MySQL

Reading from MySQL database:

    "data" : [{
        "name":"test", 
        "format":"jdbc", 
        "props": {
            "url": "jdbc:mysql://localhost:3306/<db_name>",
            "dbtable": "testData",
            "driver": "com.mysql.cj.jdbc.Driver",
            "user": "root",
            "password": "password"				
        }
    }],

Please replace <db_name> with the name of the database in addition to other props. For more details, refer to the spark documentation.