// drogon::app().createDbClient(
//     "mysql", "127.0.0.1", 3306, "ariadne_thread",
//     "drogon_user", "RT_s20$146Zs%k", 1, "", "mk", false, "", -1, false);
    
// Load config file
drogon::app().loadConfigFile("../config.json");
drogon::orm::DbClientPtr db = drogon::app().getDbClient("default");
// drogon::app().loadConfigFile("../config.yaml");
// Run HTTP framework,the method will block in the internal event loop

drogon::app().run();
return 0;`

"db_clients":
[
    {
        //name: Name of the client,'default' by default
        "name": "default",
        //rdbms: Server type, postgresql, mysql or sqlite3, "postgresql" by default
        "rdbms": "sqlite3",
        //filename: Sqlite3 db file name
        "filename":"klines.db",
        //host: Server address,localhost by default
        //"host": "127.0.0.1",
        //port: Server port, 5432 by default
        //"port": 3306,
        //dbname: Database name
        //"dbname": "ariadne_thread",
        //user: 'postgres' by default
        //"user": "drogon_user",
        //passwd: '' by default
        //"passwd": "RT_s20$146Zs%k",
        //is_fast: false by default, if it is true, the client is faster but user can't call
        //any synchronous interface of it.
        "is_fast": false,
        //client_encoding: The character set used by the client. it is empty string by default which 
        //means use the default character set.
        //"client_encoding": "",
        //number_of_connections: 1 by default, if the 'is_fast' is true, the number is the number of  
        //connections per IO thread, otherwise it is the total number of all connections.  
        "number_of_connections": 1,
        //timeout: -1.0 by default, in seconds, the timeout for executing a SQL query.
        //zero or negative value means no timeout.
        "timeout": -1.0,
        //auto_batch: this feature is only available for the PostgreSQL driver(version >= 14.0), see
        //the wiki for more details.
        "auto_batch": false
        //connect_options: extra options for the connection. Only works for PostgreSQL now.
        //For more information, see https://www.postgresql.org/docs/16/libpq-connect.html#LIBPQ-CONNECT-OPTIONS
        //"connect_options": { "statement_timeout": "1s" }
    }
]