respond_to_formats

🔄 Handle Multiple Response Formats

Rails controllers can respond to different formats (HTML, JSON, XML) using respond_to. This makes your endpoints flexible for web pages and API clients. Use format blocks inside actions to render the appropriate response based on the request's Accept header.

class ProductsController < ApplicationController
  def index
    @products = Product.all
    respond_to do |format|
      format.html # renders index.html.erb
      format.json { render json: @products }
    end
  end
end