1. Differences between gRPC and REST APIs#

  1. gRPC utilizes HTTP/2 whereas REST utilizes HTTP 1.1
  2. gRPC utilizes the protocol buffer data format as opposed to the standard JSON data format that is typically used within REST APIs
  3. With gRPC you can utilize HTTP/2 capabilities such as server-side streaming, client-side streaming or even bidirectional-streaming should you wish.

Source: Go gRPC Beginners Tutorial | TutorialEdge.net

2. Helloworld#

2.1. Intsall protoc and plugins#

Ptotocol Buffers - David’s Blog

2.2. Install gRPC in your project# 

❯ go get -u google.golang.org/grpc

2.3. HelloWorld example#

Go gRPC Beginners Tutorial | TutorialEdge.net