JSON Schema Reader

Currently contains one script, json_tree.rb which takes a JSON schema and prints a pretty tree.

Each property is printed in the form [!]<name>[:type][:units].

The optional ! indicates that the property is required, type is the property type, typically object, string or number, but could be any of the valid JSON Schema types, and if the property has an associated unit it is printed in the units place.

Usage

$ gem install json-schema-reader
$ jsontree path/to/file.json

Example

Taken from part of the Signal K schema.

navigation
├courseOverGroundMagnetic:rad
│ ├value:number
│ ├timestamp:string:ISO-8601 (UTC)
│ ├source:object
│ │ ├!label:string
│ │ ├!type:string
│ │ ├src:string
│ │ ├pgn:number
│ │ ├sentence:string
│ │ └talker:string
│ ├_attr:object
│ │ ├_mode:integer
│ │ ├_owner:string
│ │ └_group:string
│ └meta:object
│   ├displayName:string
│   ├longName:string
│   ├shortName:string
│   ├gaugeType:string
│   ├units:string
│   ├timeout:number
│   ├warnMethod:string
│   ├alarmMethod:string
│   └zones:array
├courseOverGroundTrue:rad