(Objective-C) SharePoint -- Rename Folder

This example shows how to rename SharePoint folder.

Renaming a folder is not straightforward. Apparently, the information published by Microsoft is incorrect and simply doesn't work (the information about how to update a folder by using the MERGE method is incorrect).

To rename a folder requires two steps, as demonstrated by this example.

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#import <CkoHttp.h>
#import <NSString.h>
#import <CkoJsonObject.h>
#import <CkoStringBuilder.h>
#import <CkoHttpRequest.h>
#import <CkoHttpResponse.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

// The first step in renaming a file is send a GET to the /ListItemAllFields endpoint:
// Indicate we want a JSON response.
[http SetRequestHeader: @"Accept" value: @"application/json;odata=verbose"];

// In this example, we want to rename the folder "/Documents/ChilkatTest" to "/Documents/ChilkatTest2"
// If your Sharepoint site is within a site collection, then use "https://SHAREPOINT_HTTPS_DOMAIN/sites/teamA/_api/web/GetFolderByServerRelativeUrl('/sites/teamA/Documents/ChilkatTest')/ListItemAllFields" where "teamA" is the name of the site.
NSString *sAllFields = [http QuickGetStr: @"https://SHAREPOINT_HTTPS_DOMAIN/_api/web/GetFolderByServerRelativeUrl('/Documents/ChilkatTest')/ListItemAllFields"];
if (http.LastMethodSuccess != YES) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

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

NSLog(@"%@",[json Emit]);

// The JSON response will look like this:
// We'll need to get the "id", "etag", and "type" for the next step.  The "id" for the
// sample below is "Web/Lists(guid'b0d92cec-4be1-4e52-943d-ebcb432e1c3b')/Items(62)"

// 
// { 
//   "d": { 
//     "__metadata": { 
//       "id": "Web/Lists(guid'b0d92cec-4be1-4e52-943d-ebcb432e1c3b')/Items(62)",
//       "uri": "https://SHAREPOINT_HTTPS_DOMAIN/_api/Web/Lists(guid'b0d92cec-4be1-4e52-943d-ebcb432e1c3b')/Items(62)",
//       "etag": "\"4\"",
//       "type": "SP.Data.DocumentsItem"
//     },
//     ...
//     ...
//     "FileSystemObjectType": 1,
//     "Id": 62,
//     "ContentTypeId": "0x012000FA905915D7D8F7458C1A0AF1E981BFF5",
//     "Title": "ChilkatTest",
//     "OData__dlc_DocId": null,
//     "OData__dlc_DocIdUrl": null,
//     "URL": null,
//     "DocumentSetDescription": null,
//     "EditorId": 25,
//     "ID": 62,
//     "Created": "2017-04-12T19:18:29",
//     "AuthorId": 25,
//     "Modified": "2017-04-12T19:49:15",
//     "OData__CopySource": null,
//     "CheckoutUserId": null,
//     "OData__UIVersionString": "1.0",
//     "GUID": "71f30f44-e33a-48e7-b4d8-9d619ba1ad69"
//   }
// }

// -------------------------------------------------------------------------------
// Step 2...

// To rename a folder, we're going to POST to
// https://SHAREPOINT_HTTPS_DOMAIN/_api/Web/Lists(guid'b0d92cec-4be1-4e52-943d-ebcb432e1c3b')/Items(62)
// with a request body containing the following JSON:
// 
//     { "__metadata": { "type": "THE_TYPE_FROM_ABOVE" }, "Title": "New title", "FileLeafRef": "New title"}
// 

// Build the Path, which is "/_api/" + the id from above.
CkoStringBuilder *sbPath = [[CkoStringBuilder alloc] init];
[sbPath Append: @"/_api/"];
[sbPath Append: [json StringOf: @"d.__metadata.id"]];

CkoHttpRequest *req = [[CkoHttpRequest alloc] init];
req.HttpVerb = @"POST";
req.Path = [sbPath GetAsString];

// We need to add a form digest value in the X-RequestDigest header field.
// See this example for details on
// how to get (and cache) a form digest value
[req AddHeader: @"X-RequestDigest" value: @"SHAREPOINT_FORM_DIGEST"];

// Set the Content-Type, and indicate that a JSON response is desired.
req.ContentType = @"application/json;odata=verbose";
[req AddHeader: @"Accept" value: @"application/json;odata=verbose"];

// We need a few more headers...
[req AddHeader: @"IF-MATCH" value: [json StringOf: @"d.__metadata.etag"]];
[req AddHeader: @"X-HTTP-Method" value: @"MERGE"];

// Create and add the JSON body.
CkoJsonObject *jsonBody = [[CkoJsonObject alloc] init];
[jsonBody UpdateString: @"__metadata.type" value: [json StringOf: @"d.__metadata.type"]];
[jsonBody UpdateString: @"Title" value: @"ChilkatTest2"];
[jsonBody UpdateString: @"FileLeafRef" value: @"ChilkatTest2"];
[req LoadBodyFromString: [jsonBody Emit] charset: @"utf-8"];

// Send the POST using HTTPS.
BOOL bUseTls = YES;
CkoHttpResponse *resp = [http SynchronousRequest: @"SHAREPOINT_HTTPS_DOMAIN" port: [NSNumber numberWithInt: 443] ssl: bUseTls req: req];
if (http.LastMethodSuccess != YES) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

// The response body contains JSON.
// When successful, it will be empty.
[json Load: resp.BodyStr];
json.EmitCompact = NO;

NSLog(@"%@%d",@"Response status code = ",[resp.StatusCode intValue]);

// The expected success response code is 204.
if ([resp.StatusCode intValue] != 204) {
    NSLog(@"%@%d",@"Response status code = ",[resp.StatusCode intValue]);
    NSLog(@"%@",[json Emit]);
    NSLog(@"%@",@"Failed");

    return;
}

// The response body is empty for a 204 (success) response...
NSLog(@"%@",@"Success.");