How to call external JSON Rest service from GWTP ?

[sbeex sbeex]

Hello guys,

I have done a REST/Json server in PHP that return data on demand. That works pretty well with my android app.

Now I would like to make a GWTP client with GXT that can communicate with that same server.

Is there a way to do that ? Because I really don't know how I can do that with GWTP. I only used that framework with GWT-RPC until now.

Thank you for your help and tips.

Cheers,

Sébastien Vermeille

[Richard Wallis]

Hi Sevastien

Are you familiar with jsonp? http://en.wikipedia.org/wiki/JSONP

You first need to make your REST server support jsonp before gwt can communicate with it.

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[sbeex sbeex]

Hello thank you for this tip ! In fact currently both server are hosted on the same machine. My problem is how to get remote json to my actionhandler ... I really don't know how to do that

[Maxime Mériouma-Caron]

You can use GWTP REST dispatcher (https://github.com/ArcBees/GWTP/wiki/Rest-Dispatch)

The Car Store sample is a good place to start to see how it's used (https://github.com/ArcBees/GWTP/tree/master/gwtp-carstore). There's actually no example with a remote server, but the REST dispatch supports absolute URL in the @Path annotation you put on your client service class. If all your REST paths are going to point to your external server, you can also bind @RestApplicationPath to your external server's url with gin.

[Eric Chabot]

Actually in the carstore the phonegap module uses remote server.

https://github.com/ArcBees/GWTP/wiki/Phonegap-support

[Sébastien Vermeille]

Ok so it is still a lot of work for something that is really easy behind... I'm thinking more and more of Vaadin looks simpler.

[Christopher Viel]

Look at the Rest Dispatch: https://github.com/ArcBees/GWTP/wiki/Rest-Dispatch. When it comes to bind the API path change the value for the path of your api. Absolute paths should work as well.

eg: bindConstant().annotatedWith(RestApplicationPath.class).to("http://myserver.com/api/v1");

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