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Objective-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.

Chilkat Objective-C Downloads

Objective-C
#import <CkoHttp.h>
#import <NSString.h>
#import <CkoJsonObject.h>

BOOL success = NO;

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

CkoHttp *http = [[CkoHttp alloc] init];

//  If SharePoint Windows classic authentication is used, then set the 
//  Login, Password, LoginDomain, and NtlmAuth properties.
http.Login = @"SHAREPOINT_USERNAME";
http.Password = @"SHAREPOINT_PASSWORD";
http.LoginDomain = @"SHAREPOINT_NTLM_DOMAIN";
http.NtlmAuth = YES;

//  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.Accept = @"application/json;odata=verbose";
http.AcceptCharset = @"utf-8";

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

NSString *jsonReply = [http QuickGetStr: url];
if (http.LastMethodSuccess != YES) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

CkoJsonObject *json = [[CkoJsonObject alloc] init];
[json Load: jsonReply];
json.EmitCompact = NO;

//  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.LastStatus intValue] != 200) {
    NSLog(@"%@",[json Emit]);
    NSLog(@"%@",@"Failed.");
    return;
}

NSLog(@"%@",[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:
NSLog(@"%@",@"----");
NSLog(@"%@%@",@"Title: ",[json StringOf: @"d.Title"]);
NSLog(@"%@%@",@"Email: ",[json StringOf: @"d.Email"]);
NSLog(@"%@",@"----");

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

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

jsonReply = [http QuickGetStr: url];
if (http.LastMethodSuccess != YES) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

[json Load: jsonReply];
NSLog(@"%@",[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: @"d.results"] intValue];
int i = 0;
while (i < numVersions) {
    json.I = [NSNumber numberWithInt: i];
    NSLog(@"%@%d",@"---- i = ",i);
    NSLog(@"%@%@",@"VersionLabel: ",[json StringOf: @"d.results[i].VersionLabel"]);
    NSLog(@"%@%@",@"Url: ",[json StringOf: @"d.results[i].Url"]);
    NSLog(@"%@%d",@"Size: ",[[json IntOf: @"d.results[i].Size"] intValue]);
    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