# [greenlock-store-sequelize](https://git.rootprojects.org/root/greenlock-store-sequelize.js) | A [Root](https://rootprojects.org) project > A database-driven Greenlock storage plugin with wildcard support. ## Usage To use, provide this Greenlock storage plugin as the `store` attribute when you invoke `create`. ```js greenlock.create({ store: require('le-store-sequelize') }); ``` ## Configuration ### Defaults No configuration is required. By default, you'll get a baked-in Sequelize database running [sqlite3](https://www.npmjs.com/package/sqlite3). ### Database Connection Without `config.dbOptions`, the baked-in sequelize object uses sqlite3 with defaults. If `config.dbOptions` is provided, you can configure the database connection per the Sequelize documentation. If a dialect other than sqlite3 is used, dependencies will need to be installed. ```javascript greenlock.create({ store: require('le-store-sequelize')({ dbConfig: { username: 'mysqluser', password: 'mysqlpassword', database: 'mysqldatabase, host: '127.0.0.1', dialect: 'mysql' } }) }); ``` The database can also be configured using an env variable. ```javascript greenlock.create({ store: require('greenlock-store-sequelize')({ dbConfig: { use_env_variable: 'DB_URL' } }) }); ``` ### Custom Database Object If you already have a Sequelize object, you can pass that in as `config.db`, circumventing the baked-in database entirely. ```javascript var db = require('./db'); // your db greenlock.create({ store: require('le-store-sequelize')({ db }) }); ```