REST : different representations of the same data

How to structure an API where the same data may request in different format, in a RESTful format. For example.

GET /person/<id>  //get the details of resource <id>

Now depending on the client (browser) requirement, the data may send as html (say normal rendering) or Json (say ajax call). So my doubts are

1. Can I keep the same url for both requests, or should keep them se开发者_开发问答perate?
2. How to detect whether the request is for html/Json at the server. The request type is same (GET). So which parameter should I consider.
3. How to detect the difference in data type at client (html/Json)\

thanks,

bsr.

Similar question: REST Content-Type: Should it be based on extension or Accept header?

The accepted answers has great points.

Can I keep the same url for both requests, or should keep them seperate?

Yes, keep them the same. Its the same resource, you're just asking for different representations of it.

How to detect whether the request is for html/Json at the server. The request type is same (GET). So which parameter should I consider.

You can use the Accept header to specify the return content-type.

How to detect the difference in data type at client (html/Json)\

You would look at the "Content-Type" header.

What about adding a variable for output type?