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DataFlex Examples

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(DataFlex) OneDrive -- Upload Binary Data from Memory

Demonstrates how to upload binary data directly from memory to the signed-in user's OneDrive. This uses OneDrive's simple upload API to upload in a single API call, which only supports uploads up to 4MB in size. (See the other example(s) for uploading larger files.)

Note: This example requires Chilkat v9.5.0.68 or greater.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-9.5.0-win32.pkg

Procedure Test
    Handle hoHttp
    Variant vPdfBytes
    Handle hoPdfBytes
    Boolean iSuccess
    Variant vReq
    Handle hoReq
    Variant vResp
    Handle hoResp
    Handle hoJson
    String sTemp1
    Integer iTemp1
    Boolean bTemp1

    //  This example 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

    //  Use your previously obtained access token here:
    //  See the following examples for getting an access token:
    //     Get Microsoft Graph OAuth2 Access Token (Azure AD v2.0 Endpoint).
    //     Get Microsoft Graph OAuth2 Access Token (Azure AD Endpoint).
    //     Refresh Access Token (Azure AD v2.0 Endpoint).
    //     Refresh Access Token (Azure AD Endpoint).

    //  (Make sure your token was obtained with the FilesRead or Files.ReadWrite scope.)
    Set ComAuthToken Of hoHttp To "MICROSOFT_GRAPH_ACCESS_TOKEN"

    //  First, let's download a PDF from the web directly into memory.  Then upload the PDF
    //  to OneDrive.
    Get Create (RefClass(cComChilkatBinData)) To hoPdfBytes
    If (Not(IsComObjectCreated(hoPdfBytes))) Begin
        Send CreateComObject of hoPdfBytes
    End
    Get pvComObject of hoPdfBytes to vPdfBytes
    Get ComQuickGetBd Of hoHttp "https://www.chilkatsoft.com/data/pdf/sample.pdf" vPdfBytes To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoHttp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    //  Upload the PDF to our OneDrive to /someFolder/sample.pdf
    Get Create (RefClass(cComChilkatHttpRequest)) To hoReq
    If (Not(IsComObjectCreated(hoReq))) Begin
        Send CreateComObject of hoReq
    End
    Set ComHttpVerb Of hoReq To "PUT"
    Set ComPath Of hoReq To "/v1.0/users/me/drive/root:/someFolder/sample.pdf:/content"
    Get pvComObject of hoPdfBytes to vPdfBytes
    Get ComLoadBodyFromBd Of hoReq vPdfBytes To iSuccess
    //  If you're uploading a file and don't know what the Content-Type should be,
    //  just use "application/octet-stream".
    Set ComContentType Of hoReq To "application/pdf"

    Get pvComObject of hoReq to vReq
    Get ComSynchronousRequest Of hoHttp "graph.microsoft.com" 443 True vReq 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 <> True) Begin
        Get ComLastErrorText Of hoHttp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    //  If successful, a 201 status code is returned, with the driveItem object in the response body for the newly created file.
    Get Create (RefClass(cComChilkatJsonObject)) To hoJson
    If (Not(IsComObjectCreated(hoJson))) Begin
        Send CreateComObject of hoJson
    End
    Set ComEmitCompact Of hoJson To False
    Get ComBodyStr Of hoResp To sTemp1
    Get ComLoad Of hoJson sTemp1 To iSuccess

    Get ComStatusCode Of hoResp To iTemp1
    If (iTemp1 <> 201) Begin
        Get ComEmit Of hoJson To sTemp1
        Showln sTemp1
        Get ComStatusCode Of hoResp To iTemp1
        Showln "Response status = " iTemp1
        Send Destroy of hoResp
        Procedure_Return
    End

    Send Destroy of hoResp

    //  Success.  Examine the driveItem JSON object:
    Get ComEmit Of hoJson To sTemp1
    Showln sTemp1
    Showln "-- Success --"

    //  Here is a sample successful response:

    //  {
    //    "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users('me')/drive/root/$entity",
    //    "@microsoft.graph.downloadUrl": "https://s5ucmg.dm2301.livefilestore.com/y4ppZYP8kjqVleyrDvphxvO8vSRxNRcYn75t5K6gNARH1cDMI3CBH3XvZ7nNHJoKMg7lQo41XLaaYiQDw1EdRg9QNTv_rtDXOnUwaipJfJyTlNXh6WOljIXOm1R2fHDk2tDq_9C9gB-prnN2NxhnXZw08YQyTnpHZXIz1w9xBxqkPn0tzF-aQSldx5e15t93Ftd1AqigReYgpF1gXtIISQs7hk2JRAYhW2d84HxEuqDXdw",
    //    "createdBy": {
    //      "application": {
    //        "displayName": "Chilkat",
    //        "id": "441c9990"
    //      },
    //      "user": {
    //        "displayName": "Matt Murdock",
    //        "id": "3a33fceb9b74cc15"
    //      }
    //    },
    //    "createdDateTime": "2017-06-03T18:18:17.7Z",
    //    "cTag": "aYzozQTMzRkNFQjlCNzRDQzE1ITQ4NjcuMjU3",
    //    "eTag": "aM0EzM0ZDRUI5Qjc0Q0MxNSE0ODY3LjA",
    //    "id": "3A33FCEB9B74CC15!4867",
    //    "lastModifiedBy": {
    //      "application": {
    //        "displayName": "Chilkat",
    //        "id": "441c9990"
    //      },
    //      "user": {
    //        "displayName": "Matt Murdock",
    //        "id": "3a33fceb9b74cc15"
    //      }
    //    },
    //    "lastModifiedDateTime": "2017-06-03T18:18:17.7Z",
    //    "name": "sample.pdf",
    //    "parentReference": {
    //      "driveId": "3a33fceb9b74cc15",
    //      "id": "3A33FCEB9B74CC15!4862",
    //      "name": "someFolder",
    //      "path": "/drive/root:/someFolder"
    //    },
    //    "size": 178399,
    //    "webUrl": "https://1drv.ms/b/s!ABXMdJvr_DM6pgM",
    //    "file": {
    //      "hashes": {
    //        "sha1Hash": "1456955C84C2DAC9DA613DC80E3017533BDC368A"
    //      },
    //      "mimeType": "application/pdf"
    //    },
    //    "fileSystemInfo": {
    //      "createdDateTime": "2017-06-03T18:18:17.7Z",
    //      "lastModifiedDateTime": "2017-06-03T18:18:17.7Z"
    //    }
    //  }


End_Procedure

 

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