(Objective-C) SharePoint -- Delete a File

Demonstrates how to delete a SharePoint file.

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#import <CkoHttp.h>
#import <CkoHttpRequest.h>
#import <CkoHttpResponse.h>
#import <CkoXml.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

// This example will delete the file named "penguins2.jpg" 
// which is located in the "/Documents" folder.

CkoHttpRequest *req = [[CkoHttpRequest alloc] init];
req.HttpVerb = @"POST";
req.Path = @"/_api/web/GetFileByServerRelativeUrl('/Documents/penguins2.jpg')";

// 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"];

// Add additional required headers.
[req AddHeader: @"IF-MATCH" value: @"*"];
[req AddHeader: @"X-HTTP-Method" value: @"DELETE"];

// Send the POST using https (TLS). Port 443 is the default port for 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;
}

// If failed, the response body contains XML 
CkoXml *xml = [[CkoXml alloc] init];
[xml LoadXml: resp.BodyStr];

if ([resp.StatusCode intValue] != 200) {
    NSLog(@"%@%d",@"Response status code = ",[resp.StatusCode intValue]);
    NSLog(@"%@",[xml GetXml]);

    // For example, if the file did not exist, this would be the XML response:
    // <?xml version="1.0" encoding="utf-8" ?>
    // <m:error xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata">
    //     <m:code>-2146232832, Microsoft.SharePoint.SPException</m:code>
    //     <m:message xml:lang="en-US">The file /Documents/penguins2.jpg does not exist.</m:message>
    // </m:error>
    // 

    NSLog(@"%@",@"Failed");

    return;
}

// If successful, the response body is empty.
NSLog(@"%@",@"Success.");