Is creating a REST based Web Service feasible?

Hi Experts,

From the past few days I am working on REST based webservices, and It seems using REST Webservice is not convenient like in other programming languages. Some of the difficulty I have been facing..

1. The first uneasiness is parsing of JSON response received from service provider.

    (for more details of JSON parsing check the comment on blog-click here)

2. Using OAuth authentication method hard to get service information details from the service provider site.

     (for more details of problem please check the discussion-http://scn.sap.com/thread/3419666)

I am looking for your expert comment here how we can  overcome these difficulties?

Thanks

Sunil