how do i send a array as json over websocket

hello

I want this text ({"OPCODE" : "01" , "Username" : "test"} ) to send over websocket to the server. i've created a array with `OPCODE` and `Username` variables and set the values. when i use `array.asjson`, The server side receives bunch of unclear string like `[0][0]` that makes no sense. how do i do that?