Make a GET call to this endpoint with query parameter "items" (e.g. /username?items= ) and include a space free, comma delimited string (e.g. one,two,three,four).
Returns all two or more item combinations of the list implied by the comma delimited string parameter e.g. :
{ "items": [ "onetwo", "onethree", "onefour", "twoone", "twothree", "twofour", "threeone", ... "fouronethreetwo", "fourtwoonethree", "fourtwothreeone", "fourthreeonetwo", "fourthreetwoone" ] }
Note that Thunkable will not recognize LOCALHOST as a webserver, so you will need to serve Flask app on Heroku, Google Cloud or similar, or alternatively (and temporarily) using NGROK.
You do not need to set any header parameters when using GET within your Thunkable WebAPI block.