confenv

README

conf-reader-env

The conf reader for Environment Variables.

License

MIT licensed. See the bundled LICENSE file for more details.

Documentation

Index

• func New(mapEnvKey map[string]string, prefix string) conf.Reader

Examples

• New

Functions

func New

func New(mapEnvKey map[string]string, prefix string) conf.Reader

New creates the Env reader

`mapEnvKey` is a map of the names of the environment variables and the configuration keys
`prefix` is a default prefix that will be added to all configuration keys

Example

package main

import (
	"context"
	"fmt"
	"os"

	"github.com/sv-tools/conf"

	confenv "github.com/sv-tools/conf-reader-env"
)

const envName = "TEST_FOO"

func main() {
	if err := os.Setenv(envName, "42"); err != nil {
		panic(err)
	}

	c := conf.New().WithReaders(confenv.New(map[string]string{envName: "foo"}, ""))
	if err := c.Load(context.Background()); err != nil {
		panic(err)
	}

	fmt.Println(c.GetInt("foo"))

	if err := os.Unsetenv(envName); err != nil {
		panic(err)
	}
}

Output:

42