How can I read a JSON file into server memory using Node.js?

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3

For a non-blocking solution, use fs.readFile(), which allows Node.js to handle other operations while the JSON file is being read:

const fs = require('fs');

fs.readFile('data.json', 'utf8', (err, data) => {
    if (err) {
        console.error('Error reading file:', err);
        return;
    }
    const jsonData = JSON.parse(data);
    console.log(jsonData);
});

This is the recommended approach for performance if you’re running a server since it prevents blocking the event loop.