Public API – iOS DELETE Fence

The following code demonstrates the deletion of a fence.

For the code below, the Customer API Key is stored within a singleton Configuration object.

/*
 *  Send the URL request with the required method for processing.
 *  The Customer API Key is stored in a shared singleton object.
 */
+ (void)sendDeleteFence: (NSString *)fenceId inZone: (NSString *)zoneId
{
    //  Retrieve all existing zones for this app id
    NSString  *apiDeleteFence = [ NSString stringWithFormat: @"https://api.bluedotinnovation.com/1/fences?customerApiKey=%@&zoneId=%@&fenceId=%@",
                                      Configuration.instance.customerApiKey,
                                      zoneId,
                                      fenceId ];
     
    NSURLSession *session = [ NSURLSession sharedSession ];
 
    //  Ensure that the command string is escaped properly for use in HTTP
    NSString  *escapedQuery = [ apiDeleteFence stringByAddingPercentEncodingWithAllowedCharacters: [ NSCharacterSet URLQueryAllowedCharacterSet ] ];
     
    NSMutableURLRequest *request = [ NSMutableURLRequest requestWithURL: [ NSURL URLWithString: escapedQuery ] ];
    [ request setHTTPMethod: @"DELETE" ];
    
    //  Create an asynchronous connection; this will utilise App Transport Security (ATS) to an https connection is required
    NSURLSessionDataTask *task = [ session dataTaskWithRequest: request completionHandler: ^( NSData *data, NSURLResponse *response, NSError *error )
    {
        if ( error == nil )
        {
            if ( [ data length ] > 0 )
            {
                //  Retrieve the response as a dictionary containing the JSON
                NSDictionary *jsonResponse = [ NSJSONSerialization JSONObjectWithData: data options: 0 error: nil ];
                
                //  Ensure that the response code from the Public API is for a successful transaction
                if ( ( ( NSString *)jsonResponse[ @"messageCode" ] ).intValue != 200 )
                {
                    NSLog( @"Delete fence error:\n%@", jsonResponse );
                }
            }
        }
        else
        {
            NSLog( @"Delete fence error: %@", error );
        }
    } ];
  
    //  Start the URL session task
    [ task resume ];
}