Get user profile photo for all services using external authentication in asp net

Introduction

ASP.NET is a popular programming used for building web applications. One common requirement in web applications is to retrieve the user profile photo for all services using external authentication. In this article, we will explore how to achieve this using ASP.NET.

Step 1: Configure External Authentication

we can retrieve the user profile photo, we need to configure external authentication in our ASP.NET application. This can be done by adding the necessary authentication providers in the application's startup code. Here's an example:


public void ConfigureServices(IServiceCollection services)
{
    // Add external authentication providers
    services.()
        .AddGoogle(options =>
        {
            options.ClientId = "YOUR_GOOGLE_CLIENT_ID";
            options.ClientSecret = "YOUR_GOOGLE_CLIENT_SECRET";
        })
        .AddFacebook(options =>
        {
            options.AppId = "YOUR_FACEBOOK_APP_ID";
            options.AppSecret = "YOUR_FACEBOOK_APP_SECRET";
        });
}

Step 2: Retrieve User Profile Photo

Once the external authentication providers are , we can retrieve the user profile photo using the user's access token. The access token is obtained during the authentication process. Here's an example of how to retrieve the user profile photo for Google and :


public async Task GetUserProfilePhoto(string accessToken, string provider)
{
    string userProfilePhotoUrl = string.Empty;

    if (provider == "Google")
    {
        // Retrieve user profile photo from Google
        var httpClient = new HttpClient();
        httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", accessToken);
        var response = await httpClient.GetAsync("https://www.googleapis.com/oauth2/v3/userinfo");
        if (response.IsSuccessStatusCode)
        {
            var content = await response.Content.ReadAsStringAsync();
            var json = JObject.Parse(content);
            userProfilePhotoUrl = json.Value("picture");
        }
    }
    else if (provider == "Facebook")
    {
        // Retrieve user profile photo from Facebook
        var httpClient = new HttpClient();
        var response = await httpClient.GetAsync($"https://graph.facebook.com/v12.0/me/picture?access_token={accessToken}&redirect=false");
        if (response.IsSuccessStatusCode)
        {
            var content = await response.Content.ReadAsStringAsync();
            var json = JObject.Parse(content);
            userProfilePhotoUrl = json["data"]["url"].ToString();
        }
    }

    return userProfilePhotoUrl;
}

Step 3:

Now that we have the to retrieve the user profile photo, we can use it in our ASP.NET application. Here's an example of how to use the method:


public async Task UserProfile()
{
    var accessToken = await .GetTokenAsync("access_token");
    var  = await HttpContext.GetTokenAsync("authentication_provider");

    var userProfilePhotoUrl = await GetUserProfilePhoto(accessToken, provider);

    // Display the user profile photo in the view
    ViewBag.UserProfilePhotoUrl = userProfilePhotoUrl;

     View();
}

Conclusion

In this article, we have explored how to retrieve the user profile photo for all services using external authentication in ASP.NET. By configuring the external authentication providers and implementing the necessary code to retrieve the user profile photo, we can enhance the user experience in our web applications.

Rate this post

Leave a Reply

Your email address will not be published. Required fields are marked *

Table of Contents