React ⚛
Our CardScanView react component makes it easy to add insurance card scanning and eligibility verification to any web application in 5 minutes or less.
Installation
$ npm i @cardscan.ai/insurance-cardscan-react
$ yarn add @cardscan.ai/insurance-cardscan-reactUsage
Import the library widget and model into your project files:
import { CardScanView, CardScanModel } from "@cardscan.ai/insurance-cardscan-react";You can optionally add the API client for more custom applications.
import { CardScanApi } from "@cardscan.ai/cardscan-client";Basic Example
import React from "react";
import { render } from "react-dom";
import { CardScanView, CardScanModel } from "@cardscan.ai/insurance-cardscan-react";
function onSuccess(card: any) {
console.log("New Card: ", card);
}
function onError(error) {
console.error('Error occurred: ', error);
}
// See Authentication on where to get this sessionToken.
const sessionToken = 'JWT_TOKEN'
// Initializes and warms the model. See CardScanModel for more info.
useEffect(() => {
CardScanModel.warm();
}, []);
// Render CardScanView
function App() {
return (
<div className="App">
<div className="CardScanContainer">
<CardScanView
live={false}
sessionToken={sessionToken}
onSuccess={onSuccess}
onError={onError}
/>
</div>
</div>
);
}
const rootElement = document.getElementById('root');
render(<App />, rootElement);
Compatibility
Node Versions: 14, 16, 18
React Versions: >=17.0.2, 18.2.0+
Webpack Versions: 4.x, 5.x
Babel Versions: 6.x, 7.x
Peer Dependencies
React: >=17.0.2
React-DOM: >=17.0.2
Configuration
Available Props
<CardScanView
// Required
live={false}
sessionToken={token}
onSuccess={onSuccess}
// Recommneded
onCancel={onCancel}
onError={onError}
onProgress={onProgress}
// Eligibility
eligibility={eligibility}
onEligibilitySuccess={eligibilitySuccess}
onEligibilityError={eligibilityError}
// Camera Options
cameraOptions={cameraOptions}
// Optional
backsideSupport={scanBackside}
onRetry={onRetry}
cameraPermissionModalConfig={cameraPermissionModalConfig}
webToMobileHandoffConfig={webToMobileHandoffConfig}
// UI Customization
messages={messages}
successIndicator={successIndicator}
errorIndicator={errorIndicator}
closeButton={closeButton}
/>Main Props
live
false
Boolean
Toggle the production or sandbox version. Default: false
onSuccess
true
Function
Called on successful scan. The first argument is the scanned card.
onCancel
false
Function
Triggered when the user cancels the CardScanView UI.
onError
false
Function
Called when an error is returned by the API or the CardScanView fails to initialize.
onProgress
true
Function
Progress updates during the card scanning process.
onRetry
false
Function
Called when a failed scan triggers a retry.
fullScreen
false
Boolean
Toggles the widget between full viewport coverage and a 16:9 aspect ratio within the parent container's width. Default: true
backsideSupport
false
Boolean
Enable scanning of the front and back side of the card. Default: false
eligibility
false
object
Request payload for the optional post-scan eligibility verification. See: Eligibility Verification 🩻
onEligibilitySuccess
false
Function
Called on successful eligibility request. The eligibility response is pass as an argument.
onEligibilityError
false
Function
Called when an error is returned by the eligibility API.
cameraPermissionModalConfig
false
object
The cameraPermissionModalConfig object allows customization of the Camera Permission Modal in the application. It provides the flexibility to set custom texts for various parts of the modal, enhancing the user experience by providing clear and relevant information.
Default :{ enabled: true }
webToMobileHandoffConfig
false
object
Enables seamless handoff from desktop to mobile when errors are encountered. See: Web to Mobile Handoff 📲
cameraOptions
false
object
Configures the camera's orientation during scanning.
UI/UX Customization
The react widget is designed to be highly customizable. Please see the React ⚛ section of UI Components to adjust these elements to match your application's branding and theme:
messages
Object
Customize the text displayed by the UI.
successIndicator
ReactNode
Replace the success indicator with a custom react component.
errorIndicator
ReactNode
Replace the error indicator with a custom react component.
closeButton
ReactNode
Replace the close button with a custom react component.
Note: Additional UI elements can be modified using CSS
Callbacks
onSuccess Callback
The onSuccess prop allows you to execute a custom function when the card scanning process is completed successfully. This function receives the scanned card data as an argument.
Usage
To use the onSuccess prop, pass a function that receives the scanned card data:
const handleCardScanSuccess = (cardData) => {
console.log('Card scanned successfully:', cardData);
};
<CardScanView
sessionToken={token}
onSuccess={handleCardScanSuccess}
/>In this example, the handleCardScanSuccess function logs the scanned card data to the console when the scanning process is completed successfully.
onError Callback
The onError prop allows you to execute a custom function when there's a failure during the card scanning process. This function receives an error object as an argument.
Usage
To use the onError prop, pass a function that receives the error object:
const handleCardScanError = (error: CardScanError) => {
console.error('Scanning failed:', error);
};
<CardScanView
sessionToken={token}
onSuccess={cardScanSuccess}
onError={handleCardScanError}
/>In this example, the handleCardScanError function logs the error object to the console when a scanning failure occurs.
By using the onSuccess and onError props, you can handle successful and failed scanning events, allowing you to implement custom actions or display appropriate messages to the user.
Possible errors returned to the onError callback.
type CardScanError = {
message: string;
type: string;
code: number;
isCardScanError: boolean;
};VideoError
670
Various system errors of getUserMedia(), including: “Permission Denied” and “Camera not found”
VideoError
675
Various system errors of HTMLMediaElement.play(), including: “Permission Denied” and “The element has no supported sources.”
