Reading real-time value from HTML element in URL page using jQuery

Question

I've got this website: https://coinyep.com/he/ex/ETH-ILS

Inside this URL web page, there is an input element, and its HTML id is: "coinyep-input2".

I need to read its value (= approximately 637.49 ILS) using jQuery in Visual Studio.

So far, I tried everything, no success. Any help will be appreciated.

For example, in jQuery there is a command :

 document.getElementById("coinyep-input2");

==> I need to do the same thing but to do it from the URL page in order to get values in real-time (exchange rates).

score 0 · Answer 1 · answered Nov 01 '19 at 15:56

0

Does this help?

$("#coinyep-input2").attr("data-valuta");

or

$("#coinyep-input2").attr("data-value");

or

$("#coinyep-input2").val();

answered Nov 01 '19 at 15:56

leenbean16

134
12

1

Where am I suppose to paste the URL? – חיים חדד Nov 01 '19 at 16:20
I'm sorry, I guess I don't understand your question. I pasted my suggested solutions into the developer console and I got the value. – leenbean16 Nov 01 '19 at 16:36
1

I`m trying to read it using Visual Studio.... into jQuery function. – חיים חדד Nov 01 '19 at 16:38
1

My goal is to read this value and use it in Visual Studio. If it is possible in HTML to use element with src which is actually a URL, there must be a way to read a value from the input text element. – חיים חדד Nov 01 '19 at 16:57
1

I tried to explain my goal, hope you will understand – חיים חדד Nov 01 '19 at 16:59
I think you are talking about scraping the page? You can use a page scraper like cheerio.js or use an API that holds that data. Hope this helps. – leenbean16 Nov 01 '19 at 17:07
Its seems that cheerio.js works with VSCODE. I need it for VS2019. – חיים חדד Nov 01 '19 at 19:44
This link might help: [link](https://www.garethjames.net/a-guide-to-web-scrapping-tools/) – leenbean16 Nov 01 '19 at 19:49

חיים חדד · Accepted Answer · 2019-11-01T21:54:27.137

For now, I found solution in C# (server), using it by Razor on the client [Based on RSS URL]:

   public float getExchangeRate_ETH_To_ILS()
    {
        float exchangeRate;
        string[] words;
        int indexOfExchangeRate;

        using (var client = new WebClient())
        {
            try
            {
                var htmlPage = client.DownloadString("https://coinyep.com/he/rss/ETH-ILS.xml");
                words = htmlPage.Split(' ');
                indexOfExchangeRate = words.IndexOf("ILS");
                exchangeRate = (float)Convert.ToDouble(words[indexOfExchangeRate - 1]);

            }
             catch(Exception e)
             {                        
                exchangeRate = -1;
             }
        }
        return exchangeRate;
    }

in the client, I use this fucntion via model (Razor):

  var cal1 = @Model.getExchangeRate_ETH_To_ILS();

But there is a risk: if the template of the RSS will be changed, we are in trouble.

Reading real-time value from HTML element in URL page using jQuery

2 Answers2