React Native

React Native Credit Cards Integration Guide

Overview

The Engine SDK delivers the Credit Cards marketplace flow as an embedded component in your app. This page covers installation, prerequisites, the core configuration props (channel, zone, productTypes), a basic usage example, prefilling lead data, client tags, and event handlers.

You'll need the correct channel and zone values for your integration. Ask your Partner Manager to provide these values for Credit Cards.

Before you start, request an API token from your Partner Manager. It authenticates with the Engine API and is required to use the Prefill API. You may want multiple tokens depending on how many entry points your app has into the SDK.

Requirements

• React Native

Install

Install the SDK from npm using your package manager:

• npm install --save @moneylion/react-native-web-wrapper

• yarn add @moneylion/react-native-web-wrapper

Initialize

Import the Engine SDK component into any file where you want to render the Engine flow.

In v2.0+ the entry-point component was renamed from WebWrapper to EngineSDK. The props and behavior are otherwise identical — choose the tab that matches your installed version. All examples on this page are shown for both versions.

v2.0+

import { EngineSDK, ApiModels } from '@moneylion/react-native-web-wrapper';

v1.x

import { WebWrapper, ApiModels } from '@moneylion/react-native-web-wrapper';

Basic Example

v2.0+

<EngineSDK
  channel="your-channel"
  zone="your-zone"
  productTypes={[ApiModels.ProductType.CreditCard]}
  onExit={() => {
    // handle exit / navigation
  }}
  // ...optional event handlers, see Event Handlers
/>

v1.x

<WebWrapper
  channel="your-channel"
  zone="your-zone"
  productTypes={[ApiModels.ProductType.CreditCard]}
  onExit={() => {
    // handle exit / navigation
  }}
  // ...optional event handlers, see Event Handlers
/>

Properties

Prop	Type	Required	Description
channel	string	Yes	Identifies your integration in Engine. Provided by your Partner Manager (e.g. 'direct').
zone	string	Yes	Identifies the placement or distribution surface for the SDK. Provided by your Partner Manager (e.g. 'marketplace').
productTypes	ApiModels.ProductType[]	Yes	Product flow(s) to render. ProductType is imported from the Engine SDK package — use [ApiModels.ProductType.CreditCard] for Credit Cards, which maps to the string value "credit_card".
bearerToken	string	For prefill	API token from your Partner Manager. Required to use the Prefill API. Without it, the standard non-prefilled flow renders.
style	ViewStyle	No	Style applied to the underlying view, e.g. {{ height: '100%' }}.
personalInformation, financialInformation, creditInformation, creditCardInformation	Lead*Information	No	Prefill data. See Prefilling Lead Data.
clientTags	Record<string, string[]>	No	Reporting/attribution tags. See Client Tags.
onExit	OnExitCallback	Yes	Fired when the user exits the flow.
onInitialize, onCreate, onUpdate, onNavigate, onSubmit, onRateTableRender, onOfferClick, onErrorPageView, onErrorPageRetry, onEmbedError, onEmbedErrorRetry	(props) => void	No	Optional tracking hooks. See Event Handlers.

Prefilling Lead Data

Prefill any user data you already have to reduce what the user has to type in-flow. Prefilled data is grouped into typed information objects, each passed as its own prop on the Engine SDK component (e.g. personalInformation, financialInformation, creditInformation, creditCardInformation).

Prefilling requires a bearerToken. Pass only the fields you have — omitted fields are collected from the user in-flow.

