@front-finance/link

@front-finance/link

JS library for integrating with Front Finance

Install

With npm:

npm install --save @front-finance/link

With yarn

yarn add @front-finance/link

Getting connection link

Connection link should be obtained from the GET /api/v1/cataloglink endpoint. Api reference for this request is available here. Request must be preformed from the server side because it requires the client secret. You will get the response in the following format:

{
  "content": {
    "url": "https://web.getfront.com/broker-connect?auth_code={authCode}",
    "iFrameUrl": "https://web.getfront.com/b2b-iframe/{clientId}/broker-connect?auth_code={authCode}"
  },
  "status": "ok",
  "message": ""
}

You can use iFrameUrl from this response to open the popup window with openPopup method. url field is used to open link in the same tab by openLink method.

Generating connection method

import { createFrontConnection } from '@front-finance/link';

// ...

const frontConnection = createFrontConnection({
  clientId: '<Your Front Finance Client Id>',
  onBrokerConnected: (brokerData: FrontPayload) => {
    // use broker account data
  },
  onExit: (error?: string) => {
    if (error) {
      // handle error
    } else {
      // ...
    }
  }

Using connection to open auth link

To open authentication link rpovided by Front Finance Integration API you need to call openPopup method:

frontConnection.openPopup(authLink)

ℹ️ See full source code example at react-example/src/ui/Front.tsx

import {
  createFrontConnection,
  FrontConnection,
  FrontPayload
} from '@front-finance/link'

// ...

const [frontConnection, setFrontConnection] = useState<FrontConnection | null>(
  null
)

useEffect(() => {
  setFrontConnection(createFrontConnection(options))
}, [])

useEffect(() => {
  if (authLink) {
    frontConnection?.openPopup(authLink)
  }
}, [frontConnection, authLink])

return <></>

Getting tokens

After successfull authentication on Front Finance user will be redirected back to provided callback URL. FrontConnection instance will check if URL contains query parameters, load broker tokens and fire the events.

Available Connection configuration options

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

createFrontConnection arguments

key	type	description
clientId	string	Keys from https://dashboard.getfront.com/company/keys page
onBrokerConnected	(payload: FrontPayload) => void	Callback called when users connects their accounts
onExit	((error?: string | undefined) => void) | undefined	Called if connection not happened
onTransferFinished	(payload: TransferFinishedPayload) => void	Callback called when a crypto transfer is executed

createFrontConnection return value

key	type	description
openLink	(link: string) => Promise<void>	Opens url in same tab.
openPopup	(iframeUrl: string) => Promise<void>	Opens url in popup
closePopup	() => Promise<void>	Closes popup window

Using tokens

You can use broker tokens to perform requests to get current balance, assets and execute transactions. Full API reference can be found here.

Typescript support

TypeScript definitions for @front-finance/link are built into the npm package.