Flatten serde Json

This crate flatten serde_json Object in a format similar to elastic search.

Examples

There is nothing to do

json { "id": "287947", "title": "Shazam!", "release_date": 1553299200, "genres": [ "Action", "Comedy", "Fantasy" ] }

Flattens to: json { "id": "287947", "title": "Shazam!", "release_date": 1553299200, "genres": [ "Action", "Comedy", "Fantasy" ] }

Objects

json { "a": { "b": "c", "d": "e", "f": "g" } }

Flattens to: json { "a.b": "c", "a.d": "e", "a.f": "g" }

Array of objects

json { "a": [ { "b": "c" }, { "b": "d" }, { "b": "e" }, ] }

Flattens to: json { "a.b": ["c", "d", "e"], }

Array of objects with normal value in the array

json { "a": [ 42, { "b": "c" }, { "b": "d" }, { "b": "e" }, ] }

Flattens to: json { "a": 42, "a.b": ["c", "d", "e"], }

Array of objects of array of objects of ...

json { "a": [ "b", ["c", "d"], { "e": ["f", "g"] }, [ { "h": "i" }, { "e": ["j", { "z": "y" }] }, ], ["l"], "m", ] }

Flattens to: json { "a": ["b", "c", "d", "l", "m"], "a.e": ["f", "g", "j"], "a.h": "i", "a.e.z": "y", }

Collision between a generated field name and an already existing field

json { "a": { "b": "c", }, "a.b": "d", }

Flattens to: json { "a.b": ["c", "d"], }