Can we add async api?

[wy96f]

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1. Is this request related to a challenge you're experiencing? Tell me about your story.

The workflow api may last a few minutes. If there are many concurrent requests, this will lead to a surge in client threads and network connections, affecting the stability of the system.

2. Additional context or comments

Can we add async api?
For example, asyn api returns taskId directly and Client can query task by taskId.

3. Can you help us with this feature?

• I am interested in contributing to this feature.