Modify chrome extension rebuilding from source

Hello guys we are looking to edit the chrome extension of [login to view URL] what they provide is simple chrome extension which help user to send msg via API to whatsapp. I have decompiled their extension and all opensource code available with me. you just need to modify the source code so we dont use their service and send msg directly from our service. please check [login to view URL] to understand what I'm talking about all I want to remove their service and build our extension from their source. please bid only if you are ready to work instantly I need this urgently. will provide the ext source code upon awarded candidate asap.