module String::RawConverter

Overview

Converter to be used with JSON.mapping to read the raw value of a JSON object property as a String.

It can be useful to read ints and floats without losing precision, or to read an object and deserialize it later based on some condition.

require "json"

class Raw
  JSON.mapping({
    value: {type: String, converter: String::RawConverter},
  })
end

raw = Raw.from_json(%({"value": 123456789876543212345678987654321}))
raw.value   # => "123456789876543212345678987654321"
raw.to_json # => %({"value":123456789876543212345678987654321})

Defined in:

json/from_json.cr
json/to_json.cr

Class Method Summary

• .from_json(value : JSON::PullParser)
• .to_json(value : String, json : JSON::Builder)

Class Method Detail