react-plaid-link

React hook and components for integrating with Plaid Link

Compatibility

React 16.8+

Install

With npm:

npm install --save react-plaid-link

With yarn

yarn add react-plaid-link

Documentation

Please refer to the official Plaid Link docs for a more holistic understanding of Plaid Link.

Examples

Head to the react-plaid-link storybook to try out a live demo.

See the examples folder for various complete source code examples.

Using React hooks

This is the preferred approach for integrating with Plaid Link in React.

Note: token can be null initially and then set once you fetch or generate a link_token asynchronously.

ℹ️ See a full source code examples of using hooks:

• examples/simple.tsx: minimal example of using hooks
• examples/hooks.tsx: example using hooks with all available callbacks
• examples/oauth.tsx: example handling OAuth with hooks

import { usePlaidLink } from 'react-plaid-link';

// ...

const { open, ready } = usePlaidLink({
  token: '<GENERATED_LINK_TOKEN>',
  onSuccess: (public_token, metadata) => {
    // send public_token to server
  },
});

return (
  <button onClick={() => open()} disabled={!ready}>
    Connect a bank account
  </button>
);

Available Link configuration options

ℹ️ See src/types/index.ts for exported types.

Please refer to the official Plaid Link docs for a more holistic understanding of the various Link options and the link_token.

usePlaidLink arguments

key	type
token	string \| null
onSuccess	(public_token: string, metadata: PlaidLinkOnSuccessMetadata) => void
onExit	(error: null \| PlaidLinkError, metadata: PlaidLinkOnExitMetadata) => void
onEvent	(eventName: PlaidLinkStableEvent \| string, metadata: PlaidLinkOnEventMetadata) => void
onLoad	() => void
receivedRedirectUri	string \| null \| undefined

usePlaidLink return value

key	type
open	() => void
ready	boolean
error	ErrorEvent \| null
exit	(options?: { force: boolean }, callback?: () => void) => void

OAuth / opening Link without a button click

Handling OAuth redirects requires opening Link without any user input (such as clicking a button). This can also be useful if you simply want Link to open immediately when your page or component renders.

ℹ️ See full source code example at examples/oauth.tsx

import { usePlaidLink } from 'react-plaid-link';

// ...

const { open, ready } = usePlaidLink(config);

// open Link immediately when ready
React.useEffect(() => {
  if (ready) {
    open();
  }
}, [ready, open]);

return <></>;

Usage with Wallet Onboard

Plaid Wallet Onboard uses similar patterns. See the Wallet Onboard docs for a holistic understanding on configuration and usage.

ℹ️ See a full source code example of using hooks with Wallet Onboard:

• examples/web3.tsx: minimal example of using hooks
• src/types/web3.ts for exported types.

import { useEthereumProvider } from 'react-plaid-link/web3';

// ...

const onSuccess = useCallback(
  async provider => {
    const accounts = await provider.request({
      method: 'eth_accounts',
    });
    setAccounts(accounts);
  },
  [setAccounts]
);

const { open, ready } = useEthereumProvider({
  token:
    'https://plaid.com/docs/wallet-onboard/add-to-app/#enable-wallet-onboard-and-retrieve-a-link-token',
  chain: {
    chainId: '0x1',
    rpcUrl: '',
  },
  onSuccess,
});

return (
  <button onClick={() => open()} disabled={!ready}>
    Connect wallet
  </button>
);

useEthereumProvider arguments

key	type
token	string \| null
chain	ChainOption
onSuccess	(provider: EIP1193Provider) => void
onExit	(error: null \| PlaidLinkError, metadata: PlaidLinkOnExitMetadata) => void
onLoad	() => void
receivedRedirectUri	string \| null \| undefined

useEthereumProvider return value

key	type
open	() => void
ready	boolean
error	ErrorEvent \| null
getCurrentEthereumProvider	(chainOption: ChainOption) => Promise<EIP1193Provider \| null \| undefined>
isProviderActive	(provider: EIP1193Provider) => Promise<boolean>
disconnectEthereumProvider	(provider: EIP1193Provider) => Promise<void>

Using the pre-built component instead of the usePlaidLink hook

If you cannot use React hooks for legacy reasons such as incompatibility with class components, you can use the PlaidLink component.

ℹ️ See full source code example at examples/component.tsx

import { PlaidLink } from "react-plaid-link";

const App extends React.Component {
  // ...
  render() {
    return (
      <PlaidLink
        token={this.state.token}
        onSuccess={this.onSuccess}
        // onEvent={...}
        // onExit={...}
      >
        Link your bank account
      </PlaidLink>
    );
  }
}

Typescript support

TypeScript definitions for react-plaid-link are built into the npm package. If you have previously installed @types/react-plaid-link before this package had types, please uninstall it in favor of built-in types.