What is null URL?

What is null URL?

A good choice for a “null” url is about:blank . The default behavior for browsers navigating to about:blank is to create an empty document in the current site context, without needing to make any web requests for the content, because there isn’t any content.

How do you represent null in URL?

How to send NULL in HTTP query string?

1. Use a constant, like “NULL” or “~” . That works for booleans & numbers, but not for strings, as that might be the desired string value.
2. Use an empty value. Once again, that can work for booleans & numbers, but not for strings, as that might be the desired string value.

Can path params be null?

Having a URL param as null is not a valid case. POSTing to the URL api/user/userid/order/orderid is saying “create an order for this user”. GETting to that same URL would be saying “retrieve me this specific order for this user”. Both are in the context of a user.

Are query params optional?

As query parameters are not a fixed part of a path, they can be optional and can have default values.

What is optional parameter in REST API?

You can then use @DefaultValue if you need it: @GET @Path(“/job/{param1}/{param2}”) public Response method(@PathParam(“param1”) String param1, @PathParam(“param2”) String param2, @QueryParam(“optional1”) String optional1, @QueryParam(“optional2”) @DefaultValue(“default”) String optional2) { }

Is PathVariable mandatory?

3.1. Since Spring 4.3. 3, the @PathVariable annotation defines the boolean attribute required for us to indicate if a path variable is mandatory to a handler method. Since the required attribute is false, Spring will not complain if the id path variable is not sent in the request.

What is null in JSON?

The value null represents the intentional absence of any object value. It is one of JavaScript’s primitive values and is treated as falsy for boolean operations.