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Contents
# frozen_string_literal: true
##
# Tries to parse a JSON string and return the corresponding JSON object (Ruby hash, array, etc).
# Returns default value when fails to parse (default value is set to `nil` by default).
#
# IMPORTANT: `JSON::ParseError` is not the only exception that can be raised by `JSON.parse`.
# Check this link (`Ctrl + f' for `error'):
# https://github.com/ruby/ruby/blob/master/ext/json/lib/json.rb
#
module ConvenientService
module Examples
module Standard
class RequestParams
module Utils
module JSON
class SafeParse < ConvenientService::Command
attr_reader :json_string, :default_value
def initialize(json_string, default_value: nil)
@json_string = json_string
@default_value = default_value
end
def call
return default_value unless json_string.instance_of?(::String)
begin
::JSON.parse(json_string)
rescue
default_value
end
end
end
end
end
end
end
end
end
Version data entries
5 entries across 5 versions & 1 rubygems