Ljubljana, Slovenia

Advent2019

Go: implementing a microservice

We should move towards writing actual code for our service. We are writing a simple statistics collection service for tracking page views. We are going to create a database schema for collecting page views and improve things along the way.

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Docker: Building images with security in mind

When it comes to running our microservices in production, we need to build docker images. Security is unfortunately an afterthought, so let’s try to figure out what we can do to increase security so it’s better than most of the stuff out there.

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Go: Dependency injection with Wire

Our microservices ultimately need at least a database connection in order to query and store data in a MySQL database. We need to pass this object, possibly from the main() function, to our service implementation.

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Go: Generating database schema documentation

Since we are testing migrations and generating Go struct types from the database schema, we also have all the available information to generate documentation snippets for each schema. We will generate markdown formatted tables with the final database schema, after all the migrations have been applied.

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Go: Database first struct generation

As we set up our protobuf structures and data migrations, we will need to interface between them. Unfortunately, protobuf structs don’t have good support for adding go tags, so we can’t easily pin db tags to it, nor should we really. There’s always going to be some mismatching with what a RPC request/response is, and what’s actually stored in the database.

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