Web Integration (OLD)

Plain HTML Integration

To integrate the Widget, you just need to include the Fintoc script on your HTML. The Fintoc script needs to be on each page where the Widget needs to be used.

<script src="https://js.fintoc.com/v1/"></script>

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window.onload
Remember that, when importing a JavaScript script, if you try to use functions before the browser loads the script, an error will be raised. You can solve this by using the native browser event window.onload.

ES Module Integration

You can also use the Widget as an ES module through npm! Just use our @fintoc/fintoc-js library!

npm install @fintoc/fintoc-js

The library exports an async getFintoc method that returns the Fintoc object!

import { getFintoc } from '@fintoc/fintoc-js';

// You can read more about the parameters below
const options = { ... };

const main = async () => {
  const Fintoc = await getFintoc();
  const widget = Fintoc.create(options);
  widget.open();
}

main();

How it works

When including the Fintoc script on your application (or after using the getFintoc method of the @fintoc/fintoc-js library), you will have access to the Fintoc class, that will allow you to create connections with a financial institution from within your application.

const widget = Fintoc.create({
  holderType,
  product,
  publicKey,
  webhookUrl,
  country,
  institutionId,
  username,
  widgetToken,
  onSuccess,
  onExit,
  onEvent,
})

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Note: remember to call the .open() method in order to raise the widget.

Parameter	Type	Description
publicKey	string	The `publicKey` is used to identify your web application or web page within Fintoc. Links created with a `publicKey` will get assigned to the organization or user that owns said `publicKey`. This token will determine whether you're using the sandbox or the production environment. Remember that the `publicKey` of the sandbox starts with `pk_test_`, while the production one starts with `pk_live_`.
holderType	string	The `holderType` parameter can be `business` or `individual`, and determines the type of account that will be connected to Fintoc. For the payment initiation product you must always use`individual` as the holder_type.
product	string	The `product` parameter can be `movements`, `subscriptions`, `invoices`, or `payments`, and determines the product and type of Link that will be created.
country	string	The `country` parameter must be the `ISO 3166-1 alfa-2` code of the country to which you're trying to connect. It can be `cl` or `mx`. Defaults to `cl`.
institutionId	string	Optional*. The `institutionId` parameter corresponds to the `id` of a financial institution. If included, said institution will be pre-selected. For example, the value `cl_banco_estado` would command the widget to open with Banco Estado by default. Before pre-selecting an institution, check the availability using the list institutions endpoint
username	string or object	Optional*. The `username` pre-fills the username field when making a payment. The attributes of the username object are below. If a string is sent, it will take the default value for the editable attribute.
webhookUrl	string	Only used for `movements` and `invoices` products, if you are integrating `payments` or `subscriptions` you don't need this. The `webhookUrl` parameter corresponds to the URL that will get a request with the new Link* after its successful creation, including its link_token.
widgetToken	string	The `widgetToken` parameter corresponds to the token created by the backend that initializes and configures the widget. Right now, only the `payments` and `subscriptions` products uses a `widgetToken` parameter.
onSuccess	function	The `onSuccess` parameter corresponds to a callback that will be called after the flow finishes successfully.
onExit	function	The `onExit` parameter corresponds to a callback that will be called after a user closes the Widget prematurely.
onEvent	function	The `onEvent` parameter corresponds to a callback that will be called every time after a user executes a meaningful action on the Widget.

❗️
Use the Widget callbacks and events correctly
Never use the onSuccess, onExit or onEvent callbacks to get the state of the resource being created. You should only use these callbacks to handle the flow of your frontend application, while waiting backend confirmation, either via Webhooks or by exchanging some exchange token. Frontend events can also be used to generate metrics about general widget usage, but you should never rely solely on them to assume a resource was created or failed to be created.

Username Object

To pre-fill a username and change the default values, you can send an object with the following attributes

username = {
  value: "123456789",
  editable: true
}

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Using the pre-fill option boosts payment conversion
Our testing has shown that using the pre-fill can boost conversion by around 3%

Attribute	Type	Description
value	string	The username that will be pre-filled on the widget. In Chile you should input the user's RUT and in Mexico you should input the user's phone number.
editable	bool	Whether the field is editable or not in the widget. By default it's set to `true`.

Methods of the Widget object

Once a widget object gets created, you can use its methods to interact with it. The available methods are open, close and destroy.

Method	Description
widget.open()	The `open` method opens the Widget whenever it is called.
widget.close()	The `close` method closes the widget whenever it is called. It does not destroy the widget instance, it only hides it from the user. You can call the `open` method after the `close` method and the widget will show again.
widget.destroy()	The `destroy` method removes the Widget instance from your application. If you want to re-open the widget after calling the `destroy` method, you will need to create another Widget instance using `Fintoc.create()`.

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How to use the widget.destroy() method
When using Fintoc.create(args), an iframe gets embedded within your application. Sometimes (primarily when developing an SPA), you might need to remove this iframe. This can get done using the destroy method. If you then need to re-open the widget, you will need to create a new instance using the Fintoc.create(args) method once again.

Plain HTML Integration

window.onload

ES Module Integration

How it works

Use the Widget callbacks and events correctly

Username Object

Using the pre-fill option boosts payment conversion

Methods of the Widget object

How to use the widget.destroy() method

How to use the `widget.destroy()` method