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/Crystal 0.31

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

Class Method Detail

def self.from_json(value : JSON::PullParser)Source

def self.to_json(value : String, json : JSON::Builder)Source

© 2012–2019 Manas Technology Solutions.
Licensed under the Apache License, Version 2.0.
https://crystal-lang.org/api/0.31.1/String/RawConverter.html