OTP Authentication

This authentication guide is meant for developers that are NOT using Descope to design login screens and authentication flows. If you’d like to use Descope Flows, Quick Start should be your starting point.

Introduction

A one-time password (OTP) is an automatically generated string sent to the user during the onboarding (sign-up or sign-in) process to authenticate that user. The OTP can be sent to an email address or a mobile phone as a text. A typical method for implementing OTP has two sets of functionality you need to program: user interaction and session verification.

Use Cases

  1. New user signup: The following actions must be completed, first User Sign-Up then User Verification
  2. Existing user signin: The following actions must be completed, first User Sign-In then User Verification
  3. Sign-Up or Sign-In (Signs up a new user or signs in an existing user): The following actions must be completed, first User Sign-Up or Sign-In then User Verification

Install SDK

ReactNextJSWebJSVue.jsHTMLAngular
npm i --save @descope/react-sdk
npm i --save next-auth
npm i --save @descope/web-js-sdk
npm i --save @descope/vue-sdk
<!-- Not applicable for HTML -->
npm i --save @descope/angular-sdk

Import and initialize SDK

ReactNextJSWebJSVue.jsHTMLAngular
import { AuthProvider } from '@descope/react-sdk'
import { Descope, useDescope } from '@descope/react-sdk'

const AppRoot = () => {
	return (
		<AuthProvider
			projectId="__ProjectID__"
			// If the Descope project manages the token response in cookies,
            // a custom domain must be configured
            // (e.g., https://auth.app.example.com)
			// and should be set as the baseUrl property.
			// baseUrl = "https://auth.app.example.com"
		>
			<App />
		</AuthProvider>
	);
};
// app/api/auth/[...nextauth]
import { NextAuthOptions } from "next-auth"
import NextAuth from "next-auth/next";

export const authOptions: NextAuthOptions = {
  providers: [
    {
      id: "descope",
      name: "Descope",
      type: "oauth",
      wellKnown: `https://api.descope.com/${process.env.DESCOPE_PROJECT_ID}/.well-known/openid-configuration`,
      authorization: { params: { scope: "openid email profile" } },
      idToken: true,
      clientId: process.env.DESCOPE_PROJECT_ID,
      clientSecret: process.env.DESCOPE_ACCESS_KEY,
      checks: ["pkce", "state"],
      profile(profile) {
        return {
          id: profile.sub,
          name: profile.name,
          email: profile.email,
          image: profile.picture,
        }
      },
    },
  ]
}

const handler = NextAuth(authOptions)
export { handler as GET, handler as POST }

// app/provider.tsx
'use client'

import { SessionProvider } from "next-auth/react"


export default function NextAuthSessionProvider(
    { children }:
    { children: React.ReactNode }
) {
    return (
        <SessionProvider>
            { children }
        </SessionProvider>
    )
}

// app/layout.tsx
import NextAuthSessionProvider from './provider'


export default function RootLayout({ children }: { children: React.ReactNode }) {
  return (
    <html>
      <body>
        <NextAuthSessionProvider>
          <div>
            {children}
          </div>
        </NextAuthSessionProvider>
      </body>
    </html>
  )
}
import DescopeSdk from '@descope/web-js-sdk';
try {
    //  baseUrl="<URL>" // you can also configure the baseUrl ex: https://auth.company.com - this is useful when you utilize CNAME within your Descope project.
    const descopeSdk = DescopeSdk({ projectId: '__ProjectID__', persistTokens: true, autoRefresh: true });
} catch (error) {
    // handle the error
    console.log("failed to initialize: " + error)
}
import { createApp } from "vue";
import App from "@/App.vue";
import descope, { getSdk } from "@descope/vue-sdk";

const app = createApp(App);
app.use(router);

app.use(descope, {
  projectId: '__Project_ID__',
  baseUrl: "<base url>", // Optional
});

