Modify a UIWebView request

I want to change all开发者_运维技巧 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
}

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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.

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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;
}