File Download in C# .NET Core

Question

Hi All,

I am developing an application in C# .NET Core and angular. I need to implement a file download functionality in the application where user will download the file from URL in his Downloads folder. I came to know that C# WebClient class has become obsolete and can not be used to achieve the same.

Please advise how can I achieve the same ASAP.

Thanks & Regards,
Pratham Jain

Answer 1

Hi @Pratham Jain ,

Welcome to Q&A.

We don't recommend that you use the WebClient class for new development. Instead, use the System.Net.Http.HttpClient class.

This is the demo code:

// HttpClient is intended to be instantiated once per application, rather than per-use. See Remarks.  
static readonly HttpClient client = new HttpClient();  
  
static async Task Main()  
{  
    // Call asynchronous network methods in a try/catch block to handle exceptions.  
    try	  
    {  
        HttpResponseMessage response = await client.GetAsync("http://www.contoso.com/");  
        response.EnsureSuccessStatusCode();  
        string responseBody = await response.Content.ReadAsStringAsync();  
        // Above three lines can be replaced with new helper method below  
        // string responseBody = await client.GetStringAsync(uri);  
  
        Console.WriteLine(responseBody);  
    }  
    catch(HttpRequestException e)  
    {  
        Console.WriteLine("\nException Caught!");	  
        Console.WriteLine("Message :{0} ",e.Message);  
    }  
}  

Best Regards,
Jiale

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