Express.js Deep API Reference by Azat Mardan

By Azat Mardan

Express.js Deep API Reference is your brief, concise consultant to Express.js APIs. this versatile Node.js internet program framework offers a powerful set of positive factors for construction unmarried, multi-page, and hybrid net applications.

Through six to-the-point chapters, you can find references for configurations, settings, environments, middleware, templating engines (including Consolidate.js), extract parameters, routing, request handlers, reaction, and streams.

Written via Azat Mardan, the writer of Pro Express.js and Practical Node.js, you'll find this brief, concise consultant imperative to your Express.js paintings.

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Js (Apress, 2014). As a result of applying compression, in the Chrome browser Developer Tools console you can see the Content-Encoding: gzip response header, as shown in Figure 2-1. Figure 2-1. org/package/morgan) keeps track of all the requests and other important information depending on the output format specified. ); for example, var logger = require('morgan'); // ... use(logger('common')); or var logger = require('morgan'); // ... use(logger('dev')); or var logger = require('morgan'); // ...

The good response returns status code 200. Both are shown in Figure 2-2. It’s possible to customize the message in the error handlers. Figure 2-2. org/package/errorhandler) can be used for basic error handling. This is especially useful in development and for prototyping. This module doesn’t do anything that you can’t do yourself with custom error-handling middleware. However, it will save you time. For production environments, please consider customizing error handling to your needs. 1 --save We apply it in the server file like this: var errorHandler = require('errorhandler'); // ...

Js. set('view engine', name); Or, with values: var path = require('path') // ... , jade is both an extension and an NMP name). js render EJS or Jade templates. js files. js Usually the file extension is the NPM module name for that template engine. render is called inside of the route request handler. More details on render and other response object methods are provided later in the chapter. js application. js calls need to be installed in the local node_modules folder. json as well, either manually or with npm install name --save.

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