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Consumer Authentication

/

API reference

/

One-time passcodes (OTP)

/

Via Whatsapp

/

Login or create user

Log in or create User by WhatsApp OTP

POST
https://test.stytch.com/v1/otps/whatsapp/login_or_create

Send a one-time passcode (OTP) to a User's WhatsApp using their phone number. If the phone number is not associated with a User already, a User will be created.

Cost to send SMS OTP

Before configuring SMS or WhatsApp OTPs, please review how Stytch bills the costs of international OTPs and understand how to protect your app against toll fraud.

Next steps

Collect the OTP which was delivered to the User. Call Authenticate OTP using the OTP code along with the phone_id found in the response as the method_id.


Body parameters


phone_number* string

expiration_minutes int

create_user_as_pending boolean

attributes object

locale string

Response fields


status_code int

request_id string

user_id string

phone_id string

user_created boolean
const stytch = require('stytch');

const client = new stytch.Client({
  project_id: 'PROJECT_ID',
  secret: 'SECRET',
});

const params = {
  phone_number: "+12025550162",
};

client.otps.whatsapp.loginOrCreate(params)
  .then(resp => { console.log(resp) })
  .catch(err => { console.log(err) });
RESPONSE
200
​
{
  "status_code": 200,
  "request_id": "request-id-test-b05c992f-ebdc-489d-a754-c7e70ba13141",
  "user_id": "user-test-16d9ba61-97a1-4ba4-9720-b03761dc50c6",
  "phone_id": "phone-number-test-d5a3b680-e8a3-40c0-b815-ab79986666d0",
  "user_created": true
}

Common Error Types

  • invalid_phone_number
  • invalid_phone_number_docs