Example

v2.0+

<EngineSDK
  channel="your-channel"
  zone="your-zone"
  bearerToken="{your_token}"
  productTypes={[ApiModels.ProductType.CreditCard]}
  personalInformation={{
    firstName: 'Bob',
    lastName: 'Dylan',
    email: '[email protected]',
    dateOfBirth: '1990-01-01', // YYYY-MM-DD
    primaryPhone: '2325624852',
    address1: '1600 Pennsylvania Avenue',
    address2: 'Apt 2',
    city: 'Washington',
    state: 'DC',
    zipcode: '20500',
  }}
  financialInformation={{
    annualIncome: 20000,
  }}
  creditInformation={{
    providedCreditRating: ApiModels.ProvidedCreditRating.Good,
  }}
  creditCardInformation={{
    cardPurposes: [
      ApiModels.CardPurpose.BalanceTransfer,
      ApiModels.CardPurpose.CashBack,
    ],
  }}
  onExit={(evt) => console.log('onExit', evt)}
/>

v1.x

<WebWrapper
  channel="your-channel"
  zone="your-zone"
  bearerToken="{your_token}"
  productTypes={[ApiModels.ProductType.CreditCard]}
  personalInformation={{
    firstName: 'Bob',
    lastName: 'Dylan',
    email: '[email protected]',
    dateOfBirth: '1990-01-01', // YYYY-MM-DD
    primaryPhone: '2325624852',
    address1: '1600 Pennsylvania Avenue',
    address2: 'Apt 2',
    city: 'Washington',
    state: 'DC',
    zipcode: '20500',
  }}
  financialInformation={{
    annualIncome: 20000,
  }}
  creditInformation={{
    providedCreditRating: ApiModels.ProvidedCreditRating.Good,
  }}
  creditCardInformation={{
    cardPurposes: [
      ApiModels.CardPurpose.BalanceTransfer,
      ApiModels.CardPurpose.CashBack,
    ],
  }}
  onExit={(evt) => console.log('onExit', evt)}
/>

Type Definitions

Every prop and field is optional — pass only what you have.

interface LeadPersonalInformation {
  firstName?: string;
  lastName?: string;
  email?: string;
  dateOfBirth?: string; // YYYY-MM-DD
  primaryPhone?: string; // 10 digits, no "+" or "-" chars
  address1?: string;
  address2?: string; // optional apartment / suite
  city?: string;
  state?: string; // 2-letter code, e.g. 'DC'
  zipcode?: string;
}

interface LeadFinancialInformation {
  annualIncome?: number; // raw integer value (e.g. 20000)
}

interface LeadCreditInformation {
  providedCreditRating?: ApiModels.ProvidedCreditRating; // enum below
}

interface LeadCreditCardInformation {
  cardPurposes?: ApiModels.CardPurpose[]; // enum below
}

Enums / Accepted Values

Use a member of the corresponding ApiModels enum (each member maps to the on-the-wire value shown):

enum CardPurpose {
  BalanceTransfer = 'balance_transfer',
  CashBack = 'cash_back',
  EarningRewards = 'earning_rewards',
  ImproveCredit = 'improve_credit',
  LowInterest = 'low_interest',
  NewToCredit = 'new_to_credit',
  Student = 'student',
  TravelIncentives = 'travel_incentives',
}

enum ProvidedCreditRating {
  Excellent = 'excellent',
  Good = 'good',
  Fair = 'fair',
  Poor = 'poor',
  Limited = 'limited',
}

// Access via the ApiModels namespace, e.g. ApiModels.CardPurpose.BalanceTransfer
// state is a 2-letter US state code, e.g. 'CA', 'DC', 'NY'

Do not prefill any fields that are empty or unavailable — omit them so the user is prompted in-flow. Prefilled data must match the type definitions above, and any field backed by an enum must use a valid value. If a value is invalid, that attribute is stripped and the user will have to enter it again manually.

Client Tags

The Engine SDK supports adding your unique Client Tags to track performance of specific campaigns or users. All Client Tag data is attributed to the lead level.

