ruby-on-rails - 使用 json 发送 post 请求来设计注册

Question

我想使用 postman、rails 5 和 devise gem 创建一个用户帐户。我向设计用户模型添加了一个用户名字段，并确认它工作正常。但是，当我向 Rails API 发送发布请求时，它没有按预期创建用户。以下是整个过程的过程:

我将此 JSON post 请求发送到 URL:http://0.0.0.0:3000/users/

{
    "username": "username",
    "email": "<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="4d232c20280d28352c203d2128632e2220" rel="noreferrer noopener nofollow">[email protected]</a>",
    "password": "password",
    "password_confirmation": "password"
}

发送此请求后，我收到以下响应:

{
    "status": "ERROR",
    "message": "Could not create new user account",
    "data": {
        "email": [
            "can't be blank"
        ],
        "password": [
            "can't be blank"
        ]
    }
}

我创建了另一个继承自 Devise::RegistrationController 的注册 Controller 。这是:

  1 module Api
  2   module V1
  3     class RegistrationsController < Devise::RegistrationsController
  4 
  5       before_action :configure_permitted_parameters
  6       respond_to :json

  7       def new
  8         user = User.new(user_params)
  9       end
 10 
 11       def create
 12            user = User.create(username: params[:username], 
 13                         email: params[:email], 
 14                         password: params[:password],
 15                         password_confirmation: params[:password_confirmation])
 16      
 17         if user.save 
 18           render json: {status: "SUCCESS", message: "Created new user account", data: user }, status: :ok
 19         else 
 20           render json: {status: "ERROR", 
 21                         message: "Could not create new user account", 
 22                         data: user.errors}, 
 23                         status: :unprocessable_entity
 24  
 25         end
 26       end
 27       
 28       private 
 29       
 30       def user_params
 31         params.require(:user).permit(:username, :email, :password, :password_confirmation)
 32       end
 33 
 34       protected
 35 
 36       def configure_permitted_parameters
 37         devise_parameter_sanitizer.permit(:sign_up, keys: [:username])
 38       end
 39 
 40     end
 41   end
 42 end

知道为什么我会收到此回复以及如何解决它吗？我从 params 哈希中获取电子邮件和密码，并将其传递到创建函数中。我不知道为什么我收到的回复显示它是空的

Answer 1

您应该格式化嵌套在“user”下的参数，例如:

{  
"user": {
    "username": "username",
    "email": "<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="026c636f6742677a636f726e672c616d6f" rel="noreferrer noopener nofollow">[email protected]</a>",
    "password": "password",
    "password_confirmation": "password"
  }
}

如 this answer 上所示