我已经被我的ember项目的服务器api难倒了一个星期了。我无法使用模块化的api工作,这让我疯狂。
控制台相关:
mongod,节点服务器,heroku本地(或者ember s)
首先,我试图解决的错误:(转到http://localhost:4500/notes时显示)
TypeError: app.route is not a function
at module.exports (C:\Users\Accurate\Projects\emberjs\accurate2\AccurateEmber2\api\routes\noteRoute.js:21:9)
at Layer.handle [as handle_request] (C:\Users\Accurate\Projects\emberjs\accurate2\AccurateEmber2\api\node_modules\express\lib\router\layer.js:95:5)
at trim_prefix (C:\Users\Accurate\Projects\emberjs\accurate2\AccurateEmber2\api\node_modules\express\lib\router\index.js:317:13)
at C:\Users\Accurate\Projects\emberjs\accurate2\AccurateEmber2\api\node_modules\express\lib\router\index.js:284:7
at Function.process_params (C:\Users\Accurate\Projects\emberjs\accurate2\AccurateEmber2\api\node_modules\express\lib\router\index.js:335:12)
at next (C:\Users\Accurate\Projects\emberjs\accurate2\AccurateEmber2\api\node_modules\express\lib\router\index.js:275:10)
at jsonParser (C:\Users\Accurate\Projects\emberjs\accurate2\AccurateEmber2\api\node_modules\body-parser\lib\types\json.js:109:7)
at Layer.handle [as handle_request] (C:\Users\Accurate\Projects\emberjs\accurate2\AccurateEmber2\api\node_modules\express\lib\router\layer.js:95:5)
at trim_prefix (C:\Users\Accurate\Projects\emberjs\accurate2\AccurateEmber2\api\node_modules\express\lib\router\index.js:317:13)
at C:\Users\Accurate\Projects\emberjs\accurate2\AccurateEmber2\api\node_modules\express\lib\router\index.js:284:7
at Function.process_params (C:\Users\Accurate\Projects\emberjs\accurate2\AccurateEmber2\api\node_modules\express\lib\router\index.js:335:12)
at next (C:\Users\Accurate\Projects\emberjs\accurate2\AccurateEmber2\api\node_modules\express\lib\router\index.js:275:10)
at urlencodedParser (C:\Users\Accurate\Projects\emberjs\accurate2\AccurateEmber2\api\node_modules\body-parser\lib\types\urlencoded.js:91:7)
at Layer.handle [as handle_request] (C:\Users\Accurate\Projects\emberjs\accurate2\AccurateEmber2\api\node_modules\express\lib\router\layer.js:95:5)
at trim_prefix (C:\Users\Accurate\Projects\emberjs\accurate2\AccurateEmber2\api\node_modules\express\lib\router\index.js:317:13)
at C:\Users\Accurate\Projects\emberjs\accurate2\AccurateEmber2\api\node_modules\express\lib\router\index.js:284:7
这是我的文件夹架构:
的 API
- 控制器
- - - - noteController.js
- 模型
- - - - noteModel.js
- -node_modules
- -routes
- - - - noteRoute.js
- -package-lock.json
- 包装.json
- -server.js
的应用
- - 序列发生器
- - - - note.js
的配置
的 DIST
的 node_modules
公开
服务器
等等...