const sdk = getSdk();
sdk?.onSessionTokenChange((newSession) => {
  // here you can implement custom logic when the session is changing
});
<head>
    <script src="https://unpkg.com/@descope/web-js-sdk@x.x.x/dist/index.umd.js"></script>
    <!-- Please replace `x.x.x` with the latest version of the WebJS SDK, which you can get from [here](https://www.npmjs.com/package/@descope/web-js-sdk) -->
</head>
// app.module.ts
import { NgModule, APP_INITIALIZER} from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { DescopeAuthModule, DescopeAuthService, descopeInterceptor } from '@descope/angular-sdk';
import { AppComponent } from './app.component';
import {
	HttpClientModule,
	provideHttpClient,
	withInterceptors
} from '@angular/common/http';
import { zip } from 'rxjs';

export function initializeApp(authService: DescopeAuthService) {
	return () => zip([authService.refreshSession(), authService.refreshUser()]);
}

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    DescopeAuthModule.forRoot({
      projectId: 'YOUR_PROJECT_ID'
    })
  ],
  providers: [
    {
        provide: APP_INITIALIZER,
        useFactory: initializeApp,
        deps: [DescopeAuthService],
        multi: true
      },
      provideHttpClient(withInterceptors([descopeInterceptor]))
  ],
  bootstrap: [AppComponent]
})
export class AppModule { }

User Sign-Up

For registering a new user, your application client should accept user information, including an email or phone number used for verification. In this sample code, the OTP verification will be sent by email to "email@company.com". To change the delivery method to send the OTP verification as a Text Message (SMS), you would change the deliveryMethod to sms within the below example.

Note that signup is not complete without the user verification step below.

ReactWebJSHTML
// Args:
//    user: Optional user object to populate new user information.
const user = { "name": "Joe Person", "phone": "+15555555555", "email": "email@company.com"}
//    loginId: email or phone - becomes the loginId for the user from here on and also used for delivery
const loginId = "email@company.com"
//    deliveryMethod: Delivery method to use to send OTP. Supported values include "email" or "sms"
const deliveryMethod = "email"
//    signUpOptions (SignUpOptions): this allows you to configure behavior during the authentication process.
const signUpOptions = {
      "customClaims": {"claim": "Value1"},
      "templateOptions": {"option": "Value1"}
    }

const descopeSdk = useDescope();
const resp = await descopeSdk.otp.signUp[deliveryMethod](loginId, user, signUpOptions);
if (!resp.ok) {
  console.log("Failed to initialize signup flow")
  console.log("Status Code: " + resp.code)
  console.log("Error Code: " + resp.error.errorCode)
  console.log("Error Description: " + resp.error.errorDescription)
  console.log("Error Message: " + resp.error.errorMessage)
}
else {
  console.log("Successfully initialized signup flow")
}
// Args:
//    user: Optional user object to populate new user information.
const user = { "name": "Joe Person", "phone": "+15555555555", "email": "email@company.com"}
//    loginId: email or phone - becomes the loginId for the user from here on and also used for delivery
const loginId = "email@company.com"
//    deliveryMethod: Delivery method to use to send OTP. Supported values include "email" or "sms"
const deliveryMethod = "email"
//    signUpOptions (SignUpOptions): this allows you to configure behavior during the authentication process.
const signUpOptions = {
      "customClaims": {"claim": "Value1"},
      "templateOptions": {"option": "Value1"}
    }

