CODEWITHSUNDEEP
authenticationmatlabflickr
texnic
texnic

Reputation: 4098

Flickr OAuth authentication

I would like to test the Flickr API using Matlab. There is no Flickr API library available for Matlab, so I have to do everything myself.

I am having troubles pretty much in the beginning: cannot cope with authentication. The process description is here: http://www.flickr.com/services/api/auth.oauth.html. However, I do not understand a couple of things in Signing Requests:

First,

the key is the concatenated values of the Consumer Secret 
and Token Secret, separated by an '&'.

What are the Consumer Secret and the Token Secret? I only have the API key and API secret, issued for my test application by Flickr.

Second, the result of signing a string (which should be the output of the HMAC SHA1 function, i.e. a number, right?) in the example is w18YS2bONDPL%2FzgyzP5XTr5af4%3D. What is it? It is neither a hex number nor a base64 string.

Upvotes: 1

Views: 836

Answers (2)

texnic
texnic

Reputation: 4098

I've solved this task. The answer I put in the form of a short tutorial to Matlab file exchange: http://www.mathworks.com/matlabcentral/fileexchange/34162. I will also keep a list of additional hints in my blog http://texnical.wordpress.com/2011/12/12/flickr-api-with-user-authentication-in-matlab/.

I'd like to acknowledge the help of Sam Judson from the Flickr API discussion list.

Upvotes: 0

Sam Roberts
Sam Roberts

Reputation: 24127

You might find it easier to build an interface from MATLAB to one of the available Flickr API kits. MATLAB makes it particularly easy to call C, Java and perl, so those might be a good choice.

Upvotes: 1

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