json-typeof

This adds instance method #typeof to JSON::Any, which returns the type of the underlying JSON, according to the OpenAPI/Swagger variant of JSON Schema (*).

(*) in Javascript, typeof 1.2 and typeof 12 both return number, however this method returns number and integer respectively, in line with OpenAPI/Swagger

Installation

Add this to your application's shard.yml:

dependencies:
  json-typeof:
    github: sa-0001/json-typeof-cr

Usage & Examples

require "json-typeof"

json_value = JSON.parse %([1,2,3])
p json_value.typeof == JSON::Typeof::Array
p json_value.typeof.to_s == "array"

json_value = JSON.parse %(true)
p json_value.typeof == JSON::Typeof::Boolean
p json_value.typeof.to_s == "boolean"

json_value = JSON.parse %(123)
p json_value.typeof == JSON::Typeof::Integer
p json_value.typeof.to_s == "integer"

json_value = JSON.parse %(null)
p json_value.typeof == JSON::Typeof::Null
p json_value.typeof.to_s == "null"

json_value = JSON.parse %(1.23)
p json_value.typeof == JSON::Typeof::Number
p json_value.typeof.to_s == "number"

json_value = JSON.parse %({"a":"b"})
p json_value.typeof == JSON::Typeof::Object
p json_value.typeof.to_s == "object"

json_value = JSON.parse %("abc")
p json_value.typeof == JSON::Typeof::String
p json_value.typeof.to_s == "string"