viper
Go configuration with fangs (by spf13)
env
A simple and zero-dependencies library to parse environment variables into structs. (by caarlos0)
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The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
viper
Posts with mentions or reviews of viper.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-04-17.
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Which packages do you recommend for building cli tools?
Cobra and Viper.
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Library for Python similar to Go's Viper / 12 Factor
I've mostly been using https://github.com/spf13/viper of late for my go projects. It supports the standard config formats, (json, yaml, toml etc) and lets you override any value with a ENV value.
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Two ways to provide configuration: command-line, yaml file.
Not only that, the "unmarshall to struct" method doesn't work at all for environment variables. https://github.com/spf13/viper/issues/188
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Tools besides Go for a newbie
IDE: use whatever make you productive. I personally use vscode. VCS: git, as golang communities use github heavily as base for many libraries. AFAIK Linter: use staticcheck for linting as it looks like mostly used linting tool in go, supported by many also. In Vscode it will be recommended once you install go plugin. Libraries/Framework: actually the standard libraries already included many things you need, decent enough for your day-to-day development cycles(e.g. `net/http`). But here are things for extra: - Struct fields validator: validator - Http server lib: chi router , httprouter , fasthttp (for non standard http implementations, but fast) - Web Framework: echo , gin , fiber , beego , etc - Http client lib: most already covered by stdlib(net/http), so you rarely need extra lib for this, but if you really need some are: resty - CLI: cobra - Config: godotenv , viper - DB Drivers: sqlx , postgre , sqlite , mysql - nosql: redis , mongodb , elasticsearch - ORM: gorm , entgo , sqlc(codegen) - JS Transpiler: gopherjs - GUI: fyne - grpc: grpc - logging: zerolog - test: testify , gomock , dockertest - and many others you can find here
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Ultimate config for Go applications
Is this sufficiently better than https://github.com/spf13/viper to warrant a switch?
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[QUESTION] - How would I Read from multiple config files and environment variables?
I'm using https://github.com/spf13/viper for configuration manager.
Ya, I think this issue explains one of the problems: https://github.com/spf13/viper/issues/761
- Use TOML for `.env` Files?
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How To Work With Multiple Go Files?
There are some Go packages that can make config easy such as Viper or what I'll do in some of my quick/simple projects is to have a Config struct that I load from a JSON file. You can .gitignore the JSON file, and have your program on first startup write a default JSON file with some sensible default settings (like randomized secret keys for your cookies or JWT tokens and await only your database and email credentials to be filled in).
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In NodeJS I can encapsulate different start-up command for different mode (dev, production) with package.json. then after that it will get the .env file for the correct environment mode. How to archive the same things in golang ?
I'll also add that we set our configuration as structs, and use https://github.com/spf13/viper to load the structure from TOML.
env
Posts with mentions or reviews of env.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-03-24.
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Safely Load Environment Variables
How is this compared to https://github.com/caarlos0/env
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From Go on EC2 to Fly.io: +fun, −$9/mo
One could consider using https://github.com/caarlos0/env instead of the hand-woven
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I created a library for parsing environment variables "envparse"
It seems https://github.com/caarlos0/env does all of that too, have you tried it?
These are a few reasons my team is using https://github.com/caarlos0/env
- A new method of configuration load in Golang
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Configuration in microservices
Consider something like this library that allows loading of environment variables into a struct.
- 'Discoverable' Environment Variables for Configuration
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azcfg - Azure Key Vault secrets to struct
The pattern with using struct tags was inspired by the eminent module env (https://github.com/caarlos0/env).
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Gerenciando as variáveis de ambiente do seu projeto Golang
https://github.com/caarlos0/env.
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A lightweight package for loading environment variables into structs
How does it compare with https://github.com/caarlos0/env ?
What are some alternatives?
When comparing viper and env you can also consider the following projects:
godotenv - A Go port of Ruby's dotenv library (Loads environment variables from .env files)
envconfig - Small library to read your configuration from environment variables
koanf - Simple, extremely lightweight, extensible, configuration management library for Go. Support for JSON, TOML, YAML, env, command line, file, S3 etc. Alternative to viper.
kelseyhightower/envconfig - Golang library for managing configuration data from environment variables
mapstructure - Go library for decoding generic map values into native Go structures and vice versa.
ini - Package ini provides INI file read and write functionality in Go
cleanenv - ✨Clean and minimalistic environment configuration reader for Golang
goConfig - goconfig uses a struct as input and populates the fields of this struct with parameters from command line, environment variables and configuration file.
config - JSON or YAML configuration wrapper with convenient access methods.
go-toml - Go library for the TOML file format
validator - :100:Go Struct and Field validation, including Cross Field, Cross Struct, Map, Slice and Array diving