Xamarin 表单 - Instagram 登录:收到无效的 redirect_uri 错误，如何解决? [英] Xamarin form - Instagram login: getting Invalid redirect_uri error, how to fix it?

问题描述

我已经使用 Xamarin.Auth 集成了 Instagram 登录，我提到了:

解决方案

我终于让它工作了，分享它，因为它可能对寻找解决方案的人有所帮助！

---

var authenticationator = new OAuth2Authenticator(//ID &您在 Facebook 开发者控制台上创建的应用程序的应用程序秘密 Instagram 基本显示clientId:Keys.InstagramAppId，clientSecret:Keys.InstagramAppSecret，//不再支持基本范围，这将修复无效范围错误:范围:user_profile，user_media"，authorizeUrl: new Uri("https://api.instagram.com/oauth/authorize/?client_id=" + Keys.InstagramAppId + "&redirect_uri=https://business.instagram.com/abc&response_type=令牌"),accessTokenUrl: new Uri("https://api.instagram.com/oauth/access_token/"),//确保你的重定向 Url 需要在开发者控制台中注册并且必须是有效的redirectUrl:新的 Uri("https://business.instagram.com/abc")){允许取消 = 真，ShowErrors = 假，ClearCookiesBeforeLogin = true,IsLoadableRedirectUri = false};AuthenticationState.Authenticator = 验证器；authenticationator.Error += (sender, eventArgs) =>{Debug.WriteLine($"Error - {eventArgs.Message}");};authenticationator.Completed += (sender, eventArgs) =>{如果(eventArgs.IsAuthenticated){var userid = eventArgs.Account.Properties[user_id"];var access_token = eventArgs.Account.Properties[access_token"];}};var Presenter = new Xamarin.Auth.Presenters.OAuthLoginPresenter();演示者.登录(身份验证器)；

---

获取用户信息:

使用:

请求详细信息

https://graph.instagram.com/me?fields=id,username&access_token

示例响应:

{id":17841405793187218"，用户名":jayposiris"}

注意:我没有办法获取用户的 profile_picture，所以如果有人知道该解决方案，请告诉我.

I have integrate Instagram login using Xamarin.Auth, I have referred: Instagram basic display api - Getting Started and in that first I was getting:

{"error_type": "OAuthException", "code": 400, "error_message": "Invalid scope field(s): basic"}

Then I have got this post: C# Instagram - Invalid Scope

So I have updated everything and I have created New App in developers.facebook.com console under Instagram Basic Display product as mentioned in Instagram Getting Started document.

Then in code I have used that new App's App ID and also changed redirect url, also added Instagram Test users and they have accept invitations too, but now I am getting

{"error_type": "OAuthException", "code": 400, "error_message": "Invalid redirect_uri"}

---

Auth code:

var authenticator = new OAuth2Authenticator(
    clientId: Keys.InstagramClientId,  
    scope: "basic",  
    authorizeUrl: new Uri("https://api.instagram.com/oauth/authorize/?client_id=" + Keys.InstagramClientId + "&redirect_uri=https://localhost:3000/callback&response_type=token"),
    redirectUrl: new Uri("https://localhost:3000/callback"))
{
    AllowCancel = true,
    ShowErrors = false,
    ClearCookiesBeforeLogin = true
};

AuthenticationState.Authenticator = authenticator;

authenticator.Error += (sender, eventArgs) =>
{
    activity.Finish();
};

authenticator.Completed += (sender, eventArgs) =>
{
    if (eventArgs.IsAuthenticated)
    {
        App.AccountType = "Instagram";
        App.SaveAccount(eventArgs.Account, view.IsFromReauthentication);
    }
};

var presenter = new Xamarin.Auth.Presenters.OAuthLoginPresenter();
presenter.Login(authenticator);

---

Output:

解决方案

Finally I have make it work, sharing this as it might be help for someone looking for the solution!

---

var authenticator = new OAuth2Authenticator(

// Id & App Secret of App you have created on FB developer console in Instagram Basic Display
clientId: Keys.InstagramAppId,
clientSecret: Keys.InstagramAppSecret,

// Basic scope is not supported anymore, this will fix Invalid scope error:
scope: "user_profile, user_media",

authorizeUrl: new Uri("https://api.instagram.com/oauth/authorize/?client_id=" + Keys.InstagramAppId + "&redirect_uri=https://business.instagram.com/abc&response_type=token"),

accessTokenUrl: new Uri("https://api.instagram.com/oauth/access_token/"),

// Make sure that your redirect Url needs to register in developer console and it must be valid one
redirectUrl: new Uri("https://business.instagram.com/abc"))
{
    AllowCancel = true,
    ShowErrors = false,
    ClearCookiesBeforeLogin = true,
    IsLoadableRedirectUri = false
};

AuthenticationState.Authenticator = authenticator;

authenticator.Error += (sender, eventArgs) =>
{
    Debug.WriteLine($"Error - {eventArgs.Message}");
};

authenticator.Completed += (sender, eventArgs) =>
{
    if (eventArgs.IsAuthenticated)
    {
        var userid = eventArgs.Account.Properties["user_id"];
        var access_token = eventArgs.Account.Properties["access_token"];
    }
};

var presenter = new Xamarin.Auth.Presenters.OAuthLoginPresenter();
presenter.Login(authenticator);

---

To get user information:

Request details using :

https://graph.instagram.com/me?fields=id,username&access_token

Sample Response :

{
  "id": "17841405793187218",
  "username": "jayposiris"
}

Note: I have not got the way to get user's profile_picture, so if anyone know that solution please let me know.

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