How do I use OAuth with PHP and cURL?

Question

I'm trying to authenticate to YouTube via their Data API and simply need to know how the headers should be translated from their example (below) to PHP+CURL function calls. The confusing part being the Authorization portion, which breaks name/value pairing with its own set of name and value pairs.

This documentation is all well and good except I don't know how to format what they require in the headers.

Their example:

POST /accounts/OAuthGetRequestToken HTTP/1.1
Host: https://www.google.com
Content-Type: application/x-www-form-urlencoded
Authorization: OAuth
               oauth_consumer_key="example.com",
               oauth_signature_method="RSA-SHA1",
               oauth_signature="wOJIO9A2W5mFwDgiDvZbTSMK%2FPY%3D",
               oauth_timestamp="137131200",
               oauth_nonce="4572616e48616d6d65724c61686176",
               oauth_version="1.0"
scope=http://gdata.youtube.com

This doesn't need to be fancy, I just need to do the key exchange for one account so I can upload videos automatically. I just don't know how to format the Authorization items into a headers array for my

curl_setopt($ch, CURLOPT_HEADER, $headers);

Help?

shadow_of__soul · Accepted Answer · 2010-06-19 21:10:50Z

19

i didn't used the youtube api before but i have made my own REST api using OAuth for a web app.

the header should be: application/x-www-form-urlencoded and as the example say, the parameters as oauth_consumer_key, oauth_signature_method,oauth_signature etc.. need to be sent using post, so you need to put it like this:

        $header[]         = 'Content-Type: application/x-www-form-urlencoded';

            curl_setopt($ch, CURLOPT_HTTPHEADER,     $header);
            curl_setopt($ch, CURLOPT_POST,        true);
            curl_setopt($ch, CURLOPT_POSTFIELDS, urlencode("oauth_consumer_key=example.com&
           oauth_signature_method=RSA-SHA1&
           oauth_signature=wOJIO9A2W5mFwDgiDvZbTSMK%2FPY%3D&
           oauth_timestamp=137131200&
           oauth_nonce=4572616e48616d6d65724c61686176&
           oauth_version=1.0"));

i hope it helps :D

Regards.

answered Jun 19, 2010 at 21:10

shadow_of__soul

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1 Comment

Trevor Bramble Over a year ago

I haven't had an opportunity to test this but it looks like a complete example so I'm going to mark it accepted. If I (or someone else) discovers a problem with the above used against the YouTube API I'll update. (You've got a couple of upvotes too, so there's that.)

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