Handling Links in JSON

by January 22, 2018

The CA Live API Creator team has been working on our handling of links, and a lot of question have arisen. There is a lot of confusion over how to represent links.

One possibility:

The problem with that is that it’s not immediately obvious to a program that this is a link (it could be a piece of text that just happens to be a URI), and even worse, this tells us nothing about what’s on the other side of this link, or how we’re related to it.
Another possibility is to have composite links, e.g.:

This is much more descriptive, although there is still a lot of uncertainty regarding the “proper” values for rel and type.

There is in fact a registry of “legal” values for the rel attribute, but a quick look at it should convince you that it’s not all that useful in a REST/JSON context.
It’s become quite common for JSON objects to include a links section, for example:

 

This makes it very clear, but it’s also rather verbose.
http://www.mnot.net/blog/2011/11/25/linking_in_json