express

问题 This is the question mostly asked by the beginners, as I had this question when I was starting out How to set port for express without needing to hardcode or even choose port yourself? This is the question I had when I was starting out in node and express (I am still a beginner, have lots of things to learn). Things I wanted know other than that included, What is difference between using app.set('port', portNum) and directly using port number in app.listen(portNum) ? 回答1: How to set port for

问题 This is the question mostly asked by the beginners, as I had this question when I was starting out How to set port for express without needing to hardcode or even choose port yourself? This is the question I had when I was starting out in node and express (I am still a beginner, have lots of things to learn). Things I wanted know other than that included, What is difference between using app.set('port', portNum) and directly using port number in app.listen(portNum) ? 回答1: How to set port for

问题 I want to update a array value but i am not sure about the proper method to do it ,so for i tried following method but didnt worked for me. My model, The children field in my model childrens: { type: Array, default: '' } My query, Employeehierarchy.update({ _id: employeeparent._id} ,{ $set: {"$push": { "childrens": employee._id }} }) .exec(function (err, managerparent) {}); Can anyone please provide me help.Thanks. 回答1: You can't use both $set and $push in the same update expression as nested

问题 I want to update a array value but i am not sure about the proper method to do it ,so for i tried following method but didnt worked for me. My model, The children field in my model childrens: { type: Array, default: '' } My query, Employeehierarchy.update({ _id: employeeparent._id} ,{ $set: {"$push": { "childrens": employee._id }} }) .exec(function (err, managerparent) {}); Can anyone please provide me help.Thanks. 回答1: You can't use both $set and $push in the same update expression as nested

问题 ExpressJS middleware req , res , next have hooks like .on and .pipe . But I'm looking for hooks for the app.get and app.post methods. 回答1: app.use() and middleware can be used for " before " and a combination of the 'close' and 'finish' events can be used for " after ." app.use(function (req, res, next) { function afterResponse() { res.removeListener('finish', afterResponse); res.removeListener('close', afterResponse); // action after response } res.on('finish', afterResponse); res.on('close'

问题 ExpressJS middleware req , res , next have hooks like .on and .pipe . But I'm looking for hooks for the app.get and app.post methods. 回答1: app.use() and middleware can be used for " before " and a combination of the 'close' and 'finish' events can be used for " after ." app.use(function (req, res, next) { function afterResponse() { res.removeListener('finish', afterResponse); res.removeListener('close', afterResponse); // action after response } res.on('finish', afterResponse); res.on('close'

问题 I'm looking to create static text files based upon the content of a supplied object, which can then be downloaded by the user. Here's what I was planning on doing: When the user hits 'export' the application calls a Meteor.method() which, in turn, parses and writes the file to the public directory using typical Node methods. Once the file is created, in the callback from Meteor.method() I provide a link to the generated file. For example, 'public/userId/file.txt'. The user can then choose to

问题 How can I access raw body of request object given to me by expressjs? var express = require('./node_modules/express'); var app = express.createServer(); app.post('/', function(req, res) { console.log(req.body); //says 'undefined' }); app.listen(80); 回答1: Default express does not buffer data unless you add middleware to do so. The simple solution is to follow the example in @Stewe's answer below, which would just concatenate all of the data yourself. e.g. var concat = require('concat-stream');

问题 I'm not very good with regular expressions, so I want to make sure I'm doing this correctly. Let's say I have two very similar routes, /discussion/:slug/ and /page/:slug/ . I want to create a route that matches both these pages. app.get('/[discussion|page]/:slug', function(req, res, next) { ...enter code here... }) Is this the correct way to do it? Right now I'm just creating two separate routes. someFunction = function(req, res, next) {..} app.get('/discussion/:slug', someFunction) app.get('

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 5 months ago . From what I have seen so far, nodejs apps get deployed either by creating a completely static bundle (e.g. angular), or by pulling the source from the repo and running npm install and npm start (usually seen when express/mongo are used). However, I am developing an express/mongo