const resp = await descopeSdk.otp.signUp[deliveryMethod](loginId, user, signUpOptions);
if (!resp.ok) {
  console.log("Failed to initialize signup flow")
  console.log("Status Code: " + resp.code)
  console.log("Error Code: " + resp.error.errorCode)
  console.log("Error Description: " + resp.error.errorDescription)
  console.log("Error Message: " + resp.error.errorMessage)
}
else {
  console.log("Successfully initialized signup flow")
}
<script>
  let descopeSdk = Descope({projectId: '__ProjectID__'"});
  async function otpSignUp(method) {
    // Args:
    //    user: Optional user object to populate new user information.
    const user = {
      "name": document.getElementById("name").value,
      "phone": document.getElementById("phone").value,
      "email": document.getElementById("email").value
    }
    //    loginId: email or phone - becomes the loginId for the user from here on and also used for delivery
    const loginId = document.getElementById("email").value
    //    deliveryMethod: Delivery method to use to send OTP. Supported values include "email" or "sms"
    const deliveryMethod = method
    //    signUpOptions (SignUpOptions): this allows you to configure behavior during the authentication process.
    const signUpOptions = {
          "customClaims": {"claim": "Value1"},
          "templateOptions": {"option": "Value1"}
        }

    const resp = await descopeSdk.otp.signUp[deliveryMethod](loginId, user, signUpOptions);
    if (!resp.ok) {
      window.alert("Failed to initialize signup flow\nStatus Code: " + resp.code
        + "\nError Code: " + resp.error.errorCode + "\nError Description: " + resp.error.errorDescription + "\nError Message: " + resp.error.errorMessage)
    }
    else {
      console.log("Successfully initialized signup flow")
      window.location.replace("./otpVerify?userId=" + encodeURIComponent(loginId) + "&deliveryMethod=" + deliveryMethod)
    }
  }
</script>

User Sign-In

For authenticating a user, your application client should accept the user's identity (typically an email address or phone number). In this sample code, the OTP verification will be sent by email to "email@company.com".

Note that signin is not complete without the user verification step below.

ReactWebJSHTML
// Args:
//    loginId: email or phone - becomes the loginId for the user from here on and also used for delivery
const loginId = "email@company.com"
//    deliveryMethod: Delivery method to use to send OTP. Supported values include "email" or "sms"
const deliveryMethod = "email"
//    loginOptions (LoginOptions): this allows you to configure behavior during the authentication process.
const loginOptions = {
      "stepup": false,
      "mfa": false,
      "customClaims": {"claim": "Value1"},
      "templateOptions": {"option": "Value1"}
    }
//    refreshToken (optional): the user's current refresh token in the event of stepup/mfa

const descopeSdk = useDescope();
const resp = await descopeSdk.otp.signIn[deliveryMethod](loginId, loginOptions);
if (!resp.ok) {
  console.log("Failed to initialize signin flow")
  console.log("Status Code: " + resp.code)
  console.log("Error Code: " + resp.error.errorCode)
  console.log("Error Description: " + resp.error.errorDescription)
  console.log("Error Message: " + resp.error.errorMessage)
}
else {
  console.log("Successfully initialized signin flow")
}
// Args:
//    loginId: email or phone - becomes the loginId for the user from here on and also used for delivery
const loginId = "email@company.com"
//    deliveryMethod: Delivery method to use to send OTP. Supported values include "email" or "sms"
const deliveryMethod = "email"
//    loginOptions (LoginOptions): this allows you to configure behavior during the authentication process.
const loginOptions = {
      "stepup": false,
      "mfa": false,
      "customClaims": {"claim": "Value1"},
      "templateOptions": {"option": "Value1"}
    }
//    refreshToken (optional): the user's current refresh token in the event of stepup/mfa

const resp = await descopeSdk.otp.signIn[deliveryMethod](loginId, loginOptions);
if (!resp.ok) {
  console.log("Failed to initialize signin flow")
  console.log("Status Code: " + resp.code)
  console.log("Error Code: " + resp.error.errorCode)
  console.log("Error Description: " + resp.error.errorDescription)
  console.log("Error Message: " + resp.error.errorMessage)
}
else {
  console.log("Successfully initialized signin flow")
}
<script>
  let descopeSdk = Descope({projectId: '__ProjectID__', persistTokens: true, autoRefresh: true });

