January 2019
Intermediate to advanced
520 pages
14h 32m
English
Content preview from Hands-On Microservices with Rust
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How gRPC works
The benefit of gRPC in comparison with JSON-RPC is speed. gRPC can work faster, because it uses a fast serialization format—Protocol Buffers. Both gRPC and Protocol Buffers were originally developed by Google and are proven in high-performance cases.
gRPC uses HTTP/2 for transport. It's a really fast and good transport protocol. First, it's binary: all requests and responses are squeezed into a compact portion of bytes and compressed. It's multiplexed: you can send a lot of requests simultaneously, but HTTP/1 demands respect for the order of requests.
gRPC needs a scheme and uses Protocol Buffers as the Interface Definition Language (IDL). Before you start writing an implementation of a service, you have to write the proto ...
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