VideoError
676
Any and all other system related video capture & canvas capture errors.
WSError
640
“No websocket found - critical failure”
WSError
642
“Unknown error from websocket”
ResponseError
HTTP Codes
Various HTTP errors returned from XMLHttpRequest and the CardScan.ai backend.
RequestError
Various
Various HTTP errors returned from Axios and XMLHttpRequest.
Unknown
606
Possible Axios setup errors, websocket setup errors, etc.
onCancel Callback
The onCancel prop enables you to execute a custom function when the user cancels the card scanning process. This can be useful for tracking user behavior, navigating to a different part of the application, or displaying an appropriate message.
Usage
To use the onCancel prop, pass a function that will be executed when the user cancels the scanning process:
import React, { useState } from 'react';
import {CardScanView} from "@cardscan.ai/insurance-cardscan-react";
const App = () => {
const [showCardScanView, setShowCardScanView] = useState(true);
return (
<div>
{showCardScanView && (
<CardScanView
sessionToken={token}
onSuccess={cardScanSuccess}
onError={cardScanError}
onCancel={() => setShowCardScanView(false)}
/>
)}
</div>
);
};
export default App;
In this example, we initialize the showCardScanView state variable to true. Then, we conditionally render the CardScanView component based on the value of showCardScanView. We then use the onCancel prop to set the showCardScanView state variable to false when the user cancels the scanning process.
onRetry Callback
The onRetry prop allows you to execute a custom function when a retry is triggered due to a scanning failure.
Usage
To use the onRetry prop, pass a function that receives the retry event as an argument:
const handleRetry = (event) => {
console.log('Retry triggered:', event);
};
<CardScanView
sessionToken={token}
onSuccess={cardScanSuccess}
onRetry={handleRetry}
/>In this example, the handleRetry function logs the retry event to the console when a retry is triggered.
onProgress Callback
The onProgress prop allows you to execute a custom function to report progress during the scanning process.
Usage
const handleProgress = (progress) => {
console.log(`Card ID: ${progress.cardId} - Scan Count: ${progress.scanCount} - Card State: ${progress.cardState}`);
};
<CardScanView
sessionToken={token}
onSuccess={cardScanSuccess}
onProgress={handleProgress}
/>In this example, the handleProgress function logs the progress during a live scanning operation. When backsideSupport is enabled the scan counter will reset to zero when the card is flipped to scan the back side.
Additional Features
Eligibility Verification
Eligibility Verification is crucial in healthcare for confirming a patient's insurance coverage and benefits before services are provided, streamlining billing and enhancing patient care.
By providing subscriber and provider details through our React component, users can initiate the verification process effortlessly. The widget offers real-time feedback with success and error callbacks, simplifying integration into your application's UI.
See Eligibility Verification 🩻 for more details.
Embedding
The fullScreen prop controls the sizing behavior of the widget. When set to true, the widget expands to fill the entire viewport, providing a full-screen experience. Setting it to false keeps the widget within the width of its parent container, maintaining a 16:9 aspect ratio. This property ensures that the widget can be embedded in various layouts while preserving its visual integrity.
Example:
<div className="scanner-container" style={{ width: "800px" }}>
<CardScanView
fullScreen={false}
sessionToken={token}
onSuccess={cardScanSuccess}
onCancel={cardScanCancel}
onError={cardScanError}
/>
</div>Camera Options
Camera Configuration allow developers to preset the camera's view orientation for specific installation scenarios, such as mirrored cameras or kiosks. These settings ensure the camera view is correctly aligned and oriented during the initial setup of the application:
flipHorizontal: Enables horizontal flipping of camera view, reversing the left to right sides of the image (aka mirrored)flipVertical: Enabled vertical flipping of camera view, swapping the top and bottom of the image when the camera or document is upside down.
<CardScanView
sessionToken={token}
onSuccess={cardScanSuccess}
cameraOptions={{
flipHorizontal: false,
flipVertical: true
}}
/>
Camera Permissions Modal
The camera permission modal is designed to handle all possible scenarios where users may refuse permission for their camera device. It serves to guide users through the steps needed to resolve a rejected permission request, whether the user manually declined access or if the device automatically blocked the permission. This ensures that users are informed and can take the necessary actions to enable camera access.
For further details, please visit the dedicated page:
Camera Permission Modal 📸CardScanModel
The CardScanModel class is designed to load and "warm" the TensorFlowJS model used during live scanning to detect insurance cards. Properly warming the model ensures it is ready for immediate use in the scanning process.
Importing the class
To utilize the CardScanModel in your project, import it as follows:
import { CardScanModel } from "@cardscan.ai/insurance-cardscan-react";Warming the Model
While importing the class and warming the model are optional, doing so will result in faster widget initialization and happier users. To warm the model, call the warm method once during the component mount. This initializes the model loading and warming process, making it ready for scanning.
CardScanModel.warm();Custom Model Path
Optionally, you can provide a custom model path to a local version of the model file or to a CDN that you control. Ensure the model files are included in your build folder. If the model cannot be loaded from the provided path, it will default to fetching the model from the CDN.
CardScanModel.warm("path/to/model.json");Model Assets
To include the model assets in your build system, configure your bundler (such as Webpack, Rollup, or a similar tool) to import all files from the assets/model-tfjs folder in the npm package. The exact configuration will depend on your specific build setup and requirements.
Error Screens
Setup Failure
This screen will be shown on setup connection failure (websocket or initial REST API call), network error, auth failure (invalid or expired token), and camera error (without webToMobileHandOff or enableCameraPermissionModal enabled).
Scan Failure
This screen will be shown on direct upload of an invalid image (i.e. a photo of a cat) or when all 12+ scan attempts have been exhausted because of poor input quality or complete backend failure.
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