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How can exceptions be caught in code using await?

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Answer from AI

Exceptions in code using await are caught by standard try...catch blocks.

Example:

public async Task GetDataAsync()
{
    try
    {
        // Call an asynchronous operation that may throw an exception
        var result = await SomeService.FetchDataFromApiAsync();
        // Handle successful result
    }
    catch (UnauthorizedAccessException ex)
    {
        // Handle specific exception (e.g., lack of permissions)
        Console.WriteLine($"Authorization error: {ex.Message}");
    }
    catch (HttpRequestException ex)
    {
        // Handle HTTP request exception (e.g., network issues)
        Console.WriteLine($"HTTP request error: {ex.Message}");
    }
    catch (Exception ex)
    {
        // Handle any other unhandled exceptions
        Console.WriteLine($"An unexpected error occurred: {ex.Message}");
        // Additional actions: logging, user notification, etc.
    }
}

If the asynchronous operation that await points to throws an exception, the execution of the current thread is interrupted, and control is transferred to the corresponding catch block in the same asynchronous function (or the caller). Without await, an exception from an asynchronous operation will not be caught by the calling function until the task/operation is completed and its result/exception is requested (e.g., via .Result or .Wait(), which is not recommended). await essentially "unwraps" the exception from the task and rethrows it, making catching with try...catch a common way to handle it.