express

问题 I'm very new to learning Node and Express, and I'm still trying to wrap my head around the code flow with express. Suppose we have code that looks like this in a session.js: app.post('/session', notLoggedIn, function(req, res) { User.findOne({ username: req.body.username, password: req.body.password }, function (err, user) { if (err) { return next(err); } if (user) { req.session.user = user; res.redirect('/users'); } else { res.redirect('/session/new'); } }); }); Assuming the User is a

问题 I'm very new to learning Node and Express, and I'm still trying to wrap my head around the code flow with express. Suppose we have code that looks like this in a session.js: app.post('/session', notLoggedIn, function(req, res) { User.findOne({ username: req.body.username, password: req.body.password }, function (err, user) { if (err) { return next(err); } if (user) { req.session.user = user; res.redirect('/users'); } else { res.redirect('/session/new'); } }); }); Assuming the User is a

问题 I'm very new to learning Node and Express, and I'm still trying to wrap my head around the code flow with express. Suppose we have code that looks like this in a session.js: app.post('/session', notLoggedIn, function(req, res) { User.findOne({ username: req.body.username, password: req.body.password }, function (err, user) { if (err) { return next(err); } if (user) { req.session.user = user; res.redirect('/users'); } else { res.redirect('/session/new'); } }); }); Assuming the User is a

问题 in the passport [configure authentication] documentation, it has a rather scary-looking function that uses the mysterious function "done.' passport.use(new LocalStrategy( function(username, password, done) { User.findOne({ username: username }, function (err, user) { if (err) { return done(err); } if (!user) { return done(null, false, { message: 'Incorrect username.' }); } if (!user.validPassword(password)) { return done(null, false, { message: 'Incorrect password.' }); } return done(null,

问题 I need to create a web service and I am using Node.js in server. But when I am running in localhost I am getting an error: Error: Most middleware (like bodyParser) is no longer bundled with Express and must be installed separately. Please see https://github.com/senchalabs/connect#middleware. neo4jtest.js var config = require('./config'); var bodyParser = require('body-parser'); var app = express(); var neo4jurl = process.env.NEO4J_URL ; neo4jurl = neo4jurl +'/db/data/'; var query = [ 'START

问题 I need to create a web service and I am using Node.js in server. But when I am running in localhost I am getting an error: Error: Most middleware (like bodyParser) is no longer bundled with Express and must be installed separately. Please see https://github.com/senchalabs/connect#middleware. neo4jtest.js var config = require('./config'); var bodyParser = require('body-parser'); var app = express(); var neo4jurl = process.env.NEO4J_URL ; neo4jurl = neo4jurl +'/db/data/'; var query = [ 'START

问题 I need to create a web service and I am using Node.js in server. But when I am running in localhost I am getting an error: Error: Most middleware (like bodyParser) is no longer bundled with Express and must be installed separately. Please see https://github.com/senchalabs/connect#middleware. neo4jtest.js var config = require('./config'); var bodyParser = require('body-parser'); var app = express(); var neo4jurl = process.env.NEO4J_URL ; neo4jurl = neo4jurl +'/db/data/'; var query = [ 'START

问题 Passport by default allows the same user to login from multiple browsers and have unique sessions created. How can I configure it to destroy the first session when the user tries to create a second session? Currently I'm using the 'Sessions' model to add the username to the record and upon subsequent login check by username if the sessions exists. But this increases traffic to the db. I'm thinking express must be doing it already or made to, keep the 'logged in users' information in memory so

问题 I try to create a class on my node.js / express app. It works in basic js / prototype mode such as : function MyClass() { /* constructor code */ }; MyClass.prototype.myMethod = function() { /* method code */ }; module.exports = MyClass; But I want to do use the class, constructor, extends, ... keywords. I've try that : class MyClass { constructor() { /* constructor code */ } myMethod() { /* method code */ } } But it doesn't work, the error is : class MyClass { ^^^^^ SyntaxError: Unexpected

问题 I try to create a class on my node.js / express app. It works in basic js / prototype mode such as : function MyClass() { /* constructor code */ }; MyClass.prototype.myMethod = function() { /* method code */ }; module.exports = MyClass; But I want to do use the class, constructor, extends, ... keywords. I've try that : class MyClass { constructor() { /* constructor code */ } myMethod() { /* method code */ } } But it doesn't work, the error is : class MyClass { ^^^^^ SyntaxError: Unexpected