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← all concepts

gRPC.

also: GRPC

A remote procedure call framework from Google: Protocol Buffers over HTTP/2, with generated client and server stubs.

the two-minute refresher

Protobuf is a typed binary format: smaller and faster to (de)serialise than JSON.
HTTP/2 gives multiplexing and streaming: unary, server-streaming, client-streaming and bidirectional calls.
Code is generated from .proto files for many languages.
Great between services; browsers and public APIs usually stay on REST/JSON.

Where the course teaches it

W00 · Part 4Networking Fundamentals for System Designlearn it →W00 · Part 4Networking Fundamentals for System Designrevisit →

Related concepts

HTTP/2