Trigger form can be called via URL with fields pre-populated.

Apache Airflow version

3.0.5

If "Other Airflow 2 version" selected, which one?

No response

What happened?

In Airflow 2.7++ it was possible to directly call the trigger form UI via a URL and with URL parameters also to pre-populate fields.

This feature is missing in Airflow 3 UI - and would be great to add it back again.

What you think should happen instead?

If you call http://localhost:28080/dags/example_params_ui_tutorial you can open the Dag directly.

Target would be to be able to call http://localhost:28080/dags/example_params_ui_tutorial/trigger (or similar) to directly open the trigger form when page is opened. If parameters in for key=value are passed, these are pre-filling the form data.

With this feature restored the documentation cleanup from https://github.com/apache/airflow/pull/54799 could be reversed as well

How to reproduce

Operating System

Versions of Apache Airflow Providers

No response

Deployment

Official Apache Airflow Helm Chart

Deployment details

No response

Anything else?

No response

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct