JSON Formatter

You are required to build a CLI tool using Node.js that reads a JSON file and prints formatted JSON to the terminal.

The tool should accept a JSON file path from the terminal. If the user does not pass a file path, it should print a friendly error.

Create a file called user.json with this content:

{"name":"Ava","role":"Developer","skills":["JavaScript","Node.js"]}

Create another file called broken.json with this content:

{"name":"Ava","role":"Developer","skills":["JavaScript","Node.js"]

This file is missing the final }. Keep it broken so you can test the error path.

Here are some example commands you can run to test your CLI:

node json-formatter.js user.jsonnode json-formatter.js broken.jsonnode json-formatter.js missing.jsonnode json-formatter.js

On successful execution, the output should look like this:

{  "name": "Ava",  "role": "Developer",  "skills": [    "JavaScript",    "Node.js"  ]}

If the file contains invalid JSON, print a friendly error:

error: invalid JSON in file: broken.json

If the file cannot be read, print this error:

error: could not read file: missing.json

If the user does not pass a file path, print this error:

error: please provide a JSON file path

Errors should go to stderr, and the command should set a non-zero exit code.

The goal of this project is to practice reading files, parsing JSON, handling invalid data, and printing clean output that another command could redirect into a file.

You will need these Node.js APIs:

• process.argv to read the file path from the terminal.

• node:fs/promises to read the file contents.

• JSON.parse() to turn JSON text into a JavaScript value.

• JSON.stringify() to print formatted JSON.

import { readFile } from 'node:fs/promises';const filePath = process.argv[2];function printError(message) {  console.error(`error: ${message}`);  process.exitCode = 1;}function formatJson(text, filePath) {  let value;  try {    value = JSON.parse(text);  } catch {    printError(`invalid JSON in file: ${filePath}`);    return null;  }  return JSON.stringify(value, null, 2);}async function main() {  if (!filePath) {    printError('please provide a JSON file path');    return;  }  let text;  try {    text = await readFile(filePath, 'utf8');  } catch {    printError(`could not read file: ${filePath}`);    return;  }  const formattedJson = formatJson(text, filePath);  if (formattedJson === null) {    return;  }  console.log(formattedJson);}await main();