Cause
The validity of an API key ranges from 1 to 730 days.
What to do
Give a validity within the range.
application/problem+json
{
"type": "https://masnet.com/developers/errors/invalid_expiration",
"title": "Invalid expiration",
"status": 400,
"detail": "...",
"code": "invalid_expiration",
"correlation_id": "..."
}