C# - Making sync function to async

I think that you can also do this:

public async Task<string> GetDocs()
{
   return await Task.Run(() => JsonConvert.SerializeObject(CreateDocumentQuery().ToList()));
}

(By the way, if you consider the new System.Text.Json.JsonSerializer class, available in modern .NET, you will find a series of async functions, such as SerializeAsync).

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Also see if the statement will accept a ToListAsync().

Hi @sravankumar-3852 ，

Check the relevant document, you can know:

If the method that the async keyword modifies doesn't contain an await expression or statement, the method executes synchronously. A compiler warning alerts you to any async methods that don't contain await statements, because that situation might indicate an error.

So the method you mentioned (new code) will have the same effect as the old method and get a warning. Therefore I do not recommend that you define the method this way, it would be better to follow the documentation.

For more about asynchronous programming, you can refer to this document: Asynchronous programming with async and await

Best regards,
Xudong Peng

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Hello,

If you want to write this correctly you should mark the method async, here is a base framework. The main reason for using async is to keep things responsive, otherwise stick with synchronous code.

Requires System.Text.Json reference as this is not Newtonsoft library.

public class Demo
{
    public static async Task<string> WorkTask(object obj)
    {
        string json = string.Empty;
        await using var stream = new MemoryStream();
        await JsonSerializer.SerializeAsync(stream, obj, obj.GetType());
        stream.Position = 0;
        using var reader = new StreamReader(stream);
        return await reader.ReadToEndAsync();
    }
}