Example Service: hello

A simple example service that demonstrates how to use a Hoster instance to host a service with gRPC and HTTP endpoints.

Prerequisites

• Install gRPC
  • Make sure protoc is in GOPATH/bin
  • Make sure google/protobuf is also in GOPATH/bin
• Install grpc-gateway

Run the server

• Insecure
  • go run cmd/server/main.go
• With TLS
  • go run cmd/server/main.go -cert-file ../../testdata/test.crt -key-file ../../testdata/test.key -insecure-skip-verify

NOTE: insecure-skip-verify is only used for testing when the host name does not need to be verified and should not be used in production.

Test the gRPC endpoint with the command-line client

• Insecure
  • go run cmd/client/main.go -insecure -name eleniums
• With TLS
  • go run cmd/client/main.go -insecure-skip-verify -name eleniums

Test the HTTP endpoint with curl

• Insecure
  • curl http://127.0.0.1:9090/v1/hello?name=eleniums
• With TLS
  • curl -k https://127.0.0.1:9090/v1/hello?name=eleniums

Test the debug endpoint

• Enable the debug endpoint when running the service:
  • go run cmd/server/main.go -enable-debug
• Navigate to:
  • http://127.0.0.1:6060/debug/pprof
  • http://127.0.0.1:6060/debug/vars

Regenerate client/server from proto

• Use go:generate to build client/server and swagger docs:
  • go generate