OTP Generator (gen-otp-secure)

Features

• OTP Generation
• User Authentication
• Customizable OTP Settings
• Configurable Length
• Configurable Character Sets (Digits, Lowercase Letters, Uppercase Letters, Special Characters)

Installation

1npm install gen-otp-secure

Usage

Default

1const { generateOTP } = require('gen-otp-secure');
2
3const otp = generateOTP();
4console.log('Generated OTP:', otp); // output : Generated OTP: abX3j9k

Custom OTP Generator (Length Base)

1const otp = generateOTP(8);
2console.log('Generated OTP:', otp); // output : Generated OTP: A4z#J2L9K5

Custom OTP Generator (Length Base, Digits Base, Case Alphabets Wise, specialChars Wise)

1const otp = generateOTP(10, {
2    digits: true,
3    lowerCaseAlphabets: true,
4    upperCaseAlphabets: true,
5    specialChars: true
6});
7console.log('Generated OTP:', otp); // output : Generated OTP: A4z#J2L9K5

Manage ERROR

1try {
2    const otp = generateOTP(6, { digits: false, lowerCaseAlphabets: false });
3    console.log('Generated OTP:', otp);
4} catch (error) {
5    console.error('Error:', error.message);
6}
7// Error: At least one character type (digits, letters, or special chars) must be enabled.

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