How can i get the source code after logging in with urlFetchApp? - google-apps-script

Question

I am stucked. I can log in to the website and now after i logged in, i want to get the source code of the url2. Any ideas how i can continue here?
function login() {
var url = "https://www.erevollution.com/en/login";
var payload = {
"email":"test#gmail.com",
"password":"testpassword",
"remember":"on"
};
var options = {
"payload":payload,
"method":"post",
"followRedirects" : false
};
var response = UrlFetchApp.fetch(url, options);
if ( response.getResponseCode() == 200 ) { //could not log in.
var result = "Couldn't login. Username/password is incorrect.";
}
else if ( response.getResponseCode() == 302 ) { //login was successful
var result = "Logged in successfully";
var cookie = response.getAllHeaders()['Set-Cookie'];
var header = { "Cookie":cookie[0] };
var options2 = { "headers": header };
var url2 = "https://www.erevollution.com/tr/market/1/1/1/1";
var response2 = UrlFetchApp.fetch(url2, options2);
}
Logger.log(result);
Logger.log(response2);
}

Answer 1

Issue:
You should be including the cookie in the property headers of the object you are passing as parameter of your call, as you can see in the docs.
Code sample:
var header = { "Cookie": cookie[1] };
var options = { "headers": header };
var url = "https://www.erevollution.com/tr/market/1/1/1/1";
var response = UrlFetchApp.fetch(url, options);
Reference:
UrlFetchApp.fetch(url, params)

Answer 2

I solved the problem by taking my response headers cookies and sorting them as the request headers cookies of the next page (url2) wanted. So i got the right order of cookie (newcookie) for the next page.
function Price() {
var url = "https://www.erevollution.com/en/login";
var payload = {
"email":"test#gmail.com",
"password":"testpassword",
"remember":"on"
};
var options = {
"payload":payload,
"method":"post",
"followRedirects" : false
};
var response = UrlFetchApp.fetch(url, options);
if ( response.getResponseCode() == 200 ) { //could not log in.
var result = "Couldn't login. Username/password is incorrect.";
}
else if ( response.getResponseCode() == 302 ) { //login was successful
var result = "Logged in successfully";
var cookie = response.getAllHeaders()['Set-Cookie'];
for(m=0;m<5;m++){
cookie[m]=cookie[m].substring(0,cookie[m].indexOf(";"));
}
var newcookie=cookie[4]+"; "+cookie[1]+"; "+cookie[2]+";"+cookie[3]+"; "+cookie[0];
var header = { "Cookie":newcookie };
var options2 = { "headers": header };
var url2 = "https://www.erevollution.com/tr/market/1/1/1/1";
var response2 = UrlFetchApp.fetch(url2, options2);
var content = response2.getContentText();