我正在构建一个Web应用程序，它使用Ember作为客户端，Node作为服务器端。我使用的数据库是Mongo。一切都在服务器端工作（我可以使用Postman来获取，POST，PUT和DELETE用户。我想我几乎把所有东西都连接到了客户端，但当我导航到Ember时，Ember给我一个最后的错误/ users route：
ember.debug.js:28535 Error while processing route: users Assertion Failed: You must include an 'id' for user in an object passed to 'push' Error: Assertion Failed: You must include an 'id' for user in an object passed to 'push'
为什么会发生这种情况/如何解决这个问题？
以下是我的server.js文件的相关部分：
var User = require('./models/user');
// configure app to use bodyParser()
// this will let us get the data from a POST
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
// Add CORS headers
app.use(function (request, response, next) {
response.header("Access-Control-Allow-Origin", "http://localhost:4200");
response.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
response.header("Access-Control-Allow-Resource", "*");
response.header("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE");
next();
});
var port = process.env.PORT || 8080; // set our port
// ROUTES FOR OUR API
var router = express.Router(); // get an instance of the express Router
// test route to make sure everything is working (accessed at GET http://localhost:8080/api)
router.get('/', function(request, response) {
response.json({ message: 'hooray! welcome to our api!' });
});
// more routes for our API will happen here
// REGISTER OUR ROUTES
// all of our routes will be prefixed with /api/v1
app.use('/api/v1/', router);
// START THE SERVER
app.listen(port);
console.log('Magic happens on port ' + port);
// more routes for our API will happen here
// on routes that end in /users
// ----------------------------------------------------
router.route('/users')
// create a user (accessed at POST http://localhost:8080/api/v1/users)
.post(function(request, response) {
var user = new User(); // create a new instance of the User model
user.name = request.body.name; // set the user's name (comes from the request)
user.email = request.body.email; // set the users's email property
user.password = request.body.password; //set the user's password property
// save the user and check for errors
user.save(function(error) {
if (error)
response.send(error);
response.json({ message: 'User created!' });
});
})
// get all the users (accessed at GET http://localhost:8080/api/v1/users)
.get(function (request, response) {
User.find(function (error, users) {
if (error) response.send(error);
response.json(users);
});
});
// on routes that end in /users/:user_id
// ----------------------------------------------------
router.route('/users/:user_id')
// get the user with that id (accessed at GET http://localhost:8080/api/users/:user_id)
.get(function (request, response) {
User.findById(request.params.user_id, function (error, user) {
if (error) response.send(error);
response.json(user);
});
})
// update the user with this id (accessed at PUT http://localhost:8080/api/users/:user_id)
.put(function (request, response) {
// use our user model to find the user we want
User.findById(request.params.user_id, function(error, user) {
if (error) response.send(error);
// update the user info
user.name = request.body.name;
user.email = request.body.email;
user.password = request.body.password;
// save the user
user.save(function(error) {
if (error) response.send(error);
response.json({ message: 'User updated!' });
});
});
})
// delete the user with this id (accessed at DELETE http://localhost:8080/api/users/:user_id)
.delete(function (request, response) {
User.remove({
_id: request.params.user_id
}, function(error, user) {
if (error) res.send(err);
response.json({ message: 'Successfully deleted' });
});
});
这是我的应用程序适配器（在Ember端）：
import DS from 'ember-data';
export default DS.RESTAdapter.extend({
host: 'http://localhost:8080',
namespace: 'api/v1'
});
这是我的序列化程序（在Ember方面）：
import JSONAPISerializer from 'ember-data/serializers/json-api';
import DS from 'ember-data';
export default JSONAPISerializer.extend({
primaryKey: '_id'
});
export default DS.JSONSerializer;
这是我的模型（在Ember方面）：
import Model from 'ember-data/model';
import attr from 'ember-data/attr';
export default Model.extend({
name: attr('string'),
email: attr('string'),
password: attr('string')
});
这是我的users.js路线（在Ember方面）：
import Ember from 'ember';
export default Ember.Route.extend({
model() {
return this.store.findAll('user');
},
actions: {
createUser(newName, newEmail, newPassword) {
this.store.createRecord('user', {
name: newName,
email: newEmail,
password: newPassword
}).save();
},
updateUser(user) {
user.save();
},
deleteUser(user) {
user.destroyRecord();
}
}
});
答案 0 :(得分：0)
从您发布的代码中，您的Application适配器被定义为RESTAdapter，您的序列化器被定义为JSONAPISerializer。 Ember将期望在jsonapi ORG站点上定义JSON API格式
要解决你可以做两件事。使用此库以节点输出具有数据ID和属性格式的JSON api格式，例如：https://github.com/SeyZ/jsonapi-serializer或者只是确保为您的资源使用REST序列化程序和适配器。
尝试像这样定义应用程序序列化程序
import DS from 'ember-data';
export default DS.RESTSerializer.extend({
primaryKey: '_id',
serializeId: function(id) {
return id.toString();
}
});
确保JSON输出包含以下内容：
{
users: [
{"_id": "13ac3f0d4e29d794d9f62898","name":"", "email": "" },
{"_id": "13ac3f0d4e29d794d9f62899","name":"", "email": "" }
]
}
另一个小问题是服务器端的API端点创建，删除或更新用户返回消息而不是用户资源
user.save(function(error) {
if (error) response.send(error);
response.json({ message: 'User updated!' });
});
您应该始终返回更新的资源，在这种情况下，您需要像在GET / users / ID路由中那样以正确的状态和错误代码返回用户，例如：
创建用户ember时，您希望返回201 CREATED状态代码和用户资源的json响应。对于DELETE和PATCH / PUT（更新），您需要返回状态代码200.在所有情况下，您需要使用response.json（用户）而不是输出消息。
如果您无法处理请求（例如，在已经创建用户电子邮件时），您应该回复422并返回正确的错误消息。请参阅此处理错误：http://emberjs.com/api/data/classes/DS.Errors.html
希望它有所帮助。