Client Streaming Explained

Welcome to client streaming! In gRPC, client streaming is a communication pattern where the client sends a sequence of messages to the server.

Unlike a simple unary RPC (request-response), the client doesn't just send one message. Instead, it sends a stream of messages, and the server processes them, then sends back a single response at the end.

Imagine uploading a large file by sending it in many small chunks. The server collects all chunks, rebuilds the file, and then sends a single "upload complete" confirmation.

• The client initiates the RPC.
• The client sends multiple messages asynchronously.
• The server receives and processes these messages.
• Once the client finishes sending (signals completion), the server sends back a single response.