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Health Checks and Graceful Shutdown

When you deploy a new version of your application, you must replace the previous version. The process manager you’re using will first send a SIGTERMsignal to … See more

Actived: 8 days ago

URL: https://expressjs.com/en/advanced/healthcheck-graceful-shutdown.html

Using Express middleware

WEBUsing middleware. Express is a routing and middleware web framework that has minimal functionality of its own: An Express application is essentially a series of middleware …

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Performance Best Practices Using Express in Production

WEBThis article discusses performance and reliability best practices for Express applications deployed to production. This topic clearly falls into the “devops” world, spanning both …

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Installing Express

WEBInstalling. Assuming you’ve already installed Node.js, create a directory to hold your application, and make that your working directory.. Express 4.x requires Node.js 0.10 or …

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Writing middleware for use in Express apps

WEBNotice the call above to next().Calling this function invokes the next middleware function in the app. The next() function is not a part of the Node.js or Express API, but is the third …

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Express utilities

WEBFunction to invoke as the final step to respond to HTTP request. parseurl. Parse a URL with caching. path-match. Thin wrapper around path-to-regexp to make extracting parameter …

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Express body-parser middleware

WEBbody-parser. Node.js body parsing middleware. Parse incoming request bodies in a middleware before your handlers, available under the req.body property.. Note As …

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Serving static files in Express

WEBTo serve static files such as images, CSS files, and JavaScript files, use the express.static built-in middleware function in Express. The function signature is: express.static(root, …

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Debugging Express

WEBAn application generated by the express command uses the debug module and its debug namespace is scoped to the name of the application. For example, if you generated the …

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Express glossary

WEBIn general, one or more programs that are designed to carry out operations for a specific purpose. In the context of Express, a program that uses the Express API running on the …

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Express error handling

WEBCalls to next() and next(err) indicate that the current handler is complete and in what state.next(err) will skip all remaining handlers in the chain except for those that are set …

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Express cookie-session middleware

WEBCreate a new cookie session middleware with the provided options. This middleware will attach the property session to req, which provides an object representing the loaded …

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Express application generator

WEBThe app structure created by the generator is just one of many ways to structure Express apps. Feel free to use this structure or modify it to best suit your needs.

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Express cors middleware

WEBcors. CORS is a node.js package for providing a Connect / Express middleware that can be used to enable CORS with various options. Follow me (@troygoode) on Twitter! …

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Express session middleware

WEBexpress-oracle-session A session store using native oracle via the node-oracledb module. express-session-cache-manager A store that implements cache-manager, which …

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