### Install snaptrade-react

Source: https://github.com/passiv/snaptrade-react/blob/main/README.md

Install the snaptrade-react package using npm.

```shell
npm install snaptrade-react
```

--------------------------------

### Implement Custom Connection UI with useWindowMessage Hook

Source: https://context7.com/passiv/snaptrade-react/llms.txt

Use this hook to listen for postMessage events from the SnapTrade iframe. It automatically handles messages from allowed SnapTrade origins.

```tsx
import { useEffect, useState } from 'react';
import { useWindowMessage } from 'snaptrade-react/hooks/useWindowMessage';

const CustomConnectionPortal = () => {
  const [connectionStatus, setConnectionStatus] = useState<'idle' | 'connecting' | 'success' | 'error'>('idle');
  const [authId, setAuthId] = useState<string | null>(null);
  const [errorDetails, setErrorDetails] = useState<string | null>(null);

  const handleSuccess = (authorizationId: string) => {
    setConnectionStatus('success');
    setAuthId(authorizationId);
    // Authorization ID can be used to fetch account details
    // Example: GET /api/v1/accounts?authorizationId={authorizationId}
  };

  const handleError = (data: { statusCode: string; detail: string; errorCode?: string }) => {
    setConnectionStatus('error');
    setErrorDetails(`Error ${data.statusCode}: ${data.detail}`);
  };

  const handleExit = () => {
    console.log('User closed the connection flow');
    setConnectionStatus('idle');
  };

  const closeModal = () => {
    setConnectionStatus('idle');
  };

  // Hook automatically listens for messages from allowed SnapTrade origins:
  // - https://app.snaptrade.com
  // - https://connect.snaptrade.com
  // - https://app.staging.snaptrade.com
  useWindowMessage({
    handleSuccess,
    handleError,
    handleExit,
    close: closeModal,
  });

  return (
    <div>
      {connectionStatus === 'success' && (
        <div>Connected successfully! Auth ID: {authId}</div>
      )}
      {connectionStatus === 'error' && (
        <div>Connection failed: {errorDetails}</div>
      )}
      {/* Render custom iframe or connection UI */}
    </div>
  );
};

export default CustomConnectionPortal;
```

--------------------------------

### Integrate Brokerage Connection Modal with SnapTradeReact

Source: https://context7.com/passiv/snaptrade-react/llms.txt

Use the SnapTradeReact component to render the brokerage connection portal in a modal. It requires a login link generated from the SnapTrade API and provides callbacks for success, error, and user exit events. Ensure the modal's overlay has a sufficient z-index for proper display.

```tsx
import { useState } from 'react';
import { SnapTradeReact } from 'snaptrade-react';

const BrokerageConnection = () => {
  const [isOpen, setIsOpen] = useState(false);
  const [loginLink, setLoginLink] = useState<string | null>(null);

  const initiateConnection = async () => {
    // Call SnapTrade API to generate redirect link
    const response = await fetch('https://api.snaptrade.com/api/v1/snapTrade/login', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
        'Authorization': 'Bearer YOUR_API_KEY'
      },
      body: JSON.stringify({
        userId: 'user-123',
        userSecret: 'user-secret'
      })
    });
    const data = await response.json();
    setLoginLink(data.redirectURI);
    setIsOpen(true);
  };

  const handleSuccess = (authorizationId: string) => {
    console.log('Connection successful! Authorization ID:', authorizationId);
    setIsOpen(false);
    // Fetch connected accounts or update UI
  };

  const handleError = (error: { statusCode: string; detail: string; errorCode?: string }) => {
    console.error('Connection error:', error.detail);
    console.error('Status code:', error.statusCode);
    // Display error message to user
  };

  const handleExit = () => {
    console.log('User exited without completing connection');
  };

  const handleClose = () => {
    setIsOpen(false);
  };

  return (
    <div>
      <button onClick={initiateConnection}>Connect Brokerage Account</button>

      <SnapTradeReact
        loginLink={loginLink}
        isOpen={isOpen}
        close={handleClose}
        onSuccess={handleSuccess}
        onError={handleError}
        onExit={handleExit}
        contentLabel="Connect Your Brokerage Account"
        style={{
          overlay: {
            backgroundColor: 'rgba(0, 0, 0, 0.5)',
            zIndex: 1000
          }
        }}
      />
    </div>
  );
};

export default BrokerageConnection;
```