  async function otpSignIn(method) {
    // Args:
    //    loginId: email or phone for the user
    const loginId = document.getElementById("loginId").value
    //    deliveryMethod: Delivery method to use to send OTP. Supported values include "email" or "sms"
    const deliveryMethod = method
    //    loginOptions (LoginOptions): this allows you to configure behavior during the authentication process.
    const loginOptions = {
          "stepup": false,
          "mfa": false,
          "customClaims": {"claim": "Value1"},
          "templateOptions": {"option": "Value1"}
        }
    //    refreshToken (optional): the user's current refresh token in the event of stepup/mfa

    const resp = await descopeSdk.otp.signIn[deliveryMethod](loginId, loginOptions);
    if (!resp.ok) {
      window.alert("Failed to initialize signin flow\nStatus Code: " + resp.code
        + "\nError Code: " + resp.error.errorCode + "\nError Description: " + resp.error.errorDescription + "\nError Message: " + resp.error.errorMessage)
    }
    else {
      console.log("Successfully initialized signin flow")
      window.location.replace("./otpVerify?userId=" + encodeURIComponent(loginId) + "&deliveryMethod=" + deliveryMethod)
    }
  }
</script>

User Sign-Up or Sign-In

For signing up a new user or signing in an existing user, you can utilize the signUpOrIn functionality. Only user loginId is necessary for this function. In this sample code, the OTP verification will be sent by email to "email@company.com". To change the delivery method to send the OTP verification as a Text Message (SMS), you would change the deliveryMethod to sms within the below example.

Note that signUpOrIn is not complete without the user verification step below.

ReactWebJSHTML
// Args:
//    loginId: email or phone - becomes the loginId for the user from here on and also used for delivery
const loginId = "email@company.com"
//    deliveryMethod: Delivery method to use to send OTP. Supported values include "email" or "sms"
const deliveryMethod = "email"
//    signUpOptions (SignUpOptions): this allows you to configure behavior during the authentication process.
const signUpOptions = {
      "customClaims": {"claim": "Value1"},
      "templateOptions": {"option": "Value1"}
    }

const descopeSdk = useDescope();
const resp = await descopeSdk.otp.signUpOrIn[deliveryMethod](loginId, signUpOptions);
if (!resp.ok) {
  console.log("Failed to initialize signUpOrIn flow")
  console.log("Status Code: " + resp.code)
  console.log("Error Code: " + resp.error.errorCode)
  console.log("Error Description: " + resp.error.errorDescription)
  console.log("Error Message: " + resp.error.errorMessage)
}
else {
  console.log("Successfully initialized signUpOrIn flow")
}
// Args:
//    loginId: email or phone - becomes the loginId for the user from here on and also used for delivery
const loginId = "email@company.com"
//    deliveryMethod: Delivery method to use to send OTP. Supported values include "email" or "sms"
const deliveryMethod = "email"
//    signUpOptions (SignUpOptions): this allows you to configure behavior during the authentication process.
const signUpOptions = {
      "customClaims": {"claim": "Value1"},
      "templateOptions": {"option": "Value1"}
    }

const resp = await descopeSdk.otp.signUpOrIn[deliveryMethod](loginId, signUpOptions);
if (!resp.ok) {
  console.log("Failed to initialize signUpOrIn flow")
  console.log("Status Code: " + resp.code)
  console.log("Error Code: " + resp.error.errorCode)
  console.log("Error Description: " + resp.error.errorDescription)
  console.log("Error Message: " + resp.error.errorMessage)
}
else {
  console.log("Successfully initialized signUpOrIn flow")
}
<script>
  let descopeSdk = Descope({projectId: '__ProjectID__', persistTokens: true, autoRefresh: true });

  async function otpSignUpOrIn(method) {
    // Args:
    //    loginId: email or phone - becomes the loginId for the user from here on and also used for delivery
    const loginId = document.getElementById("email").value
    //    deliveryMethod: Delivery method to use to send OTP. Supported values include "email" or "sms"
    const deliveryMethod = method
    //    signUpOptions (SignUpOptions): this allows you to configure behavior during the authentication process.
    const signUpOptions = {
          "customClaims": {"claim": "Value1"},
          "templateOptions": {"option": "Value1"}
        }

