module JSON::HashValueConverter(Converter)

Overview

Converter to be used with JSON.mapping to serialize the Hash(K, V) values elements with the custom converter.

require "json"

class Timestamp
  JSON.mapping({
    values: {type: Hash(String, Time), converter: JSON::HashValueConverter(Time::EpochConverter)},
  })
end

timestamp = Timestamp.from_json(%({"birthdays":{"foo":1459859781,"bar":1567628762}}))
timestamp.values  # => {"foo" => 2016-04-05 12:36:21 UTC, "bar" => 2019-09-04 20:26:02 UTC)}
timestamp.to_json # => {"birthdays":{"foo":1459859781,"bar":1567628762}}

Defined in:

json/from_json.cr
json/to_json.cr

Class Method Summary

• .from_json(pull : JSON::PullParser)
• .to_json(values : Hash, builder : JSON::Builder)

Class Method Detail