Как мне отформатировать запрос JSON POST в мое приложение rails?

В приложении My Rails есть класс игроков, который отлично работает. Игроки могут быть созданы, удалены и обновлены с панели управления рельсами без каких-либо проблем.

Я хотел бы, чтобы удаленный коллега мог присоединиться к забаве, создав игроков, используя запрос JSON. Следуя рекомендациям автогенерированных комментариев Rails выше моего метода создания: # POST /players.json Я начал отправлять запросы на localhost:3000/players.json

JSON

{
    "player": {
    "name": "test",
    "room_id": 0,
    "skin_id": 1,
    "head_id": 2,
    "torso_id": 3,
    "legs_id": 4,
    "x_position": 5,
    "y_position": 6,
    "direction": 7,
    "action": "",
    "gender": "f"
    }
}

Однако я столкнулся с этим сообщением об ошибке:

ActionController::ParameterMissing in PlayersController#create param not found: player

Итак, я думаю, мой вопрос: Как мне настроить JSON, который я отправляю?

Дополнительная информация:

• Ruby Версия: 2.0
• Rails Версия: 4.0
• Я попытался отправить мои запросы, используя Postman

Обновление - Параметр игрока

Вот параметр игрока из моего контроллера (по запросу):

def player_params
    params.require(:player).permit(:name, :room_id, :skin_id, :head_id, :torso_id, :legs_id, :x_position, :y_position, :direction, :action, :gender)
end

Обновление 2 - Контроллер проигрывателя

class PlayersController < ApplicationController
  before_action :set_player, only: [:show, :edit, :update, :destroy]
  skip_before_filter :verify_authenticity_token, :if => Proc.new { |c| c.request.format == 'application/json' }

  # GET /players
  # GET /players.json
  def index
    @players = Player.all
  end

  # GET /players/1
  # GET /players/1.json
  def show
  end

  # GET /players/new
  def new
    @player = Player.new
  end

  # GET /players/1/edit
  def edit
    @rooms = Room.all.map { |room| [room.name, room.id] }
  end

  # POST /players
  # POST /players.json
  def create
    @player = Player.new(player_params)

    respond_to do |format|
      if @player.save
        format.html { redirect_to @player, notice: 'Player was successfully created.' }
        format.json { render action: 'show', status: :created, location: @player }
      else
        format.html { render action: 'new' }
        format.json { render json: @player.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /players/1
  # PATCH/PUT /players/1.json
  def update
    respond_to do |format|
      if @player.update(player_params)
        format.html { redirect_to @player, notice: 'Player was successfully updated.' }
        format.json { head :no_content }
      else
        format.html { render action: 'edit' }
        format.json { render json: @player.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /players/1
  # DELETE /players/1.json
  def destroy
    @player.destroy
    respond_to do |format|
      format.html { redirect_to players_url }
      format.json { head :no_content }
    end
  end

  def manage_furni
    @player = Player.find(params[:id])
    @furni = Furni.all
  end

  def add_furni
    player = Player.find(params[:id])
    player.furnis << Furni.find(params[:furni])
    redirect_to manage_furni_path(player)
  end

  def remove_furni
    player = Player.find(params[:id])
    item = InventoryItem.find(params[:item])
    player.inventory_items.delete(item)
    redirect_to manage_furni_path(player)
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_player
      @player = Player.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def player_params
      params.require(:player).permit(:name, :room_id, :skin_id, :head_id, :torso_id, :legs_id, :x_position, :y_position, :direction, :action, :gender)
    end
end

Обновление 3: журналы

(
    "Processing by PlayersController#create as JSON",
    "Completed 400 Bad Request in 31ms",
    "ActionController::ParameterMissing (param not found: player):",
    "app/controllers/players_controller.rb:103:in `player_params'",
    "app/controllers/players_controller.rb:40:in `create'",
    "Rendered /Users/drewwyatt/.rvm/gems/ruby-2.0.0-p247/gems/actionpack-4.0.0/lib/action_dispatch/middleware/templates/rescues/_source.erb (0.5ms)",
    "Rendered /Users/drewwyatt/.rvm/gems/ruby-2.0.0-p247/gems/actionpack-4.0.0/lib/action_dispatch/middleware/templates/rescues/_trace.erb (0.9ms)",
    "Rendered /Users/drewwyatt/.rvm/gems/ruby-2.0.0-p247/gems/actionpack-4.0.0/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (0.8ms)",
    "Rendered /Users/drewwyatt/.rvm/gems/ruby-2.0.0-p247/gems/actionpack-4.0.0/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb within rescues/layout (16.3ms)"
){
}