    const resp = await descopeSdk.otp.signUpOrIn[deliveryMethod](loginId, signUpOptions);
    if (!resp.ok) {
      window.alert("Failed to initialize signup or in flow\nStatus Code: " + resp.code
        + "\nError Code: " + resp.error.errorCode + "\nError Description: " + resp.error.errorDescription + "\nError Message: " + resp.error.errorMessage)
    }
    else {
      console.log("Successfully initialized signup or in flow")
      window.location.replace("./otpVerify?userId=" + encodeURIComponent(loginId) + "&deliveryMethod=" + deliveryMethod)
    }
  }
</script>

User Verification

The next step in authenticating the user is to verify the code entered by the user, using OTP verify code function. The function will return all the necessary JWT tokens, claims and user information. You can use the JWT tokens for session validation in your application middleware or app server for every route needs an authenticated user.
ReactWebJSHTML
// Args:
//   loginId (str): The loginId of the user being validated
const loginId = "email@company.com"
//   code (str): The authorization code enter by the end user during signup/signin
const code = "xxxxxx"
//    deliveryMethod: Delivery method to use to send OTP. Supported values include "email" or "sms"
const deliveryMethod = "email"

const descopeSdk = useDescope();
const resp = await descopeSdk.otp.verify[deliveryMethod](loginId, code);
if (!resp.ok) {
  console.log("Failed to verify OTP code")
  console.log("Status Code: " + resp.code)
  console.log("Error Code: " + resp.error.errorCode)
  console.log("Error Description: " + resp.error.errorDescription)
  console.log("Error Message: " + resp.error.errorMessage)
}
else {
  console.log("Successfully verified OTP ")
  console.log(resp.data)
}
// Args:
//   loginId (str): The loginId of the user being validated
const loginId = "email@company.com"
//   code (str): The authorization code enter by the end user during signup/signin
const code = "xxxxxx"
//    deliveryMethod: Delivery method to use to send OTP. Supported values include "email" or "sms"
const deliveryMethod = "email"

const resp = await descopeSdk.otp.verify[deliveryMethod](loginId, code);
if (!resp.ok) {
  console.log("Failed to verify OTP code")
  console.log("Status Code: " + resp.code)
  console.log("Error Code: " + resp.error.errorCode)
  console.log("Error Description: " + resp.error.errorDescription)
  console.log("Error Message: " + resp.error.errorMessage)
}
else {
  console.log("Successfully verified OTP ")
  console.log(resp.data)
}
<script>
  let descopeSdk = Descope({projectId: '__ProjectID__', persistTokens: true, autoRefresh: true });


  async function otpVerify() {
    // Args:
    //   loginId (str): The loginId of the user being validated
    const loginId = userId
    //   code (str): The authorization code enter by the end user during signup/signin
    const code = document.getElementById("otpCode").value
    //    deliveryMethod: Delivery method to use to send OTP. Supported values include "email" or "sms"
    const deliveryMethod = method

    const resp = await descopeSdk.otp.verify[deliveryMethod](loginId, code);
    if (!resp.ok) {
        window.alert("Failed to verify OTP code\nStatus Code: " + resp.code
            + "\nError Code: " + resp.error.errorCode + "\nError Description: " + resp.error.errorDescription + "\nError Message: " + resp.error.errorMessage)
    }
    else {
        console.log("Successfully verified OTP ")
        console.log(resp.data.sessionJwt)
        window.location.replace("../loggedIn?userId=" + encodeURIComponent(loginId) + "&sessionJwt=" + resp.data.sessionJwt)
    }
  }
</script>

Update Email

This function allows you to update the user's email address via email. This requires a valid refresh token. Once the user has received the OTP Code, you will need to host a page to verify the OTP code using the OTP Verify Function.

