Here the user.js file with class and exports
class User {
static async select() {
const selectResult = await usersDAL.listUsers();
return camelizeKeys(selectResult);
}
}
module.exports.User = User;
I want to use in usersApi file
router.get('/',(req, res) =>{
let userList = new User().select();
res.send(userList);
});
error show
(intermediate value).select is not a function
Please help me
※ At first you should use newer Node.js version 6.0 if you can.
you can export objects by module.exports and import by require.
class User {
static async select() {
const selectResult = await usersDAL.listUsers();
return camelizeKeys(selectResult);
}
}
module.exports = User;
const User = require('../model/user') // this path is dummy.
router.get('/', async (req, res) =>{
let userList = await User.select();
res.send(userList);
});
User.select() is a method to be used as async method. You should wrap Promise-block or use async-await statements.
Sorry my English and I don't execute the code above. It mightn't work well.
By using require like so:
const User = require('./user.js').User
The ./user.js path is assuming the user.js file is in the same directory as usersApi.
That being said you probably want to only export the User:
// ... rest of file
module.exports = User;
const User = require('./user.js')
According to your question and class diagram of user.js file
class User {
static async select() {
const selectResult = await usersDAL.listUsers();
return camelizeKeys(selectResult);
}
}
module.exports.User = User;
you want to export and use it in usersApi file. In this way, you can use
const User = require('.user');
router.get('/', async (req, res) =>{
let userList = await User.User.select();
res.send(userList);
});
Because you export User object in user.js file (ex: module.exports.User = User) that's way, you need User.User.select(). Another information you should know that static async method should be call inside async or promise method. For this reason I use await User.User.select()