--------------------------------

### Connect Brokerage Component

Source: https://github.com/passiv/snaptrade-react/blob/main/README.md

A React component that uses the SnapTradeReact modal to initiate the brokerage connection process. It requires a function to generate a redirect URI and manages the modal's open state.

```jsx
import { useState } from 'react';
import { SnapTradeReact } from 'snaptrade-react';

const ConnectBrokerage = () => {
  const [open, setOpen] = useState(false);
  const [redirectLink, setRedirectLink] = useState(null);

  const connectionProcess = () => {
    // call "https://api.snaptrade.com/api/v1/snapTrade/login" to  generate a redirect link
    const link = getRedirectURI();

    // update the state with the generated link
    setRedirectLink(link);

    // update the "open" state to show the modal
    setOpen(true);
  };
  return (
    <div>
      {/* your Connect button */}
      <button onClick={connectionProcess}>Connect</button>

      <SnapTradeReact
        loginLink={redirectLink}
        isOpen={open}
        close={() => setOpen(false)}
      />
    </div>
  );
};

export default ConnectBrokerage;
```

--------------------------------

### Using useWindowMessage Hook in React

Source: https://github.com/passiv/snaptrade-react/blob/main/README.md

This hook listens for window messages to handle success, error, exit, and close modal events. Ensure all necessary callback functions are passed as props.

```javascript
import { useEffect } from 'react';
import { useWindowMessage } from 'snaptrade-react/hooks/useWindowMessage';

const MyComponent = () => {
  const onSuccess = (data) => {
    console.log('Success:', data);
  };

  const onError = (data) => {
    console.error('Error:', data);
  };

  const onExit = () => {
    console.log('Exit');
  };

  const close = () => {
    console.log('Close');
  };

  useWindowMessage({
    handleSuccess: onSuccess,
    handleError: onError,
    handleExit: onExit,
    close: close,
  });

  return <div>My Component</div>;
};

export default MyComponent;

```

--------------------------------

### Handle Brokerage Connection Errors with ErrorData Type

Source: https://context7.com/passiv/snaptrade-react/llms.txt

This TypeScript interface defines the structure of error data returned upon connection failure. Use it to properly handle and display error information.

```tsx
import type { ErrorData } from 'snaptrade-react';

const handleConnectionError = (error: ErrorData) => {
  // ErrorData structure:
  // {
  //   statusCode: string;  // HTTP status code (e.g., "400", "401", "500")
  //   detail: string;      // Human-readable error description
  //   errorCode?: string;  // Optional specific error code from SnapTrade
  // }

  switch (error.statusCode) {
    case '401':
      console.error('Authentication failed:', error.detail);
      // Redirect to login or refresh tokens
      break;
    case '400':
      console.error('Bad request:', error.detail);
      // Display validation error to user
      break;
    case '500':
      console.error('Server error:', error.detail);
      // Show generic error message, suggest retry
      break;
    default:
      console.error(`Error [${error.errorCode || 'UNKNOWN'}]`, error.detail);
  }
};
```

--------------------------------

### Enable Dark Mode for SnapTradeReact Component

Source: https://context7.com/passiv/snaptrade-react/llms.txt

The SnapTradeReact component automatically detects dark mode from the login link URL parameters. You can also override styles with custom CSS.

```tsx
import { useState } from 'react';
import { SnapTradeReact } from 'snaptrade-react';

const DarkModeConnection = () => {
  const [isOpen, setIsOpen] = useState(false);

  // Login link with dark mode enabled
  // The component reads the darkMode query parameter and adjusts styling
  const darkModeLoginLink = 'https://app.snaptrade.com/connect?darkMode=true&token=xyz';

  // When darkMode=true:
  // - Modal overlay defaults to 'rgba(0, 0, 0, 0.75)' instead of white
  // - Modal content background changes to '#0a0a0a'

  // You can still override with custom styles
  return (
    <SnapTradeReact
      loginLink={darkModeLoginLink}
      isOpen={isOpen}
      close={() => setIsOpen(false)}
      style={{
        overlay: {
          backgroundColor: 'rgba(30, 30, 30, 0.9)', // Custom dark overlay
          zIndex: 2000
        }
      }}
    />
  );
};

```

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