Broken json_client

[sw1010]

Apache Airflow version: 2.1.2

Apache Airflow Provider versions (please include all providers that are relevant to your bug):
apache-airflow-providers-ftp==2.0.0
apache-airflow-providers-imap==2.0.0
apache-airflow-providers-sqlite==2.0.0

Environment:

• OS (e.g. from /etc/os-release): Ubuntu
• Python: python 3.8
• httpx: httpx==0.6.8, httpx==0.18.2

What happened:

Traceback (most recent call last):
  File "./bug.py", line 6, in <module>
    response = airflow_client.trigger_dag(
  File "/home/user/my_project/venv38/lib/python3.8/site-packages/airflow/api/client/json_client.py", line 54, in trigger_dag
    data = self._request(
  File "/home/user/my_project/venv38/lib/python3.8/site-packages/airflow/api/client/json_client.py", line 38, in _request
    if not resp.ok:
AttributeError: 'Response' object has no attribute 'ok'

Json Client depends on httpx, which doesn't provide the attribute 'ok' and according to their spec (https://www.python-httpx.org/compatibility/) they are not going to do that. In the consequence handling the response crashes.

What you expected to happen:

The expected outcome is to handle the response smoothly.

How to reproduce it:

#!/usr/bin/env python3

from airflow.api.client import json_client

airflow_client = json_client.Client("http://rnd.airflow.mydomain.com", None)
response = airflow_client.trigger_dag("my_dag", execution_date="2021-04-27T00:00:00")

Anything else we need to know:
The problem always occurs.

[boring-cyborg]

Thanks for opening your first issue here! Be sure to follow the issue template!

[uranusjr]

This was probably missed when we migrated from requests to httpx. Would you be able to submit a pull request for this?