GET vs POST in AJAX?

Solution 1:

You should use the proper HTTP verb according to what you require from your web service.

When dealing with a Collection URI like: http://example.com/resources/

GET: List the members of the collection, complete with their member URIs for further navigation. For example, list all the cars for sale.

PUT: Meaning defined as "replace the entire collection with another collection".

POST: Create a new entry in the collection where the ID is assigned automatically by the collection. The ID created is usually included as part of the data returned by this operation.

DELETE: Meaning defined as "delete the entire collection".

When dealing with a Member URI like: http://example.com/resources/7HOU57Y

GET: Retrieve a representation of the addressed member of the collection expressed in an appropriate MIME type.

PUT: Update the addressed member of the collection or create it with the specified ID.

POST: Treats the addressed member as a collection in its own right and creates a new subordinate of it.

DELETE: Delete the addressed member of the collection.

Source: Wikipedia

Solution 2:

Well, as for GET, you still have the url length limitation. Other than that, it is quite conceivable that the server treats POST and GET requests differently; thus the need to be able to specify what request you're doing.