What is “compressed JSON”?

Question

I see a lot of references to \"compressed JSON\" when it comes to different serialization formats. What exactly is it? Is it just gzipped JSON or something else?

Answer 1

The most likely answer is that it really is just gzipped JSON. There is no other standard meaning to this phrase.

Re-organizing a homogenous array of JSON objects into a pair of arrays is a very useful technique to make the payload smaller and to speed up encoding and decoding, it is not commonly called "compressed JSON". I haven't run across it ever in open source or any open API, but we use this technique internally and call it "jsontable".