(Unicode C++) SharePoint -- Get File Property

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Demonstrates how to get a specific property of a SharePoint file. Any of the following properties can be retrieved:

• Author: Gets a value that specifies the user who added the file.
• CheckedOutByUser: Gets a value that returns the user who has checked out the file.
• CheckInComment: Gets a value that returns the comment used when a document is checked in to a document library.
• CheckOutType: Gets a value that indicates how the file is checked out of a document library. Represents an
• ContentTag: Returns internal version of content, used to validate document equality for read purposes.
• CustomizedPageStatus: Gets a value that specifies the customization status of the file. Represents an
• ETag: Gets a value that specifies the ETag value.
• Exists: Gets a value that specifies whether the file exists.
• Length: Gets the size of the file in bytes, excluding the size of any Web Parts that are used in the file.
• Level: Gets a value that specifies the publishing level of the file. Represents an
• ListItemAllFields: Gets a value that specifies the list item field values for the list item corresponding to the file.
• LockedByUser: Gets a value that returns the user that owns the current lock on the file.
• MajorVersion: Gets a value that specifies the major version of the file.
• MinorVersion: Gets a value that specifies the minor version of the file.
• ModifiedBy: Gets a value that returns the user who last modified the file.
• Name: Gets the name of the file including the extension.
• ServerRelativeUrl: Gets the relative URL of the file based on the URL for the server.
• TimeCreated: Gets a value that specifies when the file was created.
• TimeLastModified: Gets a value that specifies when the file was last modified.
• Title: Gets a value that specifies the display name of the file.
• UiVersion: Gets a value that specifies the implementation-specific version identifier of the file.
• UiVersionLabel: Gets a value that specifies the implementation-specific version identifier of the file.
• Versions: Gets a value that returns a collection of file version objects that represent the versions of the file.

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#include <CkHttpW.h>
#include <CkJsonObjectW.h>

void ChilkatSample(void)
    {
    // This requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkHttpW http;

    // If SharePoint Windows classic authentication is used, then set the 
    // Login, Password, LoginDomain, and NtlmAuth properties.
    http.put_Login(L"SHAREPOINT_USERNAME");
    http.put_Password(L"SHAREPOINT_PASSWORD");
    http.put_LoginDomain(L"SHAREPOINT_NTLM_DOMAIN");
    http.put_NtlmAuth(true);

    // The more common case is to use SharePoint Online authentication (via the SPOIDCRL cookie).
    // If so, do not set Login, Password, LoginDomain, and NtlmAuth, and instead
    // establish the cookie as shown at SharePoint Online Authentication

    // Indicate that we want a JSON reply
    http.put_Accept(L"application/json;odata=verbose");
    http.put_AcceptCharset(L"utf-8");

    // Get the Author property.
    const wchar_t *url = L"https://SHAREPOINT_HTTPS_DOMAIN/_api/web/GetFileByServerRelativeUrl('/Documents/VCAC-document.docx')/Author";

    const wchar_t *jsonReply = http.quickGetStr(url);
    if (http.get_LastMethodSuccess() != true) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    CkJsonObjectW json;
    json.Load(jsonReply);
    json.put_EmitCompact(false);

    // Make sure it was a success response, and that we really have metadata.
    // If it was an error response, then the JSON is error information..
    if (http.get_LastStatus() != 200) {
        wprintf(L"%s\n",json.emit());
        wprintf(L"Failed.\n");
        return;
    }

    wprintf(L"%s\n",json.emit());

    // The Author property returns JSON looking like this:

