It parses incoming requests with JSON payloads and is based on body-parser. const express require ('express') const app express () Methods express.json ( options) This is a built-in middleware function in Express. The app returned by express() is in fact a JavaScript Function, designed to be. It comes with many built-in features, but also has a gigantic suite of third-party add-ons that developers can use to provide better functionality, increased security, and improved speed. Express 4.18.1 API documentation with instant search, offline support. Always be conscious that code running for one user is blocking code running for every other user.ĭo you have further performance tips for Node.js or Express? I’d be glad to hear them in the comments. The express () function is a top-level function exported by the express module. Express is a framework that runs within Node.js that provides the means for a developer to create and maintain robust servers.Avoid using synchronous blocking calls in everything but application initialization.Where possible, call sequences of blocking operations in parallel rather than in sequence.Increase the maximum number of HTTP sockets from five to a higher number, e.g.Consider using an ID only then fetch user information from a database during the request. User session data is normally stored in memory which can lead to performance issues as usage grows. Use a build tool such as Gulp to minify and concatenate your HTML templates, CSS and JavaScript files.Consider using nginx to serve static content and lighten the load on Node.js and Express.
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