C# async

avoid .Result Or Wait on task as it will block threads and can lead to deadlocks
always wrap your calls in try catch as the async errors are generally swallowed by the framework
public async Task<Customer> Get(int id)
    {
        // you are on a particular thread here
        var customer = await SomeAsyncFunctionThatGetsCustomer(id).ConfigureAwait(false); // doesn't have find the orginal thread it used so is much faster

        // now you are on a different thread!  will that cause problems?
        return customer;
    }
    
    

Task.Run(() => DoWorkAsync()); //can be awaited will create a new thread

Use concurrent collections when working with threads and collections because - for instance instead of queue use concurrentqueue

https://www.codeproject.com/Articles/147248/Concurrent-Collections-with-NET

https://msdn.microsoft.com/en-us/library/dd997373(v=vs.110).aspx

These thread safe collections don't have to be locked