[FIXED] scala read the configs dynamically during run time

Issue

I have a config file in the below folder subtract

main
    scala
    resources
             application.conf

and that contains

path{
  http{
      url = "http://testingurl"

  }
}

I am reading using below code

import com.typesafe.config.Config;

val url = conf.getString("path.http.url")

I am reading this static information which is provided durng build time.

Now I want to read these in runtime, user should be able to modify configs even after jar is built.

my requirement is to modify url event after jar is build, I dont want to pass as a arguments to the main function because I have so many such values which needs to modified after jar built

Solution

See: Lightbend Config Readme

Use at runtime: -Dconfig.file=<relative or absolute path>

See:

For applications using application.{conf,json,properties}, 
system properties can be used to force a different config source 
    (e.g. from command line -Dconfig.file=path/to/config-file):

    config.resource specifies a resource name - not a basename, i.e. application.conf not application
    config.file specifies a filesystem path, again it should include the extension, not be a basename
    config.url specifies a URL

These system properties specify a replacement for application.{conf,json,properties}, not an addition. 
They only affect apps using the default ConfigFactory.load() configuration. 
In the replacement config file, you can use include "application" to include the original default config file; 
after the include statement you could go on to override certain settings.

Answered By - Andrzej Jozwik
Answer Checked By - Marilyn (JavaFixing Volunteer)