError(err)
postgrePool, err := builder.BuildPostgrePgxPool(&cfg.Postgres)
checkError(err)
redisClient, err := builder.BuildRedisClient(&cfg.Redis)
checkError(err)
tracerProvider, err := app.InitTracer(cfg)
checkError(err)
dep := &builder.Dependency{
PgxPool: postgrePool,
RedisClient: redisClient,
Config: cfg,
}
grpcServer := grpcserver.NewGrpcServer(cfg.Port.Grpc)
registerGrpcService(grpcServer, dep)
gatewayServer := gwayserver.NewGrpcGateway(cfg.Port.GrpcGateway)
registerGrpcGatewayService(context.Background(), gatewayServer, fmt.Sprintf(":%s", cfg.Port.Grpc), grpc.WithInsecure())
closer := func() {
_ = tracerProvider.Shutdown(context.Background())
_ = redisClient.Close()
postgrePool.Close()
}
defer closer()
man := manserver.NewManager([]manserver.Server{grpcServer, gatewayServer})
man.Serve()
man.GracefulStop()
}
func registerGrpcService(grpcServer *grpcserver.GrpcServer, dep *builder.Dependency) {
// start register all module's gRPC handlers
command := builder.BuildToggleCommandHandler(dep)
query := builder.BuildToggleQueryHandler(dep)
health := handler.NewHealth()
grpcServer.AttachService(func(server *grpc.Server) {
togglev1.RegisterToggleCommandServiceServer(server, command)
togglev1.RegisterToggleQueryServiceServer(server, query)
grpc_health_v1.RegisterHealthServer(server, health)
})
// end of register all module's gRPC handlers
}
func registerGrpcGatewayService(ctx context.Context, gatewayServer *gwayserver.GrpcGateway, grpcPort string, options ...grpc.DialOption) {
gatewayServer.AttachService(func(server *runtime.ServeMux) error {
if err := togglev1.RegisterToggleCommandServiceHandlerFromEndpoint(ctx, server, grpcPort, options); err != nil {
return err
}
if err := togglev1.RegisterToggleQueryServiceHandlerFromEndpoint(ctx, server, grpcPort, options); err != nil {
return err
}
return nil
})
}
func checkError(err error) {
if err != nil {
panic(err)
}
}