// Allow POST, GET, PUT, DELETE, OPTIONS
app.use(function (req, res, next) {
res.setHeader('Access-Control-Allow-Origin', 'http://localhost:4200');
res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
res.header('Access-Control-Allow-Methods', 'POST, GET, PUT, DELETE, OPTIONS');
next();
});
//DB Vars
var uri = 'mongodb://localhost/Ember2';
// mongoose instance connection url connection
mongoose.Promise = global.Promise;
var options = {
useMongoClient: true
};
mongoose.connect(uri, function (err) {
if (err) {
console.log('ERROR connecting to: ' + uri + '. ' + err);
} else {
console.log('Succeeded connected to: ' + uri);
}
});
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
var note = require('./routes/noteRoute'); //importing route
app.use('/notes', note);
//middleware catch
app.use(function (req, res) {
res.status(404).send({ url: req.originalUrl + ' not found' })
});
app.listen(port);
console.log('RESTful API server started on: ' + port);
我的noteRoute.js :(评论的代码是我尝试过的替代方案,但仍然收到错误。基本上,我无法与我的数据库进行交互。)
'use strict';
/*let router = require('express').Router();
let note = require('../controllers/noteController');
router.post('api/notes', note.create_a_note);
router.get('api/notes', function (req, res){
note.list_all_notes});
module.exports = router;*/
module.exports = function (app) {
let note = require('../controllers/noteController');
let router = require('express').Router();
router.post('api/notes', note.create_a_note);
router.get('api/notes', function (req, res) {
note.list_all_notes
});
// note Routes
/*app.route('/notes')
.get(note.list_all_note)
.post(note.create_a_note);
app.route('/notes/:noteId')
.get(note.read_a_note)
.put(note.update_a_note)
.delete(note.delete_a_note);*/
};
我的noteModel.js:
'use strict'
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
let NoteSchema = new Schema({
title: {
type: String,
required: 'Kindly enter the name of the note'
},
content: {
type: String
},
author: {
type: String
}
});
module.exports = mongoose.model('Notes', NoteSchema);
我的noteController.js:
'use strict';
let mongoose = require('mongoose'),
Note = mongoose.model('Notes');
exports.list_all_notes = function(req, res){
Note.find({}, function(err, note){
if (err)
res.send(err);
res.json(note);
});
};
exports.create_a_note = function(req, res){
let new_note = new Note(req.body);
new_note.save(function (err, note){
if (err)
res.send(err);
res.json(note);
});
};
exports.read_a_note = function(req, res){
Note.findById(req.params.noteId, function(err, note){
if (err)
res.send(err);
res.json(note);
});
};
exports.delete_a_note = function(req, res){
Note.remove({
_id: req.params.noteId
}, function(err, task){
if (err)
res.send(err);
res.json({ message: 'Note successfully deleted.' });
});
};
我的note.js序列化器:
import DS from 'ember-data';
export default DS.RESTSerializer.extend({
/*primaryKey: '_id',
serializeId: function (id) {
return id.toString();
}*/
normalizeResponse(store, primaryModelClass, payload, id, requestType){
payload = {notes: payload};
payload.notes.foreach((note) => {
note.id = note._id;
delete note._id;
});
return this._super(store, primaryModelClass, payload, id, requestType);
}
});
我一直在使用Postman和浏览器的组合来检查API状态 拥有这个模块化的API是必须的,因为应用程序将变得更大。将所有的get,post,put,delete等都放在server.js中会很麻烦。
答案 0 :(得分:1)
noteRoutes.js
应该是这样的:
let router = require('express').Router();
let note = require('../controllers/noteController');
router.post('/api/notes', note.create_a_note);
router.get('/api/notes', note.list_all_notes);
module.exports = router;
如果您使用此(您已有的)将其包含在server.js
中:
var note = require('./routes/noteRoute');
app.use('/notes', note);
这会为您的http://localhost:4500/notes/api/notes
和GET
请求提供POST
的网址。如果这不是您想要的URL,则需要相应地调整路径路径。例如如果您只是想要http://localhost:4500/notes
,请将路径更改为router.get('/', note.list_all_notes);
,并将post()
呼叫更改为相同。
然后,您需要解决控制器的问题。你反复使用这种模式:
if (err)
res.send(err);
res.json(note);
这不起作用,在错误的情况下,它会尝试同时调用res.send
和res.json
,这会失败,因为您只能发送一个响应。
可能还有其他问题,但是当您遇到相关错误时,您需要调试它们。上面的建议应足以让您超越当前的错误。