MaximeK questions

MaximeK answers

• How to "create or update" using F object?
• Add a field error in Django Rest Framework validate method?
• Is there a twig alternative for DateTime::createFromFormat(...)?
• How to test file upload in Django rest framework using PUT?
• Why are my concurrent AJAX requests to PHP Scripts/WP REST API so slow?
• Celery-Beat: ACCESS_REFUSED - Login was refused using authentication mechanism AMQPLAIN