(Objective-C) Find My External Public IP Address

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To find your external public IP address (not your LAN IP address, such as 192.168.1.* or 172.16.16.*, etc), your application would need to send a request to an HTTP server that can report back on the origin IP address. You can easily write a simple script on your own web server to do it, or you can use a service such as ipify.org.

This example shows how to send a request to the ipify.org endpoint to get your public IP address.

For more information, see https://www.ipify.org/

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

CkoHttp *http = [[CkoHttp alloc] init];
NSString *my_ip_address = [http QuickGetStr: @"https://api.ipify.org"];
if (http.LastMethodSuccess == NO) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

NSLog(@"%@%@",@"My Public IP Address: ",my_ip_address);