Client Tags are added via the clientTags prop, a map of string keys to lists of string values. We strongly recommend including only one element per list for ease of reporting and attribution — if you want two separate tags, include the second tag under a different key. There is no limit to the number of keys.

v2.0+

<EngineSDK
  channel="your-channel"
  zone="your-zone"
  bearerToken="{your_token}"
  productTypes={[ApiModels.ProductType.CreditCard]}
  personalInformation={{ /* ...any data you don't want to ask for again */ }}
  clientTags={{
    clientId: ['client1'],
    trafficsource: ['email'],
    campaignId: ['campaign1'],
  }}
  // ...optional Event Handlers, see below
/>

v1.x

<WebWrapper
  channel="your-channel"
  zone="your-zone"
  bearerToken="{your_token}"
  productTypes={[ApiModels.ProductType.CreditCard]}
  personalInformation={{ /* ...any data you don't want to ask for again */ }}
  clientTags={{
    clientId: ['client1'],
    trafficsource: ['email'],
    campaignId: ['campaign1'],
  }}
  // ...optional Event Handlers, see below
/>

Note: Client Tags are only sent as part of a prefill request. You must provide both a bearerToken and prefill data (via the information props such as personalInformation). If no prefill data is supplied, the SDK makes no prefill call and any clientTags you pass are ignored.

Event Handlers

The Engine SDK component exposes optional event callback props that notify your app when key moments occur during the user's journey. Each callback receives an event object containing a timestamp (ISO 8601 UTC) and event-specific fields.

All callbacks are optional. If a callback is not provided, the SDK will still log the event to the debug console in development mode.

v2.0+

<EngineSDK
  channel="your-channel"
  zone="your-zone"
  bearerToken="{your_token}"
  productTypes={[ApiModels.ProductType.CreditCard]}
  onInitialize={(evt) => console.log('onInitialize', evt)}
  onCreate={(evt) => console.log('onCreate', evt.leadUuid)}
  onSubmit={(evt) => console.log('onSubmit', evt.leadUuid)}
  onOfferClick={(evt) => console.log('onOfferClick', evt.offerUuid)}
  onExit={(evt) => console.log('onExit', evt)}
  // ...other callbacks
/>

v1.x

<WebWrapper
  channel="your-channel"
  zone="your-zone"
  bearerToken="{your_token}"
  productTypes={[ApiModels.ProductType.CreditCard]}
  onInitialize={(evt) => console.log('onInitialize', evt)}
  onCreate={(evt) => console.log('onCreate', evt.leadUuid)}
  onSubmit={(evt) => console.log('onSubmit', evt.leadUuid)}
  onOfferClick={(evt) => console.log('onOfferClick', evt.offerUuid)}
  onExit={(evt) => console.log('onExit', evt)}
  // ...other callbacks
/>

Available Events

Callback	Trigger
onInitialize	SDK finished loading the embed
onCreate	New lead created
onUpdate	Lead data updated
onNavigate	Page navigation within the flow
onSubmit	Lead form submitted
onRateTableRender	Rate table displayed with offers
onOfferClick	User clicked an offer
onErrorPageView	Error page displayed in the flow
onErrorPageRetry	User retried from the error page
onExit	User exited the SDK
onEmbedError	Web embed failed to load
onEmbedErrorRetry	User retried after embed failure

For Credit Cards, onRateTableRender populates creditCardOffers, and onOfferClick includes card-specific fields such as financialInstitutionBrandName, cardName, isITA, and cardNetwork. Every event includes a timestamp (ISO 8601 UTC).

Changelog

View the full React Native Credit Cards SDK changelog

2.0.1 (2026-08-18)

• Fixed external browser navigation to properly open links outside the app

2.0.0 (2026-08-4)

• Renamed the WebWrapper entry point to EngineSDK. Update existing imports and usage to use EngineSDK.

1.1.0 (2026-07-28)

• Upgraded build tooling to support latest React Native features and improvements

1.0.0 (2026-07-14)

• Integrated OpenAPI specifications for improved API type safety and reliability

• Added embed URL resolution to properly handle partner page prefill URL

• Added leads prefill endpoint integration

• Added error view handling

0.1.0 (2026-04-21)

• Improved type definitions

0.0.4 (11 Feb 2026)

• Initial release of the web wrapper SDK — a lightweight WebView-based wrapper for embedding web-based SDK flows in React Native apps

• Accepts channel, zone, and exp as input props

• Includes a Shimmer loading component shown while the WebView loads

• Replaced URL constructor with string/regex-based URL parsing for broader compatibility across Android versions and JS engines

• Peer dependencies for react and react-native are now explicitly declared