How To Make Rails Json Output Decimal Numbers Instead Of Strings
Posted by Weston Ganger
Working on an application I noticed that when getting JSON data from Rails the decimal numbers come as strings. Turns out this is to ensure it is still accurately rounded.
If you don’t care about the rounding of large numbers then you can force Rails to output the decimals as numbers.
Rails 4 & 5: Just add the following configuration option:
# config/application.rb ... module MyApp class Application < Rails::Application ... ActiveSupport.encode_big_decimal_as_string = true ... end end
Rails 3: Just add this monkey patch to your initializers:
# config/initializers/big_decimal_json_patch.rb require 'bigdecimal' class BigDecimal def as_json(options = nil) #:nodoc: if finite? self else NilClass::AS_JSON end end end
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