Example API for upload image in QuillJS

images_controller.rb

class ImagesController < ActionController::Base
  skip_before_action :verify_authenticity_token

  def create
    @image = Image.new(image_params)

    if @image.save
      render json: { url: @image.image_url(:original) }, status: 201
    else
      render json: { message: @image.errors.full_messages.first }, status: 422
    end
  rescue => exception
    render json: { message: exception.message }, status: 500
  end

  private
    def image_params
      params.require(:image).permit(:image)
    end
end