ReactWebJSHTML
// Args:
//   loginId (str): The loginId of the user being updated
const loginId = "email@company.com"
//   email (str): The new email address. If an email address already exists for this end user, it will be overwritten
const email = "newEmail@company.com"
//   refreshToken (str): The session's refresh token (used for verification)
const refreshToken = "xxxxx"
//    updateOptions (UpdateOptions): this allows you to configure behavior during the authentication process.
const updateOptions = {
      "addToLoginIDs": true,
      "onMergeUseExisting": true,
      "templateOptions": {"option": "Value1"}
    }

const descopeSdk = useDescope();
const resp = await descopeSdk.otp.update.email(loginId, email, refreshToken, updateOptions);
if (!resp.ok) {
  console.log("Failed to start OTP email update")
  console.log("Status Code: " + resp.code)
  console.log("Error Code: " + resp.error.errorCode)
  console.log("Error Description: " + resp.error.errorDescription)
  console.log("Error Message: " + resp.error.errorMessage)
}
else {
  console.log("Successfully started OTP email update")
  console.log(resp.data)
}
// Args:
//   loginId (str): The loginId of the user being updated
const loginId = "email@company.com"
//   email (str): The new email address. If an email address already exists for this end user, it will be overwritten
const email = "newEmail@company.com"
//   refreshToken (str): The session's refresh token (used for verification)
const refreshToken = "xxxxx"
//    updateOptions (UpdateOptions): this allows you to configure behavior during the authentication process.
const updateOptions = {
      "addToLoginIDs": true,
      "onMergeUseExisting": true,
      "templateOptions": {"option": "Value1"}
    }

const resp = await descopeSdk.otp.update.email(loginId, email, refreshToken, updateOptions);
if (!resp.ok) {
  console.log("Failed to start OTP email update")
  console.log("Status Code: " + resp.code)
  console.log("Error Code: " + resp.error.errorCode)
  console.log("Error Description: " + resp.error.errorDescription)
  console.log("Error Message: " + resp.error.errorMessage)
}
else {
  console.log("Successfully started OTP email update")
  console.log(resp.data)
}
<script>
  let descopeSdk = Descope({projectId: '__ProjectID__', persistTokens: true, autoRefresh: true });


  async function otpUpdateEmail() {
    // Args:
    //   loginId (str): The loginId of the user being updated
    const loginId = "email@company.com"
    //   email (str): The new email address. If an email address already exists for this end user, it will be overwritten
    const email = "newEmail@company.com"
    //   refreshToken (str): The session's refresh token (used for verification)
    const refreshToken = "xxxxx"
    //    updateOptions (UpdateOptions): this allows you to configure behavior during the authentication process.
    const updateOptions = {
          "addToLoginIDs": true,
          "onMergeUseExisting": true,
          "templateOptions": {"option": "Value1"}
        }

    const resp = await descopeSdk.otp.update.email(loginId, email, refreshToken, updateOptions);
    if (!resp.ok) {
        window.alert("Failed to start OTP email update\nStatus Code: " + resp.code
            + "\nError Code: " + resp.error.errorCode + "\nError Description: " + resp.error.errorDescription + "\nError Message: " + resp.error.errorMessage)
    }
    else {
        console.log("Successfully started OTP email update")
        console.log(resp.data.sessionJwt)
        window.location.replace("../otpVerify?userId=" + encodeURIComponent(loginId) + "&sessionJwt=" + resp.data.sessionJwt)
    }
  }
</script>

Update Phone

This function allows you to update the user's phone number address via SMS. This requires a valid refresh token. Once the user has received the OTP Code, you will need to host a page to verify the OTP code using the OTP Verify Function.

