XMPP user change password using Objective C

For changing logged in user's password, we need to query jabber:iq:register along with the username and new password of the user.

Here is the Objective-C code to send this password change query stream element.

    DDXMLElement *iq = [DDXMLElement elementWithName:@"iq"];

    [iq addAttributeWithName:@"type" stringValue:@"set"];

    [iq addAttributeWithName:@"to" stringValue:[self appDelegate].hostName];

    [iq addAttributeWithName:@"id" stringValue:@"changepassword"];

    

    DDXMLElement *query = [DDXMLElement elementWithName:@"query"];

    [query addAttributeWithName:@"xmlns" stringValue:@"jabber:iq:register"];

    

    DDXMLElement *username = [DDXMLElement elementWithName:@"username"];

    [username setStringValue:userName];

    [query addChild:username];

    

    DDXMLElement *password = [DDXMLElement elementWithName:@"password"];

    [password setStringValue:newPass];

    [query addChild:password];

    

    [iq addChild:query];

    

    

    [[[self appDelegate] xmppStream] sendElement:iq];

'chanepassowrd' is my custom ID I have given for this query. So that in the didReceiveIQ delegate method, I can check with this ID for password change.

  - (BOOL)xmppStream:(XMPPStream *)sender didReceiveIQ:(XMPPIQ *)iq{

        NSString *iqID  =  [[iq attributeForName:@"id"] stringValue];

    

        if([iqID isEqualToString:@"changepassword"]){

            //Password change is successful!

        }

  }

Hope this post is useful. Feel free to comment in case of any queries.