Hyphen Widget

Getting started with the Hyphen widget is quite easy, no need to worry about building your own UI. Having seamless bridging inside your dApp has never been easier!

Installation

``shell
npm install @biconomy/hyphen-widget

or

yarn add @biconomy/hyphen-widget
`

Importing & Instantiation

- To use the widget import the HyphenWidget component and initialize it in your JavaScript file by passing a "tag" value in its configuration. This is the only mandatory parameter, other parameters are optional.
- Add an element in your HTML with an appropriate ID which will render the widget.

`javascript
import * as HyphenWidget from "@biconomy/hyphen-widget";
import "@biconomy/hyphen-widget/dist/index.css";

const hyphenWidget = HyphenWidget.default.init(
document.getElementById("widget"),
{
// unique identifier for your application (should ideally contain your dApp name),
// this is a required field.
tag: string,
}
);
`

`html















`

$3

`typescript
import { useState, useEffect } from "react";
import * as HyphenWidget from "@biconomy/hyphen-widget";
import "@biconomy/hyphen-widget/dist/index.css";

function App() {
const [hyphenWidget, setHyphenWidget] = useState();

useEffect(() => {
const widget = HyphenWidget.default.init(
document.getElementById("widget"),
{
tag: "expecto-patronum",
showWidget: true,
showCloseButton: true,
}
);

if (widget) {
setHyphenWidget(widget);
}
}, []);

function handleOpen() {
hyphenWidget.open();
}

function handleClose() {
hyphenWidget.close();
}

return

;
}

export default App;
`

Optional configuration

The following additional configuration options can be passed while initializing the widget, these are optional and can be skipped:

`typescript
{
// can be test, staging or production. Default: "staging"
env: string,
// should the widget be shown by default or not. Default: false
showWidget: boolean,
// should the widget have a close button to close it. Default: false
showCloseButton: boolean,
// should the widget allow ability to change receiver address. Default: true
showChangeAddress: boolean,
// allows ability to swap for gas tokens while making a transfer.
showGasTokenSwap: boolean,
// array of chain ids to specify the possible source chains. Chains not in this list will be excluded.
allowedSourceChains: number[],
// array of chain ids to specify the possible destination chains. Chains not in this list will be excluded.
allowedDestinationChains: number[],
// array of token symbols to specify the possible tokens. Tokens not in this list will be excluded.
allowedTokens: string[],
// chain id to specify the default source chain which should be selected.
defaultSourceChain: number,
// chain id to specify the default destination chain which should be selected.
defaultDestinationChain: number,
// token symbol to specify the default token which should be selected.
defaultToken: string,
// API keys for using Gasless.
apiKeys: {
Ethereum: string,
Polygon: string,
Avalanche: string,
},
// Custom RPC URLs for the supported networks.
rpcUrls: {
Ethereum: string,
Polygon: string,
Avalanche: string,
},
// NOTE: following 2 callback emit when tx is sent, you should check the status by yourself
onDeposit: (e) => console.log("Deposit " + e), // emit when depost tx is sent
onExit: (e) => console.log("Exit " + e), // emit when exit tx (receiver will receive tokens) is sent
/*
input: {
sourceChain?: string;
destinationChain?: string;
token?: string;
amount?: string;
receiver?: string;
gasless: boolean;
}
*/
onChange: (input) => console.log("Input " + JSON.stringify(input)),
}
`

Note: For using Gasless obtain Biconomy api keys from Biconomy and pass those during initialization using apiKeys object. Similarly for passing custom RPC URLs obtain RPC endpoints from providers like Infura or Alchemy and pass them using rpcUrls object.

For testnets the initialization would look something like this:

`javascript
import * as HyphenWidget from "@biconomy/hyphen-widget";
import "@biconomy/hyphen-widget/dist/index.css";

const hyphenWidget = HyphenWidget.default.init(document.getElementById("widget"), {
tag: "my-awesome-dapp",
env: "test",
// Other options.
...
});
`

Methods

$3

Use the open method to open the modal:

`typescript
import * as HyphenWidget from "@biconomy/hyphen-widget";
import "@biconomy/hyphen-widget/dist/index.css";

const hyphenWidget = HyphenWidget.default.init(
document.getElementById("widget"),
{
tag: "my-awesome-dapp",
}
);

hyphenWidget.open();
`

$3

Use the close method to close the modal:

`typescript
import * as HyphenWidget from "@biconomy/hyphen-widget";
import "@biconomy/hyphen-widget/dist/index.css";

const hyphenWidget = HyphenWidget.default.init(
document.getElementById("widget"),
{
tag: "my-awesome-dapp",
}
);

hyphenWidget.close();
``

Demo

You can check out the demo repository here. The hosted versions of the demo can be checked over here: mainnet and testnet.

We also have a video going through the widget's integration:

https://www.youtube.com/watch?v=1ErNhH6TKj0