Hi Taylor,

Thanks again. Tried generating a header using Post instead of GET and
didn't work.

I note in the sample PHP code, line 25, that a GET is used.

I have read in numerous posts that a GET was used with the 'dummy'
request to generate the Header.

I'm not a php programmer, I do C# ASP.Net for my sins, which doesn't
help. But I have tried to go through your PHP example, which I've seen
before and I reckon I am replicating what is being done.

The header I generate is ok'd by Twitter api, i.e. get a 200 OK
response, but not using Echo.

Thanks for your help thus far.
Gerard





On Jul 26, 5:05 pm, Taylor Singletary <taylorsinglet...@twitter.com>
wrote:
> Hi Gerard,
>
> Steps 1-3 of this process are correct from the perspective of
> initially negotiating permissions for your user. Once you've performed
> steps 1-3 you shouldn't need to do these steps for this user again
> unless re-negotiating for the tokens.
>
> Your step 4: I'll improve the documentation we have for OAuth Echo
> here, as it's not obvious that you should be performing a POST for
> verify_credentials in this case. The Authorization Header you generate
> for the verify_credentials request should be a POST, as that's what
> Twitpic will do.
>
> Step 5: Yes, your OAuth authorization header for the
> verify_credentials request is presented in the
> X-Verify-Credentials-Authorization header, and X-Auth-Service-Provider
> contains "https://api.twitter.com/1/account/verify_credentials.json";
>
> Let me know if the transition to POST works for you. I have some
> sample code in PHP available here:http://gist.github.com/490753
>
> Taylor
>
> On Mon, Jul 26, 2010 at 8:21 AM, globaljobber
>
>
>
> <gerardn...@exciteinternet.co.uk> wrote:
> > Just to check my process is correct:
>
> > 1) Web page goes to twitter to get a request Token
>
> > 2) Token request granted, and a URL for user is generated with this
> > Token
>
> > 3) User authenticates app via Twitter pop-up
>
> > 3) Twitter reponse redirects to new page which has Access Token and
> > access token secret given to it.
>
> > 4) Using these tokens, and using GET and the following URL: 'https://
> > api.twitter.com/1/account/verify_credentials.json'
>
> > an authorisation header is generated.
>
> > 5) This header, along with the other header: 'X-Auth-Service-
> > Provider'  is then sent off using a post 
> > tohttp://api.twitpic.com/2/upload.json
>
> > Have I missed anything?
>
> > Regards
> > Gerard
>
> > On Jul 26, 4:03 pm, globaljobber <gerardn...@exciteinternet.co.uk>
> > wrote:
> >> Hi Taylor,
>
> >> Thanks for your reply. I just tried that and still the same 401 error.
> >> The new header was like this with spaces after each comma:
>
> >> OAuth realm="http://api.twitter.com";,
> >> oauth_consumer_key="9cjtaDfffOYCRJqyp7XKzA", oauth_nonce="59E4358",
> >> oauth_signature_method="HMAC-SHA1", oauth_timestamp="1280156335",
> >> oauth_token="15389554-7q4tjgtwJ9oB6iWZh7DvRjkn60eKTc1T4VRkNl4",
> >> oauth_version="1.0", oauth_signature="ZmiBuqZC2SUsRx2%2B7x4O7TrDDWE
> >> %3D"
>
> >> I'm also sure no call is made during the generation of the header.
>
> >> According to other posts I've read, this header is created using a GET
> >> and uses the following URL:
>
> >>https://api.twitter.com/1/account/verify_credentials.json
>
> >> Any other ideas would be grateful, as I've spent over a week on trying
> >> to get Twitpic to work.
>
> >> Thank you
> >> Gerard
>
> >> On Jul 26, 3:38 pm, Taylor Singletary <taylorsinglet...@twitter.com>
> >> wrote:
>
> >> > Hi Gerard,
>
> >> > Though I know it doesn't sound like it should matter, can you try your
> >> > request against Twitpic after inserting spaces after each comma in
> >> > your Authorization Header? Also want to make sure that you aren't
> >> > executing your verify_credentials request in the preparation sequence
> >> > (calling the resource prior to TwitPic calling it would invalidate
> >> > it).
>
> >> > Thanks,
> >> > Taylor
>
> >> > On Mon, Jul 26, 2010 at 7:26 AM, globaljobber
>
> >> > <gerardn...@exciteinternet.co.uk> wrote:
> >> > > Hi,
>
> >> > > I am having trouble getting Twitpic to authorize an image upload
> >> > > request.
>
> >> > > I have checked my Oauth 'X-Verify-Credentials-Authorization'
> >> > > authorization header with a call to
> >> > > 'https://api.twitter.com/'andIget a 200 OK status. So it appears my
> >> > > authentication requests are ok.
>
> >> > > However if I take the same header construct and make a request to
> >> > > 'http://api.twitpic.com/2/upload.json'usingOAuthEcho with Twitpic I
> >> > > continually receive a 401 Unauthorized response.
>
> >> > > My typical setup is this:
>
> >> > > Parameters for Twitpic:
>
> >> > > Requiredparameters.Add("key", "97bfc7ffddd827ca9630232def4eea82");
> >> > > Requiredparameters.Add("message", "This is a test upload");
>
> >> > > requestUrl = OAuthUtility.AppendParametersForPOST("http://
> >> > > api.twitpic.com/2/upload.json", Requiredparameters);
>
> >> > > HttpWebRequest webRequest =
> >> > > (HttpWebRequest)WebRequest.Create(requestUrl);
> >> > > webRequest.Method = "POST";
>
> >> > > webRequest.Headers.Add("X-Verify-Credentials-Authorization",
> >> > > AuthorizationHeaderForAuth);
> >> > > webRequest.Headers.Add("X-Auth-Service-Provider", "https://
> >> > > api.twitter.com/1/account/verify_credentials.json");
>
> >> > > where a typical AuthorizationHeaderForAuth looks like this:
>
> >> > > OAuth realm="http://
> >> > > api.twitter.com",oauth_consumer_key="9cjtddsslOYCRJqyp7XKzA",oauth_nonce="4­D34866",oauth_signature_method="HMAC-
> >> > > SHA1",oauth_timestamp="1230153261",oauth_token="15322554-7q4tTvSwJ9oB6iWZh7­DvRjkn60eKTc1T4VRkNl4",oauth_version="1.0",oauth_signature="gbMRJ1OA9JNiZGk­snRyFdT6iP20%3D"
>
> >> > > Can anyone please suggest where things may be going wrong?
>
> >> > > Many thanks
> >> > > Gerard- Hide quoted text -
>
> - Show quoted text -

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