Apologies if this is an easy question. I'm new to the eBay API and am trying to create a function for my PHP website which shows active ebay listings for whatever product page the script is loaded on.
I believe I need to use the browse API with search call, which seems to work well. The problem as far as I can tell is that the oAuth token required to make the call expires, needing to be re-generated.
How can I get a token that just works continuously, without needing to log in frequently to get a new token?