# Solana AccountsDb Plugin Interface This crate enables an AccountsDb plugin to be plugged into the Solana Validator runtime to take actions at the time of each account update; for example, saving the account state to an external database. The plugin must implement the `AccountsDbPlugin` trait. Please see the detail of the `accountsdb_plugin_interface.rs` for the interface definition. The plugin should produce a `cdylib` dynamic library, which must expose a `C` function `_create_plugin()` that instantiates the implementation of the interface. The `solana-accountsdb-plugin-postgres` crate provides an example of how to create a plugin which saves the accounts data into an external PostgreSQL databases. More information about Solana is available in the [Solana documentation](https://docs.solana.com/). Still have questions? Ask us on [Discord](https://discordapp.com/invite/pquxPsq)