How do I return a value after I receive a http response?

I have this function that sends an HTTP web request but after I get the response, I need to return a value from the lambda function and not the SendRequest function itself.


void OpenAiSdk::DispatchRequest()
{
   // I need to get the return value from the lambda function
   FChatCompletionCreateResponse response = SendRequest(outputString);
}

void OpenAiSdk::SendRequest(FString outputString)
{
   FHttpModule* http = &FHttpModule::Get();
   TSharedRef<IHttpRequest> r = http->CreateRequest();

   r->OnProcessRequestComplete().BindLambda([&](FHttpRequestPtr req, FHttpResponsePtr res, bool bWasSuccessful)
   {
      FChatCompletionCreateResponse* chatCompletionResponse = new 
FChatCompletionCreateResponse;
		
      if (bWasSuccessful)
      {
         ...
         return chatCompletionResponse;
      }
}