Questions tagged [go]
Go, also called golang, is an open source programming language initially developed at Google. It is a statically-typed language with syntax loosely derived from that of C, adding automatic memory management, type safety, some dynamic-typing capabilities, additional built-in types such as variable-length arrays and key-value maps, and a large standard library.
146 questions
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what is the term for a integer variable containing bit fields
If I have a variable that is intended to to be used with bitmasks, to retrieve values, i.e. bit fields and flags, what is the academic term for such a variable? If the (bit) fields are a analogous to ...
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why would one use the "Functional Options" pattern in go?
I just learned about the Functional Options pattern in golang. what are the benefits of using it over just allowing to pass a config struct and just overriding the default values provided in the ...
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Go, Error Handling, and Big Text Files - express error semantics in types
The title Go, Error Handling, and Big Text Files is a blog post from Wesley Aptekar-Cassels from 2021. In this blog post he reports about a problem he faced parsing long text files. He tried scanner :=...
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How to handle different json response for the same api rest endpoint and different http status
I have an endpoint similar to GET ../produtcs/123 where 123 stands for an ID. The REST service response with either status 200 and a json object A {"deliveryData": {"status": 200, ...
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Is there any logical reason to "store" just one object file (.o) into archival file (.a)?
As far as I understand (not much), the archival .a file is just, roughly speaking, the collection/batch of object .o files. It's like a library of compiled code that can be cached and which can be ...
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Seeking a Third Opinion on Kafka Consumer Implementation and Architectural Disagreements
I've been at my current job for about 4-5 months, mainly working with Go, and I have no prior experience with Kafka. Before this, my background was in JavaScript, Node.js, React, etc. I recently got a ...
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golang: pattern for handling message queues? Are named functions anti-idiomatic somehow?
Had a discussion today in how to implement services that work with messages coming in from event queues. We call these services processors. One of us argues for using several functions, while the ...
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Should Golang 'private' methods need unit tests?
I'm relatively new to Go but I come from a C#/OOP background where unit testing private methods isn't something that's generally done. I currently have a senior developer telling me it's "bad ...
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High Throughput Concurrent Map Access and Periodic Updates Causing Contention and Latency Spikes
I am working on a Go application where two concurrent maps, products and productCatalog, are accessed by numerous threads in live traffic to retrieve data at high throughput. These maps are populated ...
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Domain-Driven Design: Storage layer and MySQL client
I'm very new in DDD and I was following one of the videos of GohperCon to structure of my Golang App using DDD with Hexagonal Architecture. At the lowest (deepest) layer is the storage that can be ...
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design pattern to avoid deadlock with mutex in golang
What would the appropriate design pattern to avoid deadlock when several functions use the same mutex ? It is quite easy to forget what method uses the lock and so it happens that you call a function ...
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Cheap But Effective Solution for Logging in a private rest microservices backend api
I've created a backend following a microservices architecture and now I need to implement logging. my understanding After reading some articles about this topic, I've listed below some "pretty ...
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How are interfaces implemented behind the scenes in the Go language?
I have read this article which indicates a double tuple structure, but it is unfortunately light on implementation details, which is what I am looking for. So... how are interfaces implemented in Go? ...
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Creating a new type as slice of strings in Rust?
I have a little bit of experience with Go, that I have been trying to use as a reference point to wrap my mind around Rust via a cards game I wrote in Go that I would like to now write in Rust. I know ...
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Making side effects explicit even in non-pure functions
I try to have as many pure functions as possible, but if I can't, I at least try to make the side effects as explicit as possible. Here is an example (in Go) type State struct { count int } func (...
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