java – How do I use OAuth within my GWT application?

java – How do I use OAuth within my GWT application?

This tutorial by Matt Raible is easily the best one Ive seen so far on OAuth and gwt. He also has a very good picture depicting the authentication flow, which I always find help. However, as Matt himself says, the solution is not 100% reliable, but it might still get you part of the way.

With this in mind, it might be better to just go with a pure javascript implementation of it. Youll find one such implementation right here. This SO thread might come in handy to you if you chose that path.

Best of luck to you.

What do you mean in your GWT application?
Do you mean client-side only?

Because on the server you can easily use the Scribe OAuth library.

It has a good documentation and is fairly simple to use.

java – How do I use OAuth within my GWT application?

For integrating OAuth and GWT, you should start with Scribe which handles the implementation of the OAuth:

https://github.com/fernandezpablo85/scribe-java

Next, you need to create a GWT widget that can handle the users interactions to acquire permission to access their account. Then grab the response token, and make the API requests to the external site.

No point re-implementing OAuth when scribe already does it for you – you just need to. Id probably aim to use a GWT Popup for doing the authentication:

http://gwt.google.com/samples/Showcase/Showcase.html#!CwBasicPopup

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