node.js - Cannot read 'create' property of undefined -


i following tutorial on building app express, nodejs, sequelize,postgres. after creating controller , routes, route works post route (mean call callback function creating object) fails with:

typeerror: cannot read property 'create' of undefined.

this controller:

let todo = require('../models').todo;  module.exports = {     create(req, res){         return todo         .create({title:req.body.title,})         .then(todo => res.status(201).send(todo))         .catch(error => res.status(400).send(error));     },     list(req, res){         return todo         .all()         .then(todos => res.status(200).send(todos))         .catch(error => res.status(400).send(error));     }, };

and route definition

const todoscontroller = require('../controllers').todos;   module.exports = app => {     app.get('/api', (req, res) =>res.status(200).send({message:"welcome todos api!"}));     app.post('/api/todos', todoscontroller.create);     app.get('/api/todos', todoscontroller.list); };

...and here todo model. @yuri tarabanko

'use strict';    module.exports = (sequelize, datatypes) =>{    const todo = sequelize.define('todo', {      title:{         type:datatypes.string,        allownull: false      },    },     {      classmethods: {        associate: (models) => {          todo.hasmany(models.todoitem,            {            foreignkey:'todoid',            as: 'todoitems',                          });            },        },      }      );    return todo;  };

my controllers/index.js file shown below.

const todos = require('./todos');  module.exports = {      todos,  };

should not

const todoscontroller = require('../controllers').todos;

but

const todoscontroller = require('../controllers');

because create , list functions not in todo in root of module.exports.

create , list functions in "todo.js" file in "controllers" directory.

then should require them as

const todoscontroller = require('../controllers/todo');

unless have controllers/index.js has

modules.exports={todo:require(todo)};

also note file seems called todo, not todos.


Comments

Post a Comment

Popular posts from this blog

Is there a better way to structure post methods in Class Based Views -

i'm using class based views in django , never specify url in ajax calls , omit action parameter in form because know these requests go through post method of class based view. notice view - profile page make many requests depending on user updating on page - post method become convoluted , if/else mess example: def post(self, request, *args, **kwargs): # handle user changing available date if request.post.get('availabledate') != none: self.updateavailabledate(request) return jsonresponse({'result':'success'}) if request.post.get('newprojectname') != none: creative_user = creativeuserprofile.objects.get(id = request.user.id) project = project.create_project(creative_user, request.post['newprojectname']) project.save() return jsonresponse({'projectid': project.id }) if request.post.get('projectimage') != none , request.files['file']: proj...
Read more

performance - Why is XCHG reg, reg a 3 micro-op instruction on modern Intel architectures? -

i'm doing micro-optimization on performance critical part of code , came across sequence of instructions (in at&t syntax): add %rax, %rbx mov %rdx, %rax mov %rbx, %rdx i thought had use case xchg allow me shave instruction , write: add %rbx, %rax xchg %rax, %rdx however, dimay found agner fog's instruction tables , xchg 3 micro-op instruction 2 cycle latency on sandy bridge, ivy bridge, broadwell, haswell , skylake. 3 whole micro-ops , 2 cycles of latency! 3 micro-ops throws off 4-1-1-1 cadence , 2 cycle latency makes worse original in best case since last 2 instructions in original might execute in parallel. now... cpu might breaking instruction micro-ops equivalent to: mov %rax, %tmp mov %rdx, %rax mov %tmp, %rdx where tmp anonymous internal register , suppose last 2 micro-ops run in parallel latency 2 cycles. given register renaming occurs on these micro-architectures, though, doesn't make sense me done way. why wouldn't register renamer ...
Read more

c# - Asp.net web api : redirect unauthorized requst to forbidden page -

im trying redirect unauthorized request forbidden page instead i'm getting forbidden page in response body , how can fix ? here's startup class : app.createperowincontext(storecontext.create); app.createperowincontext<applicationusermanager>(applicationusermanager.create); app.createperowincontext<applicationsigninmanager>(applicationsigninmanager.create); app.usecookieauthentication(new cookieauthenticationoptions { authenticationtype = defaultauthenticationtypes.applicationcookie, expiretimespan = timespan.fromdays(30), }); app.useexternalsignincookie(defaultauthenticationtypes.externalcookie); app.usetwofactorsignincookie(defaultauthenticationtypes.twofactorcookie, timespan.fromminutes(5)); app.usetwofactorrememberbrowsercookie(defaultauthenticationtypes.twofactorrememberbrowsercookie); the method im trying reach : [httpget] [authorize(roles = "admin")] public string getcurrentusername() { return userman...
Read more