## Express Wallet Buttons
Express Wallet Buttons allow to integrate with E-Wallets in an "express" operational mode, allowing to show the respective button in product or cart pages.
The general flow to use the widgets is:
1. Configure your gateway and connect it using Paydock API or Dashboard.
2. Create a container in your site
```html
```
3. Initialize the specific WalletButtonExpress, providing your Access Token (preferred) or Public Key, plus required and optional meta parameters for the wallet in use. The general format is:
```js
new paydock.{Provider}WalletButtonExpress(
"#widget",
accessTokenOrPublicKey,
gatewayId,
gatewaySpecificMeta,
);
```
4. (optional) If the screen where the button is rendered allows for cart/amount changes, call `setMeta` method to update the meta information.
5. Handle the `onClick` callback, where you should call your server, initialize the wallet charge via `POST v1/charges/wallet` and return the wallet token.
6. Handle the `onPaymentSuccessful`, `onPaymentError` and `onPaymentInReview` (if fraud is applicable) for payment results.
### Supported Providers
1. [Apple Pay](#apple-pay-wallet-button-express)
2. [Paypal](#paypal-wallet-button-express)
### Apple Pay Wallet Button Express
A full description of the meta parameters for [ApplePayWalletButtonExpress](#ApplePayWalletButtonExpress) meta parameters can be found [here](#ApplePayWalletMeta). Below you will find a fully working html example.
```html
Title
Payment using PayDock ApplePayWalletButtonExpress!
```
### Paypal Wallet Button Express
A full description of the meta parameters for [PaypalWalletButtonExpress](#PaypalWalletButtonExpress) meta parameters can be found [here](#PaypalWalletMeta). Below you will find a fully working html example.
```html
Title
Payment using PayDock PaypalWalletButtonExpress!
```