gRPC [Golang] Master Class Build Modern API and Microservices - What's a Client Streaming API?

The video tutorial explains client streaming APIs, which allow clients to send multiple messages to a server and receive a single response. It discusses when to use client streaming, such as in big data contexts or when server processing is expensive. The tutorial also covers implementing client streaming using protocol buffers, highlighting the need to define request and response messages and use the stream keyword.

Describe the structure of a request and response message in protocol buffers for streaming.

What is the significance of the 'stream' keyword in the context of client streaming?