Cookie handling in Google Apps Script - How to send cookies in header?

Question

I'm trying to write a simple script that fetches text from a webpage and processes that string. But, that website requires me to be logged in. I was successful in logging in to that website. This is how I logged in: ``` var payload = {"name1":"val1","name2":val2"}; var opt ={"payload":payload,"method":"post"}; var respose = UrlFetchApp.fetch("http://website.com/login",opt); ``` After logging in, the website places me in `http://website.com/home`. I checked `response.getContentText()` and I can confirm that I have been logged in successfully as it contains the text from `http://website.com/home`. Now I need to get the contents of `http://website.com/page` and process it. I first assumed the script can handle cookies by itself and proceeded with ``` var pagedata = UrlFetchApp.fetch("http://website.com/page);//Did not work ``` That obviously didnt work and `pagedata.getContentText()` says me to login first, which indicates cookies were not successfully passed.. I then tried to extract co…

Accepted Answer

Here you can find cookies specification: http://www.w3.org/Protocols/rfc2109/rfc2109

You have a potential issue in your code: response.getAllHeaders()['Set-Cookie'] can return either a string or a table of string if multiple 'set-cookie' attributes are sent back from the server.

Eric is right, you cannot return the cookie without digesting it.

Second error in your code:

```
var opt2 = {"header":header};
```

should be

```
var opt2 = {"headers":header};
```

Be aware also that GAS uses Google IPs. It can happen that two consecutive fetch use different IPs. The server your are connecting to may be session-IP dependant.

Are you sure the server only send you back one cookie after an authentification ?

Cookie handling in Google Apps Script - How to send cookies in header?

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