Drogon supports the sqlite3 database in order to support lightweight applications. The asynchronous interface is implemented through the thread pool, which is the same as the interfaces of the aforementioned databases.

DbClient provides both synchronous and asynchronous interfaces. The asynchronous interface also supports both blocking and non-blocking modes. Of course, for the cooperation with the Drogon asynchronous framework, it is recommended that you use the the asynchronous interface with non-blocking mode.

For details on DbClient, see .

Drogon also provides support for ORM. Users can use the drogon_ctl command to read the tables in the database and generate the corresponding model source code. Then, execute the database operations of these models through the Mapper<MODEL> class template. Mapper provides simple and convenient interfaces for standard database operations, allowing users to make the additions, deletions, and changes to the table without writing sql statements. For ORM, please refer to ORM

08.1 DbClient