express

问题 I'm building a website using Node and Express JS and would like to throttle invalid login attempts. Both to prevent online cracking and to reduce unnecessary database calls. What are some ways in which I can implement this? 回答1: Maybe something like this might help you get started. var failures = {}; function tryToLogin() { var f = failures[remoteIp]; if (f && Date.now() < f.nextTry) { // Throttled. Can't try yet. return res.error(); } // Otherwise do login ... } function onLoginFail() { var

问题 I'm building a website using Node and Express JS and would like to throttle invalid login attempts. Both to prevent online cracking and to reduce unnecessary database calls. What are some ways in which I can implement this? 回答1: Maybe something like this might help you get started. var failures = {}; function tryToLogin() { var f = failures[remoteIp]; if (f && Date.now() < f.nextTry) { // Throttled. Can't try yet. return res.error(); } // Otherwise do login ... } function onLoginFail() { var

问题 I'm building a website using Node and Express JS and would like to throttle invalid login attempts. Both to prevent online cracking and to reduce unnecessary database calls. What are some ways in which I can implement this? 回答1: Maybe something like this might help you get started. var failures = {}; function tryToLogin() { var f = failures[remoteIp]; if (f && Date.now() < f.nextTry) { // Throttled. Can't try yet. return res.error(); } // Otherwise do login ... } function onLoginFail() { var

问题 So, I'd like to know how to create custom events in node.js, and I'm hitting a wall. I'm pretty sure I'm misunderstanding something about how express works and how node.js events work. https://creativespace.nodejitsu.com That's the app. When a user creates a new "activity" (something that will happen many times) they send a POST request. Then within my route, if that POST succeeds I'd like to emit an event, that tells socket.io to create a new namespace for that activity. In my route file:

问题 So, I'd like to know how to create custom events in node.js, and I'm hitting a wall. I'm pretty sure I'm misunderstanding something about how express works and how node.js events work. https://creativespace.nodejitsu.com That's the app. When a user creates a new "activity" (something that will happen many times) they send a POST request. Then within my route, if that POST succeeds I'd like to emit an event, that tells socket.io to create a new namespace for that activity. In my route file:

问题 So, I'd like to know how to create custom events in node.js, and I'm hitting a wall. I'm pretty sure I'm misunderstanding something about how express works and how node.js events work. https://creativespace.nodejitsu.com That's the app. When a user creates a new "activity" (something that will happen many times) they send a POST request. Then within my route, if that POST succeeds I'd like to emit an event, that tells socket.io to create a new namespace for that activity. In my route file:

问题 So, I'd like to know how to create custom events in node.js, and I'm hitting a wall. I'm pretty sure I'm misunderstanding something about how express works and how node.js events work. https://creativespace.nodejitsu.com That's the app. When a user creates a new "activity" (something that will happen many times) they send a POST request. Then within my route, if that POST succeeds I'd like to emit an event, that tells socket.io to create a new namespace for that activity. In my route file:

问题 So, I'd like to know how to create custom events in node.js, and I'm hitting a wall. I'm pretty sure I'm misunderstanding something about how express works and how node.js events work. https://creativespace.nodejitsu.com That's the app. When a user creates a new "activity" (something that will happen many times) they send a POST request. Then within my route, if that POST succeeds I'd like to emit an event, that tells socket.io to create a new namespace for that activity. In my route file:

问题 I use a nodejs express server. Despite allowing the host, I still have an CORS error " No 'Access-Control-Allow-Origin' header is present on the requested resource." but only for the POST endpoint. The "GET" have no issue. Both (GET and POST) endpoint are allowed for my client-browser: My server:(running on http://serverURL) var whitelist = ['http://localhost:4200', 'http://someOtherDeployUrl.com'] var corsOptionsDelegate = function (req, callback) { var corsOptions; if (whitelist.indexOf(req

问题 I use a nodejs express server. Despite allowing the host, I still have an CORS error " No 'Access-Control-Allow-Origin' header is present on the requested resource." but only for the POST endpoint. The "GET" have no issue. Both (GET and POST) endpoint are allowed for my client-browser: My server:(running on http://serverURL) var whitelist = ['http://localhost:4200', 'http://someOtherDeployUrl.com'] var corsOptionsDelegate = function (req, callback) { var corsOptions; if (whitelist.indexOf(req