(DataFlex) Microsoft Teams OAuth2 Client Credentials Authentication

See more Microsoft Teams Examples

Demonstrates how to authenticate with OAuth 2.0 using the client credentials grant type.

Note: This example uses the new "Integrated OAuth2 Client Credentials" feature introduced in Chilkat v9.5.0.96.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoHttp
    Variant vJson
OAuthCC    Handle hoJsonOAuthCC
    Variant vJson
    Handle hoJson
    Variant vResp
    Handle hoResp
    String sTemp1
    Integer iTemp1
    Boolean bTemp1

    // This requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    Get Create (RefClass(cComChilkatHttp)) To hoHttp
    If (Not(IsComObjectCreated(hoHttp))) Begin
        Send CreateComObject of hoHttp
    End

    // Provide the information needed for Chilkat to automatically fetch the OAuth2.0 
    // access token as needed.
    // This is the new "Integrated OAuth2 Client Credentials" feature introduced in Chilkat v9.5.0.96.  
    Get Create (RefClass(cComChilkatJsonObject)) To hoJsonOAuthCC
    If (Not(IsComObjectCreated(hoJsonOAuthCC))) Begin
        Send CreateComObject of hoJsonOAuthCC
    End

    // --------------------------------------------------------------------------------------------------------
    // You'll need to have registered an app in Azure beforehand.
    // 
    // Note: Creating a Team requires the following Application permissions:
    // Team.Create, Teamwork.Migrate.All, Group.ReadWrite.All**, Directory.ReadWrite.All**
    // 
    // See How to Create an Azure App Registration for OAuth 2.0 Client Credentials
    // --------------------------------------------------------------------------------------------------------

    // Use the values from your App Registration in Azure.
    Get ComUpdateString Of hoJsonOAuthCC "client_id" "e1cd2318-xxxx-4916-bfd6-xxxxxxxxxxxx" To iSuccess
    Get ComUpdateString Of hoJsonOAuthCC "client_secret" "K.d8Q~RoJxxxxvCj_u_xxxxxxxxxxxxxxxxxxxxx" To iSuccess

    // You'll always use this scope for client credentials, because the allowed actions
    // are determined by the App Permissions defined when you registered the app in Azure.
    Get ComUpdateString Of hoJsonOAuthCC "scope" "https://graph.microsoft.com/.default" To iSuccess

    // The token endpoint includes your tenant ID.  Use your tenant ID (not the tenant ID shown here).
    Get ComUpdateString Of hoJsonOAuthCC "token_endpoint" "https://login.microsoftonline.com/112d7ed6-71bf-4eba-a866-738364321bfc/oauth2/v2.0/token" To iSuccess

    // Provide the OAuth2 information. Chilkat will use this information to automatically fetch the OAuth2 access token as needed,
    Get ComEmit Of hoJsonOAuthCC To sTemp1
    Set ComAuthToken Of hoHttp To sTemp1

    // ------------------------------------------------------------------------------
    // To create a Microsoft Team, we want to send an HTTP request like the following:
    // 
    // Note: The following is the minimal JSON for a request using Applicaton permissions (i.e. the access token retrieved using the client credentials grant).
    // 
    // POST https://graph.microsoft.com/v1.0/teams
    // Content-Type: application/json
    // 
    // {
    //    "template@odata.bind":"https://graph.microsoft.com/v1.0/teamsTemplates('standard')",
    //    "displayName":"My Sample Team",
    //    "description":"My Sample Team�s Description",
    //    "members":[
    //       {
    //          "@odata.type":"#microsoft.graph.aadUserConversationMember",
    //          "roles":[
    //             "owner"
    //          ],
    //          "user@odata.bind":"https://graph.microsoft.com/v1.0/users('0040b377-61d8-43db-94f5-81374122dc7e')"
    //       }
    //    ]
    // }

    Get Create (RefClass(cComChilkatJsonObject)) To hoJson
    If (Not(IsComObjectCreated(hoJson))) Begin
        Send CreateComObject of hoJson
    End
    Get ComUpdateString Of hoJson '"template@odata.bind"' "https://graph.microsoft.com/v1.0/teamsTemplates('standard')" To iSuccess
    Get ComUpdateString Of hoJson "displayName" "My Sample Team" To iSuccess
    Get ComUpdateString Of hoJson "description" "My Sample Team�s Description" To iSuccess
    Get ComUpdateString Of hoJson 'members[0]."@odata.type"' "#microsoft.graph.aadUserConversationMember" To iSuccess
    Get ComUpdateString Of hoJson "members[0].roles[0]" "owner" To iSuccess
    Get ComUpdateString Of hoJson 'members[0]."user@odata.bind"' "https://graph.microsoft.com/v1.0/users('4ee732c3-322e-4a6b-b729-2fd1eb5c6004')" To iSuccess

    Set ComEmitCompact Of hoJson To False
    Get ComEmit Of hoJson To sTemp1
    Showln sTemp1

    Send ComSetRequestHeader To hoHttp "Content-type" "application/json"

    Get pvComObject of hoJson to vJson
    Get ComPostJson3 Of hoHttp "https://graph.microsoft.com/v1.0/teams" "application/json" vJson To vResp
    If (IsComObject(vResp)) Begin
        Get Create (RefClass(cComChilkatHttpResponse)) To hoResp
        Set pvComObject Of hoResp To vResp
    End
    Get ComLastMethodSuccess Of hoHttp To bTemp1
    If (bTemp1 = False) Begin
        Get ComLastErrorText Of hoHttp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // A successful response is indicated by a 202 response status code and an empty response body.
    Get ComStatusCode Of hoResp To iTemp1
    Showln "Response Status Code: " iTemp1
    Showln "Response Body:"
    Get ComBodyStr Of hoResp To sTemp1
    Showln sTemp1

    Get ComStatusCode Of hoResp To iTemp1
    If (iTemp1 >= 400) Begin
        Showln "Response Header:"
        Get ComHeader Of hoResp To sTemp1
        Showln sTemp1
        Showln "Failed."
    End

    Send Destroy of hoResp


End_Procedure