[Postman]postリクエストが送信できない

Question

railsのAPIモードでの開発しています。
Postmanを使ってPOSTリクエストして、データを作成したいのですが、
リクエストを送信できません。
どなたか原因がわかる方おられますでしょうか。

###開発環境
~ % rails -v
Rails 5.2.6

~ % bundle -v
Bundler version 1.17.2

###Postman表示画面

###各ファイル

#20210917122447create_users.rb

class CreateUsers < ActiveRecord::Migration[5.2]
  def change
    create_table :users do |t|
      t.string :name
      t.string :user_id
      t.string :email
      t.string :password

      t.timestamps
    end
  end
end

#schema.rb

# This file is auto-generated from the current state of the database. Instead
# of editing this file, please use the migrations feature of Active Record to
# incrementally modify your database, and then regenerate this schema definition.
#
# Note that this schema.rb definition is the authoritative source for your
# database schema. If you need to create the application database on another
# system, you should be using db:schema:load, not running all the migrations
# from scratch. The latter is a flawed and unsustainable approach (the more migrations
# you'll amass, the slower it'll run and the greater likelihood for issues).
#
# It's strongly recommended that you check this file into your version control system.
ActiveRecord::Schema.define(version: 2021_09_19_122338) do

  create_table "users", options: "ENGINE=InnoDB DEFAULT CHARSET=utf8", force: :cascade do |t|
    t.string "name"
    t.string "user_id"
    t.string "email"
    t.string "password"
    t.datetime "created_at", null: false
    t.datetime "updated_at", null: false
  end

end

#routes.rb

Rails.application.routes.draw do
  # For details on the DSL available within this file, see http://guides.rubyonrails.org/routing.html
  namespace :api do
    namespace :v1 do
      resources :hello, only: [:index]
      resources :users, only: [:create, :show]

    end
  end
end

#users_controller.rb

module Api
  module V1
    class UsersController < ApplicationController
      def create 
        user = User.create(user_params)

        if user.save
          render json: { status: 'SUCCESS', data: user}
        else
          render json: { status: 'ERROR', data: user.errors }
        end
      end

      private

      def user_params
        params.require(:user).permit(:name, :user_id, :email, :password)
      end
    end
  end
end

Answer 1

ダウンロード版をインストールするか、chromeの拡張機能版をインストールするかで使えるようです。