magellan/internal/util/auth.go

37 lines
975 B
Go

package util
import (
"fmt"
"os"
"github.com/spf13/viper"
)
// LoadAccessToken() tries to load a JWT string from an environment
// variable, file, or config in that order. If loading the token
// fails with one options, it will fallback to the next option until
// all options are exhausted.
//
// Returns a token as a string with no error if successful.
// Alternatively, returns an empty string with an error if a token is
// not able to be loaded.
func LoadAccessToken(path string) (string, error) {
// try to load token from env var
testToken := os.Getenv("ACCESS_TOKEN")
if testToken != "" {
return testToken, nil
}
// try reading access token from a file
b, err := os.ReadFile(path)
if err == nil {
return string(b), nil
}
// TODO: try to load token from config
testToken = viper.GetString("access-token")
if testToken != "" {
return testToken, nil
}
return "", fmt.Errorf("failed to load token from environment variable, file, or config")
}