(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 Library Downloads MAC OS X (Cocoa) Libs iOS Libs

#import <CkoHttp.h>
#import <NSString.h>
#import <CkoJsonObject.h>

// 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