Ljubljana, Slovenia

Engineering

Go: Introduction to Protobuf: gRPC

We implemented a Twitch RPC generator in the previous chapter, but we do have some hard core gRPC fans that requested that I should check out what gRPC produces. I am interested into comparing these two as well, so let’s start by scaffolding our gRPC handlers. Our main goal is to compare the implementation details of gRPC over Twitch RPC in more concrete terms.

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Go: Introduction to Protobuf: Services

The next step (or possibly the first step) about implementing a microservice, is defining it’s API endpoints. What people usually do is write http handlers and resort to a routing framework like go-chi/chi. But, protocol buffers can define your service, as RPC calls definitions are built into the protobuf schema.

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Go: Introduction to Protobuf: Messages

In it’s most basic ways, protocol buffers or protobufs are an approach to serialize structured data with minimal overhead. They require that the data structures be known and compatible between the client and server, unlike JSON where the structure itself is part of the encoding.

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Next level Go testing

Go makes it very easy to write tests. In fact, the test tool is built in the standard toolchain, and you can just run go test to run your tests, without installing extra dependencies or anything else. The testing package is part of the standard library, and it’s use, I’m happy to observe, is pretty wide spread.

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Testing PHP code using Docker

Setting up a testing environment can be a rewarding pursuit - if you do your testing before you deploy code, your tests can signal errors and stop you from deploying a critical mistake to production. Testing requires various software, depending on your development process. One of the most common php testing frameworks is phpunit. Let’s see how we can set up a Docker driven test environment.

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