GO GRPC BASIC

Requirements ( Do It Letter )

Setup Project

• create proto dir
• create versioning dir and service dir health
• create proto file health.proto
• compile / generate proto with compile-proto.sh in proto dir

Setup config file

• create config.yaml
• create pkg dir , create versioning dir and create configs dir
• go get gopkg.in/yaml.v2 , is a lib for parsing yaml config file to struct
• create config.go file, implement New and other func
• create configs dir on root project , create configs.go, this is file that bundle or wrap any services or packages
• go get github.com/sirupsen/logrus, is a lib to show log on run
• implement New to configs.go file
• create main.go, implement to call config and log environtment read is ready
• test go run .

Implement Server GRPC

• create utils/constants dir in pkg/v1, to create global constants, implement EnvProduction, Successcode, SuccessDesc
• implement grpc service create api/v1/health service, create health.go as server service
• create api/v1/health/status.go as method implment from protobuf / pb file
• create router dir in root project
• create grpc.go in router dir and implement NewGRPCServer and register health api service
• go get github.com/soheilhy/cmux, is for ?
• create router.go in router dir and implement IgnoreErr, this is for ignore error so can be safely ignore
• go get golang.org/x/sync/errgroup, is for ?
• implement main.go to create grpc server from grpc.go with errgroup handler
• go install github.com/fullstorydev/grpcurl/cmd/grpcurl@latest
• test grpcurl -plaintext localhost:5566 list, to show list name of services
• test grpcurl -plaintext localhost:5566 list api.gogrpc.v1.health.HealthService, to show list name of service methods
• test grpcurl -plaintext localhost:5566 api.gogrpc.v1.health.HealthService.Status, to test method call in grpc
• result

{
    "success": true,
    "code": "0000",
    "desc": "SUCCESS"
}

• or test via postman , new -> grpc request -> Enter Server Url : localhost:5566 -> Import proto file / Select Method : Status -> Click Invoke