OS variables not working on configuration data

[akbarpn136]

this is an awesome go package. But I have trouble when using the OS variable on my configuration data. I am using go 1.14.

I have db.json with some data below:
{"name": "MyApp", "port": "${ APP_PORT }"}

From my go code
v, err := c.Get("port") // just return ${ APP_PORT } for the v

so I get v with value ${ APP_PORT }, not the exact value of OS.Getenv("APP_PORT").

fmt.Println(v) // ${ APP_PORT }

[miladrahimi]

I tested your sample using Go v1.14 but it worked. Please see this attachment:
Sample.zip

If you still sure it works that way please attach your code.

[akbarpn136]

Nice, everything works perfectly. It doesn't work when using feeder.JsonDirectory{Path: "./config"}. I change the code a little bit from Sample.zip:

I make .env and a config folder to store all the configs from the root folder config

|- main.go
|- .env
|- go.mod
|- config
|-- c.json

from .env
APP_PORT=8080

func main() {
	c, err := config.New(config.Options{
		Feeder: feeder.JsonDirectory{Path: "./config"},
		Env: ".env",
	})

	if err != nil {
		panic(err)
	}

	v, err := c.Get("c.port")

	fmt.Println(v, err) // it prints ${ APP_PORT } <nil>
}

What am I missing?

[miladrahimi]

This bug is fixed now. Thanks for your report.
New release:
https://github.com/golobby/config/releases/tag/v1.0.4