Set up

Add an application

Go to /admin/linked_services/app/add/ and add the first application, it will generate automatically the keys, go to its pair and add the second application using the same key, key type and basic auth fields.

Which algorithm you should use

The correct algorithm depends on your requirements, just avoid to use any signature algorithm, because it's significantly slower.

Add first_party_webhooks to your scheduler

python manage.py first_party_webhooks routes all the incoming webhooks what was saved previously.