ReactWebJSHTML
// Args:
//   deliveryMethod: Delivery method to use to send OTP.
const deliveryMethod = "sms"
//   loginId (str): The loginId of the user being updated
const loginId = "phone@company.com"
//   phone (str): The new phone number. If a phone number already exists for this end user, it will be overwritten
const phone = "+12223334455"
//   refreshToken (str): The session's refresh token (used for verification)
const refreshToken = "xxxxx"
//    updateOptions (UpdateOptions): this allows you to configure behavior during the authentication process.
const updateOptions = {
      "addToLoginIDs": true,
      "onMergeUseExisting": true,
      "templateOptions": {"option": "Value1"}
    }

const descopeSdk = useDescope();
const resp = await useDescope.otp.update.phone(deliveryMethod, loginId, phone, refreshToken, updateOptions);
if (!resp.ok) {
  console.log("Failed to start OTP phone update")
  console.log("Status Code: " + resp.code)
  console.log("Error Code: " + resp.error.errorCode)
  console.log("Error Description: " + resp.error.errorDescription)
  console.log("Error Message: " + resp.error.errorMessage)
}
else {
  console.log("Successfully started OTP phone update")
  console.log(resp.data)
}
// Args:
//   deliveryMethod: Delivery method to use to send OTP.
const deliveryMethod = "sms"
//   loginId (str): The loginId of the user being updated
const loginId = "phone@company.com"
//   phone (str): The new phone number. If a phone number already exists for this end user, it will be overwritten
const phone = "+12223334455"
//   refreshToken (str): The session's refresh token (used for verification)
const refreshToken = "xxxxx"
//    updateOptions (UpdateOptions): this allows you to configure behavior during the authentication process.
const updateOptions = {
      "addToLoginIDs": true,
      "onMergeUseExisting": true,
      "templateOptions": {"option": "Value1"}
    }

const resp = await useDescope.otp.update.phone(deliveryMethod, loginId, phone, refreshToken, updateOptions);
if (!resp.ok) {
  console.log("Failed to start OTP phone update")
  console.log("Status Code: " + resp.code)
  console.log("Error Code: " + resp.error.errorCode)
  console.log("Error Description: " + resp.error.errorDescription)
  console.log("Error Message: " + resp.error.errorMessage)
}
else {
  console.log("Successfully started OTP phone update")
  console.log(resp.data)
}
<script>
  let descopeSdk = Descope({projectId: '__ProjectID__', persistTokens: true, autoRefresh: true });


  async function otpUpdateEmail() {
    // Args:
    //   deliveryMethod: Delivery method to use to send OTP.
    const deliveryMethod = "sms"
    //   loginId (str): The loginId of the user being updated
    const loginId = "phone@company.com"
    //   phone (str): The new phone number. If a phone number already exists for this end user, it will be overwritten
    const phone = "+12223334455"
    //   refreshToken (str): The session's refresh token (used for verification)
    const refreshToken = "xxxxx"
    //    updateOptions (UpdateOptions): this allows you to configure behavior during the authentication process.
    const updateOptions = {
          "addToLoginIDs": true,
          "onMergeUseExisting": true,
          "templateOptions": {"option": "Value1"}
        }

    const resp = await useDescope.otp.update.phone(deliveryMethod, loginId, phone, refreshToken, updateOptions);
    if (!resp.ok) {
        window.alert("Failed to start OTP phone update"\nStatus Code: " + resp.code
            + "\nError Code: " + resp.error.errorCode + "\nError Description: " + resp.error.errorDescription + "\nError Message: " + resp.error.errorMessage)
    }
    else {
        console.log("Successfully started OTP phone update")
        console.log(resp.data.sessionJwt)
        window.location.replace("../otpVerify?userId=" + encodeURIComponent(loginId) + "&sessionJwt=" + resp.data.sessionJwt)
    }
  }
</script>

Session Validation

The final step of completing the authentication with Descope is to validate the user session. Descope provides rich session management capabilities, including configurable session timeouts and logout functions. You can find the details and sample code for client session validation here.




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Checkpoint: Your application is now integrated with Descope. Please test with sign-up or sign-in use case.
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