c# - Basic Auth in .NET with Filter & Async MongoDB comparison Task.wait() never ends -

i have rest api basic filter. filter checks against db (mongodb) before actual request made, wether user authorized. works first time, afterwards gets stuck at

var filter = builders<user>.filter.eq("email", email); return  _collection.find(filter).firstordefaultasync(); 

which looks user in db based on email. task doesn't finish , neither throw timeout exception .

my question related : c# mongo firstordefaultasync hangs

however fix didn't me. can't keep passing async tasks call hierarchy because @ point filter expects sychronous action based on results. , await doesnt cut either.

any ideas? can't 1st 1 building rest api basic auth , mongodb behind it...

help appreciated:)

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update:

a call results in problems:

//... await fbuserrepo.updateasync(user);  //the method public async task<guid> updateasync(tentity entity) {         entity.lastupdatedtimestamp = datetime.now;         var filter = builders<tentity>.filter.eq("_id", entity.id);         await _collection.replaceoneasync(filter, entity);         return entity.id;     } 

when method called, nothing happens, nothing returned.. stuck later @ .wait() ... haven't changed on configuration , happens both locally in azure cloud. performing queries directly on mongodb no problem, there no currentop() pending. no timeout thrown. application decided not anymore. thread stays still

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update again

the odd part is: can crud sorts of stuff db. when come authenticationfilter trouble. crawled on 100k documents fb , dropped db, updated them, etc. fetching , updating user documents through basicauthfilter giving me trouble. can't explain it... might notice frustration (2am now..)

.result after sync method solve problem.

like given below.

var filter = builders<user>.filter.eq("email", email); return  _collection.find(filter).firstordefaultasync().result; 

however make sure, method you're working on isn't marked "async" async method should not blocking. more details here.