I've been using the Shopping API GetSingleItem endpoint for months now, issue free, until a month ago. Now the endpoint will only return a 200 response with no data. Every now and then I can get data returned but 99% of the time it is just an empty 200 response with no errors or anything. Is anybody else experiencing this same issue?,
Works here. There is no GetSingleItem endpoint. There is a Shopping API endpoint.
https://open.api.ebay.com/shopping If you have a question about the API, you need to post a sample request URL. There are a number of URL issues that could cause your problem.