viper
koanf
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viper
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Upload and Delete file from Amazon S3 Bucket in Go using Presigned URLs
Once environment variables are setup we need load them into our project. For this this i will use viper
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Proxy Server in Go
The code uses Viper to load configuration files in the application.
- API completa em Golang - Parte 2
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What 3rd-party libraries do you use often/all the time?
github.com/spf13/viper
- API completa em Golang - Parte 1
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Building RESTful API with Hexagonal Architecture in Go
Instead of directly accessing environment variables with os.Getenv(), integrating a configuration handler like viper might make it maintainable.
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What is the most common approach to configure a backend app?
I guess most people are using https://github.com/spf13/viper but I don't know if I should read everything from
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Could I get a code review?
Use Viper for config file or environmental variable configuration -- it's going to save you a whole lot of time.
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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.
koanf
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Nees help install knadh/koanf
LINK: https://github.com/knadh/koanf
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App init and graceful watch lib recommendations ?
For configuration, I like Koanf.
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Two ways to provide configuration: command-line, yaml file.
Of course. You should always use a good config package. caarlos0/env is okay but https://github.com/knadh/koanf is a better all around solution imo.
- Simplify Your Configurations in Go
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Golang equivalent of Python’s click (CLT framework)
You can also use Viper with urfave/cli, or you can replace Viper with knadh/koanf, which I personally prefer.
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Viper – Go Configuration with Fangs
Use viper with care. It has some dangerous fundamental flaws [1]. We got bitten hard, submitted a PR [2] and followed up for a year and a half to no avail, before I went ahead and reinvented the wheel and wrote koanf (plug), specifically to avoid viper's flaws.
Most importantly:
- Breaks JSON, YAML, TOML etc. language specs by forcibly lowercasing all keys internally. Dangerous because it can silently merge differently cased config keys into lowercase.
- Hard codes big unnecessary dependencies into the core, significantly bloating build sizes. No separation or abstraction.
[1] https://github.com/spf13/viper/pull/635
[2] https://github.com/knadh/koanf#alternative-to-viper
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Extracting embedded files
It's not hard to a) look for a key in an environment variable b) accept a key as a parameter c) load a key from a file d) all of the above with something like koanf
- What are some good open source project to read when learning Go?
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Coral, a friendly Cobra fork with nearly all its features, but only 4 dependencies
Came across this the other day https://github.com/knadh/koanf as an alternative to Viper.
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What are your favorite packages to use?
https://github.com/knadh/koanf for config management. Readme contains why it's a good alternative to viper.
What are some alternatives?
godotenv - A Go port of Ruby's dotenv library (Loads environment variables from .env files)
config - JSON or YAML configuration wrapper with convenient access methods.
envconfig - Small library to read your configuration from environment variables
konfig - Composable, observable and performant config handling for Go for the distributed processing era
cleanenv - ✨Clean and minimalistic environment configuration reader for Golang
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.
go-simple-config - open source for accessing and storing configuration
ini - Package ini provides INI file read and write functionality in Go
go-ini - Go package that encodes and decodes INI-files