Symfony version(s) affected

6.4, 7.1

Description

In API Platform, we need to add formats per-request. Indeed, each HTTP operation can be configured with specific mime-types.

To do so, we use Request::setFormat:

We recently stumbled on an issue in worker mode. Indeed as $formats is static, its values are sometimes the same as a previous request and we need to merge new formats (api-platform/core#6833) to bypass this issue.

Possible Solution

With @dunglas we were thinking of a few solutions:

• either allow a way to restore Request::$formats in a ResetInterface to null (although this solution makes the static not so useful)
• set a local variable (Request::$currentFormat) that would fallback on the static value if not defined. This would allow to set formats per-request.

Note: to reproduce we can use api-platform/core#6831 or the test at api-platform/core#6833