Hi Lyndon,
Thank you for the feedback! I’m sorry to read that your clients are often experiencing problems uploading images.
The 502 response most likely means that compressing the image took longer than your PHP settings allow PHP scripts to execute. This could happen for various reasons, such as large size images, a very low max execution time setting in PHP, or simply bad performance of the API. We haven’t received many similar reports in the last month, so I’m quite surprised that you’re getting it for practically every upload.
Are you constantly getting the same error for the same image, or does it work on a second try? If you keep getting the same error for the same image, then it would be very helpful if you could share such images with us so that we can give it a try as well. In that case it would also be helpful to know which image sizes you have configured to be compressed.
It would also be helpful to take a look at your max_execution_time setting in PHP. An easy way to do so is to create a new PHP file with <? phpinfo(); ?> in it, and access it in your browser. Or if you’re more tech-savvy, you could get it from the PHP configuration file.
In case you also have SSH access to the host where you’re experiencing problems on, you could try to do some cURL requests using the examples on https://tinypng.com/developers/reference to see if it’s working that way. I’m also interested in how long it takes to compress a single image for you.
In case you would like to share any specific images with us you can also contact us at [email protected]
I’m positive that we can find out what’s causing the many errors that you’re getting.
