zap
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zap
- Desvendando o package fmt do Go
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Building RESTful API with Hexagonal Architecture in Go
The project currently uses slog package from standard library for logging. But switching to a more advanced logger like zap could offer more flexibility and features.
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Structured Logging with Slog
It's nice to have this in the standard library, but it doesn't solve any existing pain points around structured log metadata and contexts. We use zap [0] and store a zap logger on the request context which allows different parts of the request pipeline to log with things like tenantid, traceId, and correlationId automatically appended. But getting a logger off the context is annoying, leads to inconsistent logging practices, and creates a logger dependency throughout most of our Go code.
[0] https://github.com/uber-go/zap
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Kubebuilder Tips and Tricks
Kubebuilder, like much of the k8s ecosystem, utilizes zap for logging. Out of the box, the Kubebuilder zap configuration outputs a timestamp for each log, which gets formatted using scientific notation. This makes it difficult for me to read the time of an event just by glancing at it. Personally, I prefer ISO 8601, so let's change it!
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Go 1.21 Released
What else would you expect from a structured logging package?
To me it absolutely makes sense as the default and standard for 99% of applications, and the API isn't much unlike something like Zap[0] (a popular Go structured logger).
The attributes aren't an "arbitrary" concept, they're a completely normal concept for structured loggers. Groups are maybe less standard, but reasonable nevertheless.
I'm not sure if you're aware that this is specifically a structured logging package. There already is a "simple" logging package[1] in the sodlib, and has been for ages, and isn't particularly fast either to my knowledge. If you want really fast you take a library (which would also make sure to optimize allocations heavily).
[0]: https://pkg.go.dev/go.uber.org/zap
[1]: https://pkg.go.dev/log
- Efficient logging in Go?
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Why elixir over Golang
And finally for structured logging: https://github.com/uber-go/zap
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Beginner-friendly API made with Go following hexagonal architecture.
For logging: I recommend using Uber Zap https://github.com/uber-go/zap It will log stack backtraces and makes it super easy to debug errors when deployed. I typically log in the business logic and not below. And log at the entry for failures to start the system. Maybe not necessary for this example, but it’s an essential piece of any API backend.
- slogx - slog package extensions and middlewares
- Why it is so weirdo??
Gin
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How to Build and Document a Go REST API with Gin and Go-Swagger
Now let’s define the functions that will be called whenever a request hits our API. All the functions will be referencing the context provided by the Gin web framework. Paste the following code below the sample slice we just added to api.go:
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Password-less Login in Go from Scratch
We will be using Gorilla Mux. As per their last update, they have a new group of maintainers, and their repos have shown activity to confirm that. The tutorial can be easily replicated in any other framework or library as well. So, while we will be using Gorilla Mux, you can try to replicate it in Gin or Fiber as well.
- Autenticação com Golang e AWS Cognito
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Implementing JWT Authentication in a Golang Application
Now, let's dive into the fun part – creating our basic ToDo application using the powerful Gin framework. This section will walk you through the steps, breaking down the code into manageable snippets.
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Build a Serverless GenAI solution with Lambda, DynamoDB, LangChain and Amazon Bedrock
Thanks to the AWS Lambda Web Adapter, the application built as a (good old) REST/HTTP API using a familiar library (in this case, Gin.
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From Django or Flask to Sponge: How to Easily Develop High-Performance Web Services with Golang
Excellent Performance: Sponge is built on the gin framework, providing outstanding performance for web service development.
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Uploading and Serving Images from MongoDB in Golang
In this blog, we will delve into the fascinating realm of handling images in a Golang application, leveraging the power of the Gin framework for RESTful API development, MongoDB as a robust NoSQL database, and the mongo-driver library for seamless interaction with MongoDB. To store images efficiently, we'll explore the intricacies of GridFS, a specification within MongoDB for storing large files as separate chunks.
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Building RESTful API with Hexagonal Architecture in Go
It uses Gin as the HTTP framework and PostgreSQL as the database with pgx as the driver and Squirrel as the query builder. It also utilizes Redis as the caching layer with go-redis as the client.
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Different CORS settings for different paths?
I have created an application with Go in Gin-Gonic. In my frontend (Nuxt3/TypeScript) I always get a CORS error:
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Rapid Prototyping of Design-First APIs in Go
We use Gin web framework https://gin-gonic.com for the routing, Gin provides a balance between performance, ease of use and extensibility making it a preferred choice for building and running web applications in Go.
What are some alternatives?
logrus - Structured, pluggable logging for Go.
Fiber - ⚡️ Express inspired web framework written in Go
zerolog - Zero Allocation JSON Logger
mux - A powerful HTTP router and URL matcher for building Go web servers with 🦍
slog
chi - lightweight, idiomatic and composable router for building Go HTTP services
glog - Leveled execution logs for Go
Echo - High performance, minimalist Go web framework
go-log - a golang log lib supports level and multi handlers
Beego - beego is an open-source, high-performance web framework for the Go programming language.
log - Structured logging package for Go.
Iris - The fastest HTTP/2 Go Web Framework. New, modern and easy to learn. Fast development with Code you control. Unbeatable cost-performance ratio :rocket: