Is Viper necessary if my app is only using environment variables?

This page summarizes the projects mentioned and recommended in the original post on /r/golang

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  • kelseyhightower/envconfig

    Golang library for managing configuration data from environment variables

  • If you are using only env vars to configure your app I would highly recommend this lightweight library https://github.com/kelseyhightower/envconfig

  • koanf

    Simple, extremely lightweight, extensible, configuration management library for Go. Support for JSON, TOML, YAML, env, command line, file, S3 etc. Alternative to viper.

  • I use Koanf, much simpeler with the same options https://github.com/knadh/koanf

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NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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