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Frequent Visitor

Get Cookie from login on website

I'm building a flow to push worked hours to the bookkeeping system. 

For authentification, I need to get the cookie I receive after logging in on the website. 




In Chrome Inspect, Network tab, I see the following:

I need to fetch the string after the second "set-cookie". Where I wrote CookiestringIneed


How can I fetch it and convert it in a Variable?



Request URL:
Request Method: POST
Status Code: 200 OK
Remote Address:
Referrer Policy: same-origin
access-control-allow-origin: *
cache-control: private
content-length: 10341
content-security-policy: default-src https: wss: data: blob: mailto: 'unsafe-inline' 'unsafe-eval' *; img-src http: https: data:;frame-ancestors *
content-type: text/html; Charset=ISO-8859-1
date: Thu, 30 Jun 2022 10:08:21 GMT
expires: Fri, 31 Dec 1999 23:00:00 GMT
pragma: no-cache
referrer-policy: same-origin
server: EBSrv
set-cookie: Adm=|144220; Path=/;; HttpOnly; Secure; SameSite=Lax
set-cookie: CookiestringIneed
set-cookie: privatestring; expires=Thu, 30-Jun-2022 12:08:20 GMT; path=/; HttpOnly; Secure; SameSite=Lax
strict-transport-security: max-age=31536000;includeSubDomains;preload
x-content-type-options: nosniff
x-xss-protection: 1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Accept-Encoding: gzip, deflate, br
Accept-Language: nl-NL,nl;q=0.9,en-US;q=0.8,en;q=0.7
Cache-Control: max-age=0
Connection: keep-alive
Content-Length: 133
Content-Type: application/x-www-form-urlencoded
Cookie: don't need this
DNT: 1
sec-ch-ua: " Not A;Brand";v="99", "Chromium";v="102", "Google Chrome";v="102"
sec-ch-ua-mobile: ?0
sec-ch-ua-platform: "Windows"
Sec-Fetch-Dest: frame
Sec-Fetch-Mode: navigate
Sec-Fetch-Site: same-origin
Sec-Fetch-User: ?1
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/ Safari/537.36




Frequent Visitor

Nobody with an answer?


If it helps.. I found a C# code that works with the one who posted it. I don't know how to use that in Power Automate



static async Task<string> GetLoginCookie(string userName, string password)
    var client = new HttpClient();
    var loginPage = await client.GetStringAsync("");

    var document = new HtmlDocument();

    var result = await client.PostAsync("",
        new FormUrlEncodedContent(new Dictionary<string, string>
            { "txtEmail", userName },
            { "txtWachtwoord", password },
            { "txtFormCheck", document.GetElementbyId("txtFormCheck").GetAttributeValue("value", "") },
            { "FP", document.GetElementbyId("FP").GetAttributeValue("value", "") },
            { "XSRVX", document.GetElementbyId("XSRVX").GetAttributeValue("value", "") },

    return result.Headers.Where(x => x.Key == "Set-Cookie").SelectMany(x => x.Value)
        .Where(x => x.StartsWith("auth-token")).Select(x => x.Split(";").FirstOrDefault()).FirstOrDefault();

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