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Go package for parsing env vars.

The main idea is to enforce (on the package API design level) the best practice of parsing env vars: prevent duplicate names, wrong types, typos, etc. SeeWriting safe-to-use Go libraries on the design principles behind my Go packages, including this one.

Also, try outcliff, a package for safely parsing CLI args.

go get github.com/orsinium-labs/configenv

Given the following parser:

typeConfigstruct {DebugboolEnvstring}config:=Config{}vars:= configenv.Vars{"DEBUG":configenv.Required(configenv.Bool(&config.Debug)),"ENV":configenv.String(&config.Env),}err:=vars.Parse(configenv.Config{Prefix:"BE_"})

And the following env vars:

export BE_DEBUG=trueexport BE_ENV=prod

You will getConfig{Debug: true, Env: "prod"}

If you instead ofBE_DEBUG=true provideDEBUG=true,BE_DEUG=true, orBE_DEBUG=maybe, the parser will detect it and return an error.