How to Activate WhatsApp Gateway for Login with Phone Number

In today’s fast-paced digital world, secure and convenient login methods are essential for both businesses and users. One of the most popular methods is phone number-based login. This article will guide you on how to integrate WhatsApp as a gateway for logging in using a phone number, ensuring seamless authentication and improved user experience.

What is Phone Number Login?

Phone number login is a method of authentication that requires users to verify their identity through their mobile numbers. Instead of using traditional username-password combinations, this method sends a one-time password (OTP) to the user’s phone, making it more secure and user-friendly. WhatsApp, being one of the most widely used messaging platforms, is an excellent choice for implementing this feature.

Why Use WhatsApp for Phone Number Login?

WhatsApp is known for its vast user base and high engagement rate, making it an ideal choice for businesses looking to improve their login systems. By using WhatsApp as a gateway for phone number authentication, you can benefit from:

• Instant communication: WhatsApp messages are delivered instantly, ensuring quick OTP verification.
• Enhanced security: WhatsApp’s end-to-end encryption ensures that your login process is secure.
• Familiarity: Most users are already familiar with WhatsApp, making it a more comfortable authentication method.

How to Find and Set the Necessary Fields for Sending OTP via WhatsApp API

To send OTP (One-Time Password) messages to users via WhatsApp, you need to set specific fields in the WhatsApp Business API. These fields determine how your message will be sent correctly. In this article, we’ll show you how to find these fields and use them to send OTP messages via WhatsApp.

1. messaging_product: This field should be set to whatsapp

How to find it?
The messaging_product field is required to specify that the message will be sent through WhatsApp. You should set this field to whatsapp.

To find this field:

1. Go to Facebook for Developers.
2. Navigate to WhatsApp Business API.
3. In the Send Message API section, you will find this field and set its value to whatsapp.

Example code:

"messaging_product": "whatsapp"

2. to: The recipient’s phone number in international format

How to find it?

The to field is used to enter the recipient’s phone number. For sending OTP messages, the phone number must be in international format. For example, for Iranian users, the number should start with +98.

To find this field:

1. Go to the WhatsApp Business API console.
2. In the Send Message API section, find the to field.
3. Enter the recipient’s phone number in international format.

Example code:

"to": "+989123456789"

3. type: The message type (for OTP, it should be text)

How to find it?

The type field specifies the type of the message. For OTP messages, this field should be set to text.

To find this field:

1. Go to the WhatsApp Business API console.
2. In the Send Message API section, find the type field and set its value to text.

Example code:

"type": "text"

4. text: The message content that includes the OTP code

How to find it?

The text field is used to enter the message content. You need to place the OTP code inside this field to be sent to the recipient.

To find this field:

1. Go to the WhatsApp Business API console.
2. In the Send Message API section, find the text field.
3. Enter the message content, which typically includes the OTP code.

Example code:

"text": {
  "body": "Your verification code is: 123456"
}

How to Set Up WhatsApp API for Sending OTP?

To use WhatsApp Business API and send OTP messages, you first need to set up your WhatsApp Business account. This process involves registering at Facebook for Developers and configuring API access. After this, you can easily send OTP messages to users and verify their identity.

Conclusion

By following these steps and filling in the correct fields in the WhatsApp Business API console, you can easily send OTP messages via WhatsApp. These fields are essential for sending verification messages, and this article showed you how to find and set them up correctly. This will ensure that your users have a quick and secure login process.

To activate the WhatsApp gateway and use the required fields for sending OTP messages, you need to purchase the product from the link below:

Purchase Product