c# - Make an Http request through a Lambda Func -


i'm trying make httpclient requests through helper function manage circuitbreaker polly policy.

i'm trying call var response = clientfactory.makerequest(() => client.getasync("/"));

inside of client factory have circuit breaker policy defined , i'm trying execute lambda above using policy so

public async task<httpresponsemessage> makerequest(func<httpresponsemessage> request)   {      var response = policy.executeasync(() => request.invoke());      return response;   }

i'm new lambda's whole , passing function gets more confusing. how configure function , first line of code execute client , return httpresponsemessage? don't think task<httpresponsemessage> or func<httpresponsemessage> correct

i suggest, read information on async/await (not lambdas) key understanding how achieve it.

https://docs.microsoft.com/en-us/dotnet/csharp/async

you using asynchronous programming must decide, whether want have asynchronous method makerequest or want synchronous one. if want synchronous (but - no need using executeasync. suppose, there execute() alternative) simple write :

public httpresponsemessage makerequest(func<httpresponsemessage> request)   {      var response = policy.executeasync(() => request.invoke());      return await response;   }

if want asynchronous :

public async task<httpresponsemessage> makerequest(func<httpresponsemessage> request) {     var response = policy.executeasync(() => request.invoke());     return response; }  public void mymethodusingasync() {     var responsepromises = makerequest(() => {...});     ///do job wich done before response retrieved (not waiting it); , if need - use await     var responsereceived = await responsepromises; }

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