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gRPC — Remote Procedure Calls

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gRPC: typed RPCs over HTTP/2

gRPC (Google Remote Procedure Call) is a high-performance RPC framework used heavily in microservices. It combines:

- Protocol Buffers (protobuf): binary serialization — compact and fast, with a typed schema - HTTP/2: multiplexed streams, header compression, bidirectional streaming - TLS: encrypted by default

You define services in a .proto file; gRPC generates client/server code in any language.

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