freeCodeCamp/curriculum/challenges/english/06-information-security-and-quality-assurance/advanced-node-and-express/set-up-a-template-engine.english.md

id, title, challengeType, forumTopicId

id	title	challengeType	forumTopicId
5895f700f9fc0f352b528e63	Set up a Template Engine	2	301564

Description

As a reminder, this project is being built upon the following starter project on Glitch, or cloned from GitHub. A template engine enables you to use static template files (such as those written in Pug) in your app. At runtime, the template engine replaces variables in a template file with actual values which can be supplied by your server, and transforms the template into a static HTML file that is then sent to the client. This approach makes it easier to design an HTML page and allows for displaying of variables on the page without needing to make an API call from the client. To set up Pug for use in your project, you will need to add it as a dependency first in your package.json. "pug": "^0.1.0" Now to tell Node/Express to use the templating engine you will have to tell your express app to set 'pug' as the 'view-engine'. app.set('view engine', 'pug') Lastly, you should change your response to the request for the index route to res.render with the path to the view views/pug/index.pug. If all went as planned, you should refresh your apps home page and see a small message saying you're successfully rending the Pug from our Pug file! Submit your page when you think you've got it right.

Instructions

Tests

tests:
  - text: Pug should be a dependency.
    testString: getUserInput => $.get(getUserInput('url')+ '/_api/package.json') .then(data => { var packJson = JSON.parse(data); assert.property(packJson.dependencies, 'pug', 'Your project should list "pug" as a dependency'); }, xhr => { throw new Error(xhr.statusText); })
  - text: View engine should be Pug.
    testString: getUserInput => $.get(getUserInput('url')+ '/_api/server.js') .then(data => { assert.match(data, /('|")view engine('|"),( |)('|")pug('|")/gi, 'Your project should set Pug as a view engine'); }, xhr => { throw new Error(xhr.statusText); })
  - text: Pug should be working.
    testString: getUserInput => $.get(getUserInput('url')+ '/') .then(data => { assert.match(data, /pug-success-message/gi, 'Your projects home page should now be rendered by pug with the projects .pug file unaltered'); }, xhr => { throw new Error(xhr.statusText); })

Challenge Seed

Solution

/**
  Backend challenges don't need solutions, 
  because they would need to be tested against a full working project. 
  Please check our contributing guidelines to learn more.
*/