not working with uvloop

[chapagainmanoj]

I tried your solution with threading but it throws me

asyncpg.exceptions._base.InterfaceError: cannot perform operation: another operation is in progress

nest_asyncio doesn't work either even if it works for asyncio loop but with some tradeoffs according to this discussion . So better solution could be rewriting some part of casbin itself to support async, and it seem pretty straight forward and it worked for me with these changes

[hsluoyz]

@sakti @isasetiawan

@basakest @techoner

[isasetiawan]

Hi thank you for the contribution.

I think based on @chapagainmanoj changes every @to_sync() won't be necessary and we could plug in this adapter to asynccasbin, am i right?

[chapagainmanoj]

Yes,
I have changed each io functions to async. I haven't tested all the features but only what I needed.
So you can do something like

pip install asynccasbin

adapter = DatabasesAdapter(db_conn)
...
e = casbin.Enforcer(casbin_conf_path, None) # adapter is set to None because it can't awaited in __init__
e.set_adapter(adapter)
if not e.is_filtered():
    await e.load_policy()

[hsluoyz]

@chapagainmanoj plz close this issue if resolved. Also welcome to add an asynccasbin pointer to pycasbin's README