What are some examples of using async APIs in C#?

What are some examples of using async APIs in C#?

In C#, async APIs allow for non-blocking operations. For example, you can use HttpClient to fetch data asynchronously.

Can you show me a code snippet for that?

Sure! Here's a simple example:

using System;
using System.Net.Http;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        using HttpClient client = new HttpClient();
        var response = await client.GetStringAsync("https://api.example.com/data");
        Console.WriteLine(response);
    }
}

What happens if the API call fails?

You can handle failures using try-catch blocks. Here's an updated example:

try
{
    var response = await client.GetStringAsync("https://api.example.com/data");
    Console.WriteLine(response);
}
catch (HttpRequestException e)
{
    Console.WriteLine("Request error: " + e.Message);
}

Are there any best practices for using async APIs?

Yes! Always use async and await keywords properly, avoid blocking calls, and handle exceptions gracefully.