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index.js
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index.js
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const fs = require('fs');
const http = require('http');
const url = require('url');
const slugify = require('slugify');
const replaceTemplate = require('./modules/replaceTemplate');
///////////////////////////////////
//FILES
// fs.readFile('./txt/start.txt', 'utf-8', (err,data1) => {
// if(err) return console.log('Error!');
// fs.readFile(`./txt/${data1}.txt`, 'utf-8', (err,data2) => {
// console.log(data2);
// fs.readFile(`./txt/append.txt`, 'utf-8', (err,data3) => {
// console.log(data3);
// fs.writeFile('./txt/final.txt', `${data2}\n ${data3}`,'utf-8', (err) =>{
// console.log('Your file has been written :)');
// });
// });
// });
// });
// console.log('Will read file!');
//////////////////////////////////////////////
//SERVER
const data = fs.readFileSync(`${__dirname}/dev-data/data.json`, 'utf-8');
const tempOverview = fs.readFileSync(
`${__dirname}/templates/template-overview.html`,
'utf-8',
);
const tempProduct = fs.readFileSync(
`${__dirname}/templates/template-product.html`,
'utf-8',
);
const tempCard = fs.readFileSync(
`${__dirname}/templates/template-card.html`,
'utf-8',
);
const dataObj = JSON.parse(data);
const slugs = dataObj.map((element) =>
slugify(element.productName, { lower: true }),
);
const server = http.createServer((req, res) => {
const { query, pathname } = url.parse(req.url, true); //this javascript es6 standard parses the url and extracts the query and pathname objects
//Overview page
if (Object.is(pathname, '/') || Object.is(pathname, 'overview')) {
res.writeHead(200, { 'Content-type': 'text/html' });
const cardsHtml = dataObj
.map((val, i) => replaceTemplate(tempCard, val, slugs[i]))
.join('');
//use regex function defined to replace the placeholders in Cardshtml template.
const output = tempOverview.replace(/{%PRODUCTS_CARDS%}/g, cardsHtml); //insert the cardshtml string into the placeholder in the overview template.
res.end(output);
//Product page
} else if (pathname === '/product') {
res.writeHead(200, { 'Content-type': 'text/html' });
const slug = query.id; //access the id property of the query object and retrieve the json object at the position.
const id = slugs.findIndex((currSlug) => currSlug === slug); //retrieve the id of the slug by comparing query with the slug object
const output = replaceTemplate(tempProduct, dataObj[id]);
res.end(output);
//API
} else if (pathname === '/api') {
res.writeHead(200, { 'Content-type': 'application/json' });
res.end(data);
}
//NON-CATCHED PATHS
else {
res.writeHead(404, {
'Content-type': 'text/html',
'my-own-header': 'hello-world',
});
res.end('<h1>Page not found!</h1>');
}
});
//start the server and begin to listen for connections
server.listen(8000, '127.0.0.1', () => {
console.log('Listening to requests on port 8000');
});