How to monitor http requests from WKWebView?

Question

So, it is pretty clear question I think. This question is about monitoring ajax requests. I tried it but didn't work as I wanted.

How can I call a function in my native iOS Obj-C application every time a request is sent, received and the browsing link is changed in WKWebView?

score 1 · Accepted Answer · answered Feb 06 '18 at 14:06

Ok, I found a way.

You can create a new class (let's call it MyURLProtocol) which has NSURLProtocol as subclass. Then add this function to MyURLProtocol:

+ (BOOL)canInitWithRequest:(NSURLRequest *)request {
    NSLog(@"URL = %@", request.URL.absoluteString);
    return NO;
}

This function will be called each time your webview makes a request. And then you need to register this protocol with the loading system. In your Appdelegate.m file include your class and add/replace didFinishLaunchingWithOptions function with this:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    [NSURLProtocol registerClass:[MyURLProtocol class]];
    return YES;
}

All set. Now you can edit canInitWithRequest function and do what you want with the request.

doesn't seem to work in Swift iOS 13 when there are multiple webviews in the app :/ — zaitsman, Nov 25 '19 at 23:50

How to monitor http requests from WKWebView?

1 Answers1