How does error propagation work in C# async methods?

How does error propagation work in C# async methods?

In C#, when an exception occurs in an async method, it is captured and can be propagated to the calling method. This means that the exception can be handled using try-catch blocks in the calling method.

Can you give me an example of this in code?

Sure! Here's a simple example:

public async Task<string> GetDataAsync()
{
    throw new Exception("Data not found");
}

public async Task CallGetDataAsync()
{
    try
    {
        var result = await GetDataAsync();
    }
    catch (Exception ex)
    {
        Console.WriteLine(ex.Message);
    }
}

What happens if I don't handle the exception?

If you don't handle the exception, it will propagate up the call stack and can cause your application to crash or terminate unexpectedly.

Are there best practices for error handling in async methods?

Yes, some best practices include using try-catch blocks, logging exceptions, and ensuring that your async methods return a Task that can be awaited.