Session Storage Adapter for MySQL DB

This package implements the SessionStorage interface that works with an instance of MySQL, using the mysql.Pool as the underlying connection resource.

``js
import {shopifyApp} from '@shopify/shopify-app-express';
import {MySQLSessionStorage} from '@shopify/shopify-app-session-storage-mysql';

const shopify = shopifyApp({
sessionStorage: new MySQLSessionStorage(
'mysql://username:password@host/database',
{connectionPoolLimit: 10}, // optional
),
// ...
});

// OR

const shopify = shopifyApp({
sessionStorage: new MySQLSessionStorage(
new URL('mysql://username:password@host/database'),
{connectionPoolLimit: 10}, // optional
),
// ...
});

// OR

const shopify = shopifyApp({
sessionStorage: MySQLSessionStorage.withCredentials(
'host.com',
'thedatabase',
'username',
'password',
{connectionPoolLimit: 10}, // optional
),
// ...
});
`

If you prefer to use your own implementation of a session storage mechanism that is compatible with the @shopify/shopify-app-express` package, see the implementing session storage guide.