Hi, I'm facing out with a similar issue.
When I perform a POST request to "https://api.windy.com/api/point-forecast/v2" through POSTMAN
with this payload
{
"lat": 42,
"lon": 12,
"model": "gfs",
"parameters": ["wind", "dewpoint", "rh", "pressure"],
"key": "MyApiKey"
}
I get a correct response as can be seen in the pic below

but if i try to perform the same POST request through a JAVA application of mine I get the mentioned HTTP 502 error message

Any help would be appreciated, thanks!