Bare Password entry

index.mjs

import { ReadStream, WriteStream } from 'bare-tty'
import process from 'bare-process'

async function promptPassword(promptText) {
  const input = new ReadStream(process.stdin.fd);
  const output = new WriteStream(process.stdout.fd);

  input.setRawMode(true); // Enable raw mode to capture input without echoing

  try {
    output.write(promptText); // Display the prompt

    let password = '';
    while (true) {
      const buffer = Buffer.alloc(1);
      const bytesRead = await input.read(buffer, 0, 1); // Read one byte at a time

      if (bytesRead > 0) {
        const char = buffer.toString('utf8');

        if (char === '\r' || char === '\n') { // Enter key
          output.write('\n');
          break;
        } else if (char === '\u0003') { // Ctrl+C
          output.write('\n');
          process.exit(1); // Exit the process
        } else if (char === '\b' || char === '\x7f') { // Backspace
          if (password.length > 0) {
            password = password.slice(0, -1);
            output.write('\b \b'); // Handle terminal backspace visually
          }
        } else {
          password += char; // Append character to password
        }
      }
    }

    return password;
  } finally {
    input.setRawMode(false); // Restore terminal mode
    input.destroy();
  }
}

// Usage example
(async () => {
  try {
    const password = await promptPassword('Enter your password: ');
    console.log('Password entered:', password); // Remove in production
  } catch (err) {
    console.error(err.message);
  }
})();

run with
npm i bare-tty
npm i bare-process
bare index.mjs