You can simply use the pars keyword in the webclientDAT.request method. The value should be a dictionary filled with the non-url encoded parameter values. In your case that would be something like:
I tried, but when I request, the frame is lowered, and the screen stops.
It doesn’t work, what should I do?
And what do I do if I want to put a car from Dat, not a car in the parameter?
Attached is the file.
your script with the .request() call to the webClient DAT should not be in the webclient’s callbacks DAT but in a seperate script. The callbacks DAT is executed everytime the Web Client DAT connects, disconnects, or receives a response. So you are ending up in a endless loop of requesting a url, connecting, requesting, connecting, requesting…
You would either use a Text DAT to run the script as shown above by @JoshKery but using @eric.b pars argument in the .request method, or use a Table DAT with your arguments as the second input to the Web Client DAT.