DataFlex

OneDrive -- Download Text File to Memory

See more OneDrive Examples

Downloads a text file (such as XML, JSON, plain-text, HTML, etc.) into a StringBuilder object.

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

DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoJson
    Handle hoHttp
    Variant vSbXml
    Handle hoSbXml
    String sExpectedCharset
    String sUrl
    String sTemp1
    Integer iTemp1
    Boolean bTemp1

    Move False To iSuccess

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

    // This example uses the OAuth client credentials flow.
    // See How to Create an Azure App Registration for OAuth 2.0 Client Credentials

    // Use your client ID, client secret, and tenant ID in the following lines
    Get Create (RefClass(cComChilkatJsonObject)) To hoJson
    If (Not(IsComObjectCreated(hoJson))) Begin
        Send CreateComObject of hoJson
    End
    Get ComUpdateString Of hoJson "client_id" "2871da2c-8176-4b7f-869b-2311aa82e743" To iSuccess
    Get ComUpdateString Of hoJson "client_secret" "2hu9Q~r5QuryUcEkNbg1btLtnfU1VUXzhSCG6brH" To iSuccess
    Get ComUpdateString Of hoJson "scope" "https://graph.microsoft.com/.default" To iSuccess
    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

    // Sends the following GET request:
    // GET https://graph.microsoft.com/v1.0/users/{$user_id}/drive/root:/{item-path}:/content

    // Make sure to automatically follow redirects
    Set ComFollowRedirects Of hoHttp To True

    // This example will download /Misc/hamlet.xml
    Get ComSetUrlVar Of hoHttp "item_path" "Misc/hamlet.xml" To iSuccess
    Get ComSetUrlVar Of hoHttp "user_id" "4fe732c3-322e-4a6b-b729-2fd1eb5c6104" To iSuccess

    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbXml
    If (Not(IsComObjectCreated(hoSbXml))) Begin
        Send CreateComObject of hoSbXml
    End
    Move "utf-8" To sExpectedCharset
    Move "https://graph.microsoft.com/v1.0/users/{$user_id}/drive/root:/{$item_path}:/content" To sUrl
    Get pvComObject of hoSbXml to vSbXml
    Get ComDownloadSb Of hoHttp sUrl sExpectedCharset vSbXml To iSuccess
    Get ComLastMethodSuccess Of hoHttp To bTemp1
    If (bTemp1 <> True) Begin
        Get ComLastErrorText Of hoHttp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // If the response status code was not 200, then it failed.
    Get ComLastStatus Of hoHttp To iTemp1
    If (iTemp1 <> 200) Begin
        Get ComLastStatus Of hoHttp To iTemp1
        Showln "Response Status Code = " iTemp1
        Showln "Failed."
        Procedure_Return
    End

    // If we got here, then the file was successfully downloaded.
    Showln "Download from OneDrive successful."
    Showln "The file is contained in sbXml."


End_Procedure