[alexanto]

async ounterpart of #473

[ppicom]

Hi there! I haven't looked at the code, just at the number of LoC and files that changed. Have we considered splitting this PR in smaller ones? I know it's the top of the stack, a lot needs to happen for this one to get merged. But just throwing it out there to start thinking about whether it's possible

[Copilot]

🟡 Changes recommended

Async transport validation rejects valid coroutine-returning methods wrapped by synchronous decorators, causing AsyncUnleashClient construction to fail before any request.

1 open issue

• Accept decorated async transport methods during validation · New

What changed in this PR

Extends public transport customization to AsyncUnleashClient, matching the synchronous client’s support for user-managed sessions and alternative HTTP libraries.

Changes:

• Exposes async transports and adds constructor validation.
• Adds custom aiohttp sessions, headers, and explicit resource ownership.
• Expands tests, documentation, and examples for async transport usage.

File	Description
UnleashClient/​transport.py	Shares transport validation and authorization-header checks.
UnleashClient/​clients/​unleash_client.py	Uses shared transport validation.
UnleashClient/​clients/​async_unleash_client.py	Accepts and validates custom async transports.
UnleashClient/​_async_unleash_api_client.py	Looks up response ETags case-insensitively.
UnleashClient/​_aiohttp_transport.py	Supports user sessions, custom headers, and ownership-aware cleanup.
UnleashClient/​__init__.py	Exports async transport interfaces and implementation.
tests/​unit_tests/​test_aiohttp_transport.py	Tests session ownership, headers, and response handling.
tests/​unit_tests/​clients/​test_async_unleash_client_transport.py	Tests transport integration, validation, and examples.
README.md	Documents async transport configuration and lifecycle.
examples/​httpx_async_transport.py	Demonstrates an httpx-backed async transport.
examples/​fake_async_transport.py	Demonstrates async testing without a server.
CHANGELOG.md	Records public async transport support.

_{Review effort: Balanced}

[alexanto]

Hi there! I haven't looked at the code, just at the number of LoC and files that changed. Have we considered splitting this PR in smaller ones? I know it's the top of the stack, a lot needs to happen for this one to get merged. But just throwing it out there to start thinking about whether it's possible

i rebased it so it appears much smaller and the actual code is change is ~200 lines, the rest is just tests and changelog, so i hope it is not that horrible now