406 error when responding with json

Question

I\'m trying to get a rails app running with the node.js framework batman.js via the batman-rails gem.

When I\'m responding with json in my rails controller, I get a 406

Answer 1

Alright, I made a very simple app to check out your situation:

SamplesController.rb

class SamplesController < ApplicationController
  respond_to :json

  def show
    respond_with Sample.find(params[:id])
  end

  def index
    respond_with Sample.all
  end
end

When I visited /samples.json and samples/1.json, it worked as intended. However, when I went to /samples and /samples/1 (no .json extension), I got a 406 error.

In order to have the URL's work without the .json extension, you need to modify your config/routes.rb file as follows:

resources :samples, defaults: {format: :json}

Otherwise, the Rails application will attempt to respond to the request with an HTML response.