Multiple Accounts, Keyboard Shortcuts, and Remote Signout.The Mobile App, Composing Mail, and Conversations.Tags: ASP.NET, C#, Email component, Gmail, IMAP, OAuth 2.0, VB. TokenResponse refreshed = await credential.RefreshTokenAsync("", token.RefreshToken, CancellationToken.None) ĭim refreshed As TokenResponse = Await credential.RefreshTokenAsync("", token.RefreshToken, CancellationToken.None) The process of refreshing access token is simple: This object contains both: refresh token and access token, along with its expiration time. We recommend storing entire TokenResponse object received from GoogleAuthorizationCodeFlow.ExchangeCodeForTokenAsync method call. Your refresh token will be sent only once – don’t loose it! This means that for long-lived applications you need to refresh the access token. The main reason behind this is security and prevention of replay attacks. IMail email = new MailBuilder().CreateFromEml(eml) ĭim uids As List(Of Long) = imap.Search(Flag.Unseen)ĭim email As IMail = New MailBuilder().CreateFromEml(eml)Īn access token is usually short lived and valid for a maximum of one hour. GoogleApi api = new GoogleApi(accessToken) Access IMAP/SMTP serverįinally we’ll ask Google for user’s email and use LoginOAUTH2 method to access Gmail’s IMAP server: A refresh token can be used to request a new access token once the previous expired. TokenResponse token = await credential.ExchangeCodeForTokenAsync("", authCode, redirectUri, CancellationToken.None) ĭim token As TokenResponse = Await credential.ExchangeCodeForTokenAsync("", authCode, redirectUri, CancellationToken.None)ĭim accessToken As String = token.AccessTokenĪn access token is usually valid for a maximum of one hour, and allows you to access the user’s data. Its purpose is to get a refresh-token and an access-token: Public Function Index(code As String) As ActionResultįollowing is this callback code. Public class OAauth2CallbackController : Controller code=4/5Y7M4cARD9hrt0nuKnQa0YgtYMasdbwprRtIIjk4Fus#
#GMAIL CLIENT ID CODE#
Return New RedirectResult(url.Build().ToString())Īt this point user is redirected to Google to authorize the access:Īfter this step user is redirected back to your website (), with code request parameter:
Return new RedirectResult(url.Build().ToString()) Scopes = new _ĪuthorizationCodeRequestUrl url = credential.CreateAuthorizationCodeRequest(redirectUri) ĭim url As AuthorizationCodeRequestUrl = credential.CreateAuthorizationCodeRequest(redirectUri) Var credential = new GoogleAuthorizationCodeFlow(new GoogleAuthorizationCodeFlow.Initializer String clientSecret = "IxBs0g5sdaSDUz4Ea7Ix-Ua" In our case it is user’s email address and IMAP/SMTP access: Scope basically specifies what services we want to have access to. Now we can define clientID, clientSecret, redirect url and scope variables, as well as Google OAuth 2.0 server addresses. After you’ve registered, go to the API Access tab and copy the “ Client ID” and “ Client secret” values and specify “ Redirect URI“, which you’ll need later.Īfter you’ve registered, copy the “ Client ID” and “ Client secret” values, which you’ll need later: Imports īefore you can use OAuth 2.0, you must register your application using the Google Developers Console. You can also use OAuth 2.0 for installed applications. NET IMAP component in web application scenario (ASP.NET/ASP.NET MVC). This article describes using OAuth 2.0 to access Gmail IMAP and SMTP servers using. OAuth is an open protocol to allow secure API authorization in a simple and standard method from desktop and web applications.
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