Error 400 with /getappfileurl links

[juanjo_cacho]

I have several applications that use links to files archived on Google Drive with https://www.appsheet.com/template/getappfileurl?appName=[APPNAME]&fileName=[FILEPATH]
I save link in a table columns

It has worked correctly until today when the link returns an error 400 bad request without having made any changes.

[Aleksi · Accepted solution]

Please check this post that describes the reason and how to fix it.

Call to Action for Apps Constructing URLs to GetTableFileUrl Announcements

We recently made a security enhancement wherein image and file type columns have signed URLs generated for them. This enhancement prevents an app user from changing the table name or file name parameters in order to access app files that they should not. In the near future, we are going to start requiring calls to the gettablefileurl and getappfileurl endpoints to have valid signatures. What does this mean for you? If you have an app where you are manually constructing a link to a gettablefileu…

[juanjo_cacho]

Thank you Aleksi.