Trouble adding Flickr account

If you move away from the password question it would be easier for you to:

a) be more trustworthy by not asking for password
b) have less problems with flickr account ids
c) bind the user and flickr profile closer to your service.

If you are curious on how to do that, get yourself an API Key, define a callback URL and use the authentication api: http://www.flickr.com/services/api/au...

Note that this does not require the user to enter anything on your page, and you still get his details. A sample URL =
flickr.com/services/auth/?api_key=3d938a92a71b43d6f04841d48bedf698&perms=read&api_sig=

(you can remove the api access after I told you your user name)

In my case I get the following XML response:

user nsid="93138891@N00" username="eckes/bernd" fullname="Bernd Eckenfels"

Besides that, the most reliable way (IMHO) to make a user identify an flickr account is not using the screen name/login name but the URL:

Tell the user to login, move to "Your Photostream" and then copy the URL from that page to your entry box. (You can check the URL for the pattern http: //www.flickr.com /photos /XXX [/]). This way it works most reliable to differentiate between yahoo id, flickr id, flickr screen name or random flickr number. This is how fdtoys is also using it.

Greetings
Bernd

PS: if you want the sample source of that Java servlet (hosted by google app engine) check out my http://itblog.eckenfels.net/ in the next days.

PPS: if you click the above link and authorize my app, just remove "Bernd's SSO Demo" afterwards from your profile, here:

http://www.flickr.com/services/auth/l...