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Not OP, but I design my Go projects with a very similar pattern that I learned from OP's 2018 post.
I think this is a pretty good example of a real-world implementation:
https://github.com/mtlynch/picoshare
Particularly these files:
https://github.com/mtlynch/picoshare/blob/2cd9979dab084ca781...
https://github.com/mtlynch/picoshare/blob/2cd9979dab084ca781...
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InfluxDB
InfluxDB high-performance time series database. Collect, organize, and act on massive volumes of high-resolution data to power real-time intelligent systems.
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https://github.com/ogen-go/ogen
Write openapi definition, it'll do routing, definition of structs, validation of JSON schemas, etc.
All I need to do is implement the service.
Validating an integer range for a querystring parameter is just too boring. And too easy to mistype when writing it manually.
Anyways, so far only been playing, so haven't found the bad parts yet.
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I wrote a static config class that reads configuration for the entire app / server from a JSON or YAML file ( https://github.com/uber/zanzibar/blob/master/runtime/static_... ).
Once you've loaded it and mutated it for testing purposes or for copying from ENV vars into the config, you can then freeze it before passing it down to all your app level code.
Having this wrapper object that can be frozen and has a `get()` method to read JSON like data make it effectively not mutable.
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I found fx(https://github.com/uber-go/fx) to be a super simple yet versatile tool to design my application around.
All the advice in the article is still helpful, but it takes the "how do I make sure X is initialized when Y needs it" part completely out of the equation and reduces it from an N*M problem to an N problem, ie I only have to worry about how to initialize individual pieces, not about how to synchronize initialization between them.
I've used quite a few dependency injection libraries in various languages over the years (and implemented a couple myself) and the simplicity and versatility of fx makes it my favorite so far.
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out of curiosity, why no sort-of-established pkg and internal dirs? What do you think of https://github.com/photoprism/photoprism structure?
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huma
A modern, simple, fast & flexible micro framework for building HTTP REST/RPC APIs in Go backed by OpenAPI 3 and JSON Schema.
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CodeRabbit
CodeRabbit: AI Code Reviews for Developers. Revolutionize your code reviews with AI. CodeRabbit offers PR summaries, code walkthroughs, 1-click suggestions, and AST-based analysis. Boost productivity and code quality across all major languages with each PR.
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Because go doesn’t have exhaustiveness checking when initialising structs. Instead it encourages “make the zero value meaningful” which is not always possible not desirable. I usually use a linter to catch this kind of problem https://github.com/GaijinEntertainment/go-exhaustruct
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So far I like the commonly used approach in the Typescript community best:
1. Create your Schema using https://zod.dev or https://github.com/sinclairzx81/typebox
2. Generate your Types from the schema. It's very simple to create partial or composite types, e.g. UpdateModel, InsertModels, Arrays of them, etc.
3. Most modern Frameworks have first class support for validation, like is a great example Fastify (with typebox). Just reuse your schema definition.
That is very easy, obvious and effective.
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So far I like the commonly used approach in the Typescript community best:
1. Create your Schema using https://zod.dev or https://github.com/sinclairzx81/typebox
2. Generate your Types from the schema. It's very simple to create partial or composite types, e.g. UpdateModel, InsertModels, Arrays of them, etc.
3. Most modern Frameworks have first class support for validation, like is a great example Fastify (with typebox). Just reuse your schema definition.
That is very easy, obvious and effective.
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it lacks flexibility but i really enjoy grpc-gateway for 99% of my work
https://github.com/grpc-ecosystem/grpc-gateway
