Modify a UIWebView request

Question

I want to change all user request to use the POST method (as opposed to GET). If the request is already a POST request then append a new parameter 'userId=2382938' to the post data. If the request is GET then change it to POST and add 'userId=2382938'.

I know I can intercept a UIWebView using this. Not sure where to go from here.

- (BOOL)webView:(UIWebView *)webView
shouldStartLoadWithRequest:(NSURLRequest *)request
 navigationType:(UIWebViewNavigationType)navigationType {

//add post parameter here
}

could you be a little more specific as to what you would like to do? — PengOne, May 26 '11 at 19:44
I want to change all user request to use the POST method (as opposed to GET). If the request is already a POST request then append a new parameter 'userId=2382938' to the post data. If the request is GET then change it to POST and add 'userId=2382938'. Thanks — Tim, May 26 '11 at 19:49
assuming that u have control over the html inside the webview, you can also do what you want by catching form posts (via onsubmit) inside the html and doing a bit of magic in javascript :) — Ali Kazmi, May 26 '11 at 20:10
I don't have control over the HTML. It's a 3rd party website. — Tim, May 26 '11 at 20:16
Look my answer here [Modify URL request](http://stackoverflow.com/a/20484616/1460329) — Jorge Balleza, Dec 10 '13 at 02:12

score 0 · Answer 1 · edited Oct 24 '14 at 07:36

You probably want to do something like that.

(BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {

   NSMutableURLRequest *modifiedRequest = [request mutableCopy];

   modifiedRequest.URL = [NSURL URLWithString:parametrisedURL]; // here you will add your desired parameters

   modifiedRequest.HTTPMethod = @"POST";

   [webview loadRequest:modifiedRequest];

   // Do other stuff if any

   return YES;
}

score 0 · Accepted Answer · edited May 23 '17 at 11:55

0

From How do I insert a POST request into a UIWebView:

You can use an NSMutableURLRequest, set the HTTP method to POST, and then load it into your UIWebView using -loadRequest.

edited May 23 '17 at 11:55

Community

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answered May 26 '11 at 19:51

PengOne

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How do I convert it to a MutableURLRequest? – Tim May 26 '11 at 20:07
@Tim: `[request mutableCopy]`? – Wilbur Vandrsmith May 26 '11 at 23:15
so use the function in my main post, and inside the function (convert request to MutableURLRequest, change to POST, add new parameter, then use loadRequest and return NO)? Is this correct? – Tim May 26 '11 at 23:25
@Tim: That sounds fine. Try it out. – Wilbur Vandrsmith May 27 '11 at 00:06
How do you append data to an existing POST NSUrlRequest? – Tim May 27 '11 at 02:41

Modify a UIWebView request

2 Answers2