server.ts

const http = require('http');

const glossary = [
    {
        id: '851112',
        title: 'Lokalise',
        description: 'This is a project name and it should not be translated. You can see this, as it\'s been added to the Glossary.',
        caseSensitive: false,
        translatable: false,
        forbidden: false,
        createdAt: '2021-06-11T15:01:56+02:00',
        createdBy: { 'id': '111884', 'fullName': 'Jane Doe' },
    },
    {
        id: '851113',
        title: 'Mercedes-Benz',
        description: 'It is a German automotive brand.',
        caseSensitive: true,
        translatable: false,
        forbidden: false,
        createdAt: '2021-05-11T15:01:56+02:00',
        createdBy: { 'id': '111884', 'fullName': 'Jane Doe' },
    },
    {
        id: '851114',
        title: 'VAT number',
        description: 'An identifier used in many countries, including the countries of the European Union, for value added tax purposes',
        caseSensitive: true,
        translatable: true,
        forbidden: false,
        createdAt: '2021-05-11T15:01:56+02:00',
        createdBy: { 'id': '111884', 'fullName': 'Jane Doe' },
    },
    {
        id: '851115',
        title: 'Superman',
        description: 'This is a superhero character who first appeared in American comic books published by DC Comics.',
        caseSensitive: true,
        translatable: true,
        forbidden: true,
        createdAt: '2021-04-12T15:01:56+02:00',
        createdBy: { 'id': '111884', 'fullName': 'Jane Doe' },
    },
    {
        id: '851116',
        title: 'Redux',
        description: 'A Predictable State Container for JS Apps',
        caseSensitive: true,
        translatable: false,
        forbidden: false,
        createdAt: '2021-03-12T15:01:56+02:00',
        createdBy: { 'id': '111884', 'fullName': 'Jane Doe' },
    },
    {
        id: '851117',
        title: 'React',
        description: 'A JavaScript library for building user interfaces.',
        caseSensitive: true,
        translatable: false,
        forbidden: false,
        createdAt: '2021-02-12T15:01:56+02:00',
        createdBy: { 'id': '111884', 'fullName': 'Jane Doe' },
    },
    {
        id: '851118',
        title: 'WebKit',
        description: 'A is the web browser engine used by Safari, Mail, App Store, and many other apps on macOS, iOS, and Linux.',
        caseSensitive: true,
        translatable: false,
        forbidden: false,
        createdAt: '2021-01-12T15:01:56+02:00',
        createdBy: { 'id': '111884', 'fullName': 'Jane Doe' },
    },
    {
        id: '851119',
        title: 'Prettier',
        description: 'An opinionated code formatter.',
        caseSensitive: true,
        translatable: false,
        forbidden: false,
        createdAt: '2021-01-12T15:01:56+02:00',
        createdBy: { 'id': '111884', 'fullName': 'Jane Doe' },
    },
    {
        id: '851120',
        title: 'Flexbox',
        description: 'The Flexible Box Module, usually referred to as flexbox, was designed as a one-dimensional layout model, and as a method that could offer space distribution between items in an interface and powerful alignment capabilities.',
        caseSensitive: false,
        translatable: false,
        forbidden: false,
        createdAt: '2021-10-11T15:01:56+02:00',
        createdBy: { 'id': '111884', 'fullName': 'Jane Doe' },
    },
];

const searchGlossaryItem = (searchPhrase) => ({ title, description }) => {
    const lowercaseTitle = title.toLocaleLowerCase();
    const lowercaseDescription = description.toLocaleLowerCase();
    const searchWords = searchPhrase.toLocaleLowerCase().split(' ');

    const isInTitle = !!searchWords.filter((word) => lowercaseTitle.includes(word)).length;
    const isInDescription = !!searchWords.filter((word) => lowercaseDescription.includes(word)).length;

    return isInTitle || isInDescription;
}

const headers = {
    'Access-Control-Allow-Origin': '*',
    'Access-Control-Allow-Methods': 'POST, GET',
};

const port = 5000;

const server = http.createServer(async (req, res) => {
    const location = new URL(req.url, `http://localhost:${port}`);

    if (req.method === 'GET' && '/api/glossary' === location.pathname.replace(/\/+$/, '')) {
        const searchPhrase = location.searchParams.get('search') ?? '';

        const searchGlossaryItemWithPhrase = searchGlossaryItem(searchPhrase);

        const response = glossary.filter(searchGlossaryItemWithPhrase);

        res.writeHead(200, { ...headers, 'Content-Type': 'application/json' });
        res.end(JSON.stringify(response));
    } else {
        res.writeHead(404, { ...headers, 'Content-Type': 'application/json' });
        res.end(JSON.stringify({ message: 'Route not found!' }));
    }
});

server.listen(port, () => console.log(`Server listening on port ${port}.`));