Phoenix Query Server - proper POST body format

[Jared Katz]

I'm guessing this will be a pretty easy question for someone to answer...

I've had success making POST requests to the Query Server by putting the 
payload in the request header, like so:
                Key: "request"
                Value: "{"request": "prepareAndExecute", "sql": "SELECT* FROM 
table", "maxRowCount": -1, "connectionId": "12345"}"

How do I properly format the payload for the request body? I tried using the 
same key and value in the form-data for the request body, but I'm getting a 500 
error with the following message:

"Problem accessing /. Reason: java.lang.NullPointerException"

Thanks,
Jared