allow setting of api endpoint via config

config/check.toml.example

@@ -1,5 +1,6 @@
 [general]
 
 [gridscale]
+api = "https://api.gridscale.io"
 userid = "aaaa-bbbb-cccc-dddd-eeee"
 token = "gequ6ahs6Ushiu8Oophoh3ok8zahthoh5guongiep0ichoWe1eth0Ohzaa1oum8li"

main.go

@@ -25,6 +25,7 @@ var Checker CheckCommand
 var Config CheckConfig
 
 type CheckConfig struct {
+	Api string
 	UserId string
 	Token  string
 	Client *gsclient.Client
@@ -55,13 +56,22 @@ func config(configFile string) {
 		Config.Token = viper.GetString("gridscale.token")
 	}
 
+	if viper.IsSet("gridscale.api") {
+		Config.Api = viper.GetString("gridscale.api")
+	} else {
+		Config.Api = "https://api.gridscale.io"
+	}
+
+	if Checker.Debug {
+		viper.Debug()
+	}
+
 	config := gsclient.NewConfiguration(
-		"https://api.gridscale.io",
+		Config.Api,
 		Config.UserId,
 		Config.Token,
 		Checker.Debug, true, 120, 500,100)
 	Config.Client = gsclient.NewClient(config)
-
 }
 
 func main() {