(DataFlex) OneDrive with OAuth2 Client Credentials

See more OneDrive Examples

Demonstrates how to authenticate with Microsoft OneDrive using OAuth2 client credentials. This example uses a new feature available starting in Chilkat v9.5.0.97, which is to provide the client ID, client secret, and tenant ID to Chilkat, and internally Chilkat will fetch OAuth2 access token via client credentials as necessary. Therefore, it is no longer necessary for the application to explicitly fetch the OAuth2 access token beforehand.

Note: This example requires Chilkat v9.5.0.97 or greater.

For more information, see https://learn.microsoft.com/en-us/onedrive/developer/rest-api/api/drive_list?view=odsp-graph-online

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

Use ChilkatAx-win32.pkg

Procedure Test
    Handle hoJson
    Boolean iSuccess
    Handle hoHttp
    String sResp
    Handle hoJsonResp
    String sTemp1
    Integer iTemp1
    Boolean bTemp1

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

    // --------------------------------------------------------------------------------------------------------
    // You'll need to have registered an app in Azure beforehand.
    // See How to Create an Azure App Registration for OAuth 2.0 Client Credentials
    // 
    // Note: For OneDrive, your registered app needs one or more of these permissions:  Files.Read.All, Files.ReadWrite.All, Sites.Read.All, Sites.ReadWrite.All
    // --------------------------------------------------------------------------------------------------------

    Get Create (RefClass(cComChilkatJsonObject)) To hoJson
    If (Not(IsComObjectCreated(hoJson))) Begin
        Send CreateComObject of hoJson
    End

    // Use your App's actual client ID here:
    Get ComUpdateString Of hoJson "client_id" "2871da2c-8176-4b7f-869b-2311aa82e743" To iSuccess

    // Use your App's actual client secret here:
    Get ComUpdateString Of hoJson "client_secret" "2hu9Q~r5QuryUcEkNbg1btLtnfU1VUXzhSCG6brH" To iSuccess

    // Use this specific scope.
    Get ComUpdateString Of hoJson "scope" "https://graph.microsoft.com/.default" To iSuccess

    // Replace the tenant ID part of the URL with your tenant ID.
    Get ComUpdateString Of hoJson "token_endpoint" "https://login.microsoftonline.com/114d7ed6-71bf-4dbe-a866-748364121bf2/oauth2/v2.0/token" To iSuccess

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

    Get ComEmit Of hoJson To sTemp1
    Set ComAuthToken Of hoHttp To sTemp1

    // List drives.
    // You can specify a {siteId}, {groupId}, or {userId} in the URL
    // to access document libraries for a group, a site, or a specific user.
    // Use your specific Id instead of what we're using here:
    Get ComSetUrlVar Of hoHttp "userId" "4fe732c3-322e-4a6b-b729-2fd1eb5c6104" To iSuccess
    Get ComQuickGetStr Of hoHttp "https://graph.microsoft.com/v1.0/users/{$userId}/drives" To sResp
    Get ComLastMethodSuccess Of hoHttp To bTemp1
    If (bTemp1 <> True) Begin
        Get ComLastErrorText Of hoHttp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // The response should be JSON.
    Get Create (RefClass(cComChilkatJsonObject)) To hoJsonResp
    If (Not(IsComObjectCreated(hoJsonResp))) Begin
        Send CreateComObject of hoJsonResp
    End
    Set ComEmitCompact Of hoJsonResp To False
    Get ComLoad Of hoJsonResp sResp To iSuccess

    // A successful response should return a status code of 200.
    Get ComLastStatus Of hoHttp To iTemp1
    If (iTemp1 <> 200) Begin
        Get ComEmit Of hoJsonResp To sTemp1
        Showln sTemp1
        Get ComLastStatus Of hoHttp To iTemp1
        Showln "Response status = " iTemp1
        Procedure_Return
    End

    Get ComEmit Of hoJsonResp To sTemp1
    Showln sTemp1


End_Procedure