【[Express] Level 5: Route file】的更多相关文章

[Express] Level 5: Route file

Using a Router Instance Let's refactor app.js to use a Router object. Create a new router object and assign it to the router variable. var router = express.Router(); When we are done, our router will be mounted on the /cities path. With this in mind,…

[Express] Level 5: Route Instance -- refactor the code

Route Instance Let's rewrite our cities routes using a Route Instance. Create a new Route Instance for the '/cities' URL path and assign it to thecitiesRoute variable. var citiesRoute = app.route('/cities'); Move the code from our previous app.get() …

[Express] Level 2: Middleware -- 1

Mounting Middleware Given an application instance is set to the app variable, which of the following function calls would you use to mount a middleware called logger ? Answer: app.use(logger); Default Middleware What is the only middleware that's shi…

[Express] Level 4: Body-parser -- Delete

Response Body What would the response body be set to on a DELETE request to /cities/DoesNotExist ? Here's the link to the sendStatus function source code if you need to take a look. Answer: 404 Delete Route Create a Dynamic Route for deleting cities…

[Express] Level 4: Body-parser -- Post

Parser Setup Assume the body-parser middleware is installed. Now, let's use it in our Express application. npm install body-parser Require the body-parser npm module and assign it to a variable calledbodyParser. var bodyParser = require('body-parser'…

[Express] Level 3: Massaging User Data

Flexible Routes Our current route only works when the city name argument matches exactly the properties in the cities object. This is a problem. We need a way to make our code more flexible. Inside our route, call the parseCityName() function passing…

[Express] Level 3: Reading from the URL

City Search We want to create an endpoint that we can use to filter cities. Follow the tasks below to to create this new route. Create a new route for GET request to '/cities'. The second argument should be a callback function which takes request and…

[Express] Level 2: Middleware -- 2

Logging Middleware Help finish the following middleware code in the logger.js file: On the response object, listen to the event that's emitted when the response has been handed off from Express to the underlying Operating System. response.on('finish'…

[Express] Level 1: First Step

Installing Express Let's start building our new Express application by installing Express. Type the command that installs the latest version for the 4.9 branch. npm install express@4.9 The '@' symbol to tell the npm which express version you want to…

Express web框架 upload file

哈哈,敢开源,还是要有两把刷子的啊 今天,看看node.js 的web框架 Express的实际应用 //demo1 upload file <html><head><title>文件上传表单</title></head><body><h3>文件上传:</h3>选择一个文件上传: <br /><form action="/file_upload" method="…