Go Requires Chilkat v10.1.2+

SharePoint Rest API using OAuth

See more OAuth2 Examples

Demonstrates how to get an OAuth2 access token for the SharePoint REST API. Go

    success := false

    //  To further clarify, see OAuth 2.0 Authorization Flow

    oauth2 := chilkat.NewOAuth2()

    //  The ListenPort should match the port in your localhost Reply URL of your Azure AD app.
    //  Your Reply URL must be exactly "http://localhost:LISTEN_PORT/"
    //     * Do not use "https"
    //     * Make sure the ending "/" is included.
    //     * You may choose any port number that doesn't collide with anything else.
    oauth2.SetListenPort(3017)

    oauth2.SetAuthorizationEndpoint("https://login.microsoftonline.com/TENANT_ID/oauth2/authorize")
    oauth2.SetTokenEndpoint("https://login.windows.net/TENANT_ID/oauth2/token?api-version=1.0")

    //  Replace these with actual values.
    //  Use the application ID
    oauth2.SetClientId("CLIENT_ID")
    //  Use the password
    oauth2.SetClientSecret("CLIENT_SECRET")

    oauth2.SetCodeChallenge(false)

    oauth2.SetScope("openid")
    oauth2.SetResource("https://graph.microsoft.com/")

    oauth2.SetIncludeNonce(true)
    oauth2.SetResponseMode("form_post")
    oauth2.SetResponseType("id_token+code")

    //  Begin the OAuth2 Authorization code flow.  This returns a URL that should be loaded in a browser.
    url := oauth2.StartAuth()
    if oauth2.LastMethodSuccess() == false {
        fmt.Println(oauth2.LastErrorText())
        oauth2.DisposeOAuth2()
        return
    }

    fmt.Println("url = ", *url)

    //  Launch the default browser on the system and navigate to the url.
    //  The LaunchBrowser method was added in Chilkat v10.1.2.
    success = oauth2.LaunchBrowser(*url)
    if success == false {
        fmt.Println(oauth2.LastErrorText())
        oauth2.DisposeOAuth2()
        return
    }

    //  Wait for the user to approve or deny authorization in the browser.
    numMsWaited := 0
    for (numMsWaited < 90000) && (oauth2.AuthFlowState() < 3) {
        oauth2.SleepMs(100)
        numMsWaited = numMsWaited + 100
    }

    //  If the browser does not respond within the specified time, AuthFlowState will be:
    //  
    //  1: Waiting for Redirect – The OAuth2 background thread is waiting for the browser's redirect request.
    //  2: Waiting for Final Response – The thread is awaiting the final access token response.
    //  In either case, cancel the background task initiated by StartAuth.

    if oauth2.AuthFlowState() < 3 {
        oauth2.Cancel()
        fmt.Println("No response from the browser!")
        oauth2.DisposeOAuth2()
        return
    }

    //  Check AuthFlowState to determine if authorization was granted, denied, or failed:
    //  
    //  3: Success – OAuth2 flow completed, the background thread exited, and the successful response is in AccessTokenResponse.
    //  4: Access Denied – OAuth2 flow completed, the background thread exited, and the error response is in AccessTokenResponse.
    //  5: Failure – OAuth2 flow failed before completion, the background thread exited, and error details are in FailureInfo.

    if oauth2.AuthFlowState() == 5 {
        fmt.Println("OAuth2 failed to complete.")
        fmt.Println(oauth2.FailureInfo())
        oauth2.DisposeOAuth2()
        return
    }

    if oauth2.AuthFlowState() == 4 {
        fmt.Println("OAuth2 authorization was denied.")
        fmt.Println(oauth2.AccessTokenResponse())
        oauth2.DisposeOAuth2()
        return
    }

    if oauth2.AuthFlowState() != 3 {
        fmt.Println("Unexpected AuthFlowState:", oauth2.AuthFlowState())
        oauth2.DisposeOAuth2()
        return
    }

    fmt.Println("OAuth2 authorization granted!")
    fmt.Println("Access Token = ", oauth2.AccessToken())

    oauth2.DisposeOAuth2()