    // {
    //   "d": {
    //     "__metadata": {
    //       "id": "Web/GetUserById(18)",
    //       "uri": "https://SHAREPOINT_HTTPS_DOMAIN/_api/Web/GetUserById(18)",
    //       "type": "SP.User"
    //     },
    //     "Groups": {
    //       "__deferred": {
    //         "uri": "https://SHAREPOINT_HTTPS_DOMAIN/_api/Web/GetUserById(18)/Groups"
    //       }
    //     },
    //     "Id": 18,
    //     "IsHiddenInUI": false,
    //     "LoginName": "i:0#.w|mydomain\\msmith",
    //     "Title": "Mike Smith",
    //     "PrincipalType": 1,
    //     "Email": "msmith@mydomain.com",
    //     "IsSiteAdmin": false,
    //     "UserId": {
    //       "__metadata": {
    //         "type": "SP.UserIdInfo"
    //       },
    //       "NameId": "s-1-5-21-3433503314-2897774614-343593928-1137",
    //       "NameIdIssuer": "urn:office:idp:activedirectory"
    //     }
    //   }
    // }
    // 

    // Get the Title and Email:
    wprintf(L"----\n");
    wprintf(L"Title: %s\n",json.stringOf(L"d.Title"));
    wprintf(L"Email: %s\n",json.stringOf(L"d.Email"));
    wprintf(L"----\n");

    // --------------------------------------------------------------------

    // Get the Versions property.
    url = L"https://SHAREPOINT_HTTPS_DOMAIN/_api/web/GetFileByServerRelativeUrl('/Documents/VCAC-document.docx')/Versions";

    jsonReply = http.quickGetStr(url);
    if (http.get_LastMethodSuccess() != true) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    json.Load(jsonReply);
    wprintf(L"%s\n",json.emit());

    // The Versions JSON reply looks like this:

    // {
    //   "d": {
    //     "results": [
    //       {
    //         "__metadata": {
    //           "id": "a8d025e2-8255-4487-9edb-9e796ab2889c",
    //           "type": "SP.FileVersion"
    //         },
    //         "CreatedBy": {
    //           "__deferred": {
    //             "uri": "https://SHAREPOINT_HTTPS_DOMAIN/_api/CreatedBy"
    //           }
    //         },
    //         "CheckInComment": "",
    //         "Created": "2016-03-15T02:22:26Z",
    //         "ID": 1,
    //         "IsCurrentVersion": false,
    //         "Size": 21082,
    //         "Url": "_vti_history/1/Documents/VCAC-document.docx",
    //         "VersionLabel": "0.1"
    //       },
    //       {
    //         "__metadata": {
    //           "id": "8ab3eadd-9126-4f65-a2a3-3b0689c592d6",
    //           "type": "SP.FileVersion"
    //         },
    //         "CreatedBy": {
    //           "__deferred": {
    //             "uri": "https://SHAREPOINT_HTTPS_DOMAIN/_api/CreatedBy"
    //           }
    //         },
    //         "CheckInComment": "",
    //         "Created": "2016-03-15T05:28:24Z",
    //         "ID": 2,
    //         "IsCurrentVersion": false,
    //         "Size": 21082,
    //         "Url": "_vti_history/2/Documents/VCAC-document.docx",
    //         "VersionLabel": "0.2"
    //       }
    //     ]
    //   }
    // }
    // 

    // Get each VersionLabel, Size, and Url...
    int numVersions = json.SizeOfArray(L"d.results");
    int i = 0;
    while (i < numVersions) {
        json.put_I(i);
        wprintf(L"---- i = %d\n",i);
        wprintf(L"VersionLabel: %s\n",json.stringOf(L"d.results[i].VersionLabel"));
        wprintf(L"Url: %s\n",json.stringOf(L"d.results[i].Url"));
        wprintf(L"Size: %d\n",json.IntOf(L"d.results[i].Size"));
        i = i + 1;
    }

    // The output is:

    // ---- i = 0
    // VersionLabel: 0.1
    // Url: _vti_history/1/Documents/VCAC-document.docx
    // Size: 21082
    // ---- i = 1
    // VersionLabel: 0.2
    // Url: _vti_history/2/Documents/VCAC-document.docx
    // Size: 21082
    }