JSON Mapping

This recipe will help you to setup a basic JSON Mapping in your application.
First you need an amber project generated with Amber CLI or from scratch.
You can use JSON.mapping to directly create an object from JSON:
Then in your routes file:
Alternatively you can use response_with helper. Here you don't need to setup content_type, however the requested path requires a .json extension, by example /json_mapping.json
class SomeController < ApplicationController
  def json_mapping
    return "empty body" if request.body.to_s.blank?
    user = User.from_json request.body.to_s
    user.username += "mapped!"
    response_with do
      json user.to_json
    end
  end
end
Also see Response With and Response & Request.
JSON API
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Last modified 18d ago