Android WebViewClient: How To Get POST request body

Question

I have a requirement to get the request body from a POST request in our WebView. It doesn't look like the WebResourceResponse in WebViewClient.shouldInterceptRequest has a method for this. Has anyone had the same issue and how did you worked around it?

Thanks!

Is it an external page or your own page which you can modify? — greenapps, Apr 07 '17 at 09:24
@NiravBhandari no, we tagged this as a technical limitation for now. — Karl Jamoralin, May 16 '17 at 15:30
Ok.. Thanks.. we also did the same thing.. Finally we are receiving parameter using GET Method via url query string — Nirav Bhandari, May 18 '17 at 11:53
Have the same issue - writing custom browser, loading WebResourceResponse on my own, and can not get body for auth on sites, for example. I am digging on this question more than a week, tell please, do you have any updates on this? — Anton Kizema, Jul 20 '17 at 16:05
Looks like this is still open, you can check (and follow up) in the Android issue tracker: https://issuetracker.google.com/issues/37014582 — Karl Jamoralin, Aug 07 '17 at 06:38

score 1 · Answer 1 · answered May 29 '22 at 17:49

1

I have created a library that aims to capture all data of all HTTP requests sent from Android WebViews, including the request body.

Using this library, you can easily read the request body like this:

    override fun shouldInterceptRequest(
        view: WebView,
        webViewRequest: WebViewRequest
    ): WebResourceResponse? {
        Log.i("RequestInspectorWebView", "Here's the body: ${webViewRequest.body}")
        return super.shouldInterceptRequest(view, webViewRequest)
    }

I hope this helps!

answered May 29 '22 at 17:49

user3738870

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This only works for XMLHttpRequest requests. Not for anything else. – AlanSTACK Oct 09 '22 at 04:47
It's supposed to work also for fetch calls as well as form submissions. Can you please file an issue on GitHub if you find a page where it doesn't work? – user3738870 Oct 09 '22 at 14:34

score 0 · Answer 2 · answered Aug 15 '18 at 03:57

0

This is the only solution I found. It is an interesting hack. I have converted to work with Xamarin.Android so I am sure it will work for Native Android.

https://stackoverflow.com/a/45655940/4880012

answered Aug 15 '18 at 03:57

Emmanuel Vazquez

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Android WebViewClient: How To Get POST request body

2 Answers2