API Endpoints - Read-only - Variable

[mik-laj]

Description

Hello

We need to create several endpoints that perform basic read-only operations on Variable . We need the following endpoints:

• GET /variables
• GET /variables/{variable_key}

Detailed information is available in the issue:
#8118

Use case / motivation
N/A

Related Issues
N/A

[mik-laj]

@houqp Do you want to work on it?
We are ready. You can start working from this file
https://github.com/apache/airflow/blob/master/airflow/api_connexion/endpoints/variable_endpoint.py

For now, we focus only on read-only operations, but others will also be implemented as the next step.

[houqp]

@mik-laj yes, I can take a stab at it this week. do you mind if I implement write endpoints as well or do you prefer me to only fill out the read endpoints?

[mik-laj]

A single PR can close multiple tickets. I divided the variable endpoints because I want to involve many new people in these tasks. When the ticket is small it is easier to finish it.
Here is a ticket about CRUD operation for Variable:
#9115
Does this sound good to you?

[houqp]

@mik-laj looks good to me!