SeaORM

SeaORM uses the same AuthStore contract as SQLx.

Generate entities

better-auth = { git = "https://github.com/cschmatzler/better-auth-rs", default-features = false, features = ["axum", "seaorm", "rustls"] }

better-auth-rs generate --backend seaorm -o src/auth_schema.rs

Add serde, serde_json, and chrono as in installation. The example installs generated tables for a new database. Use versioned application migrations as your schema evolves.

Connect and build

use crate::auth_schema::{AppAuthSchema, run_app_migrations};
use better_auth::plugins::EmailPasswordPlugin;
use better_auth::seaorm::{Database, SeaOrmStore};
use better_auth::{AuthConfig, BetterAuth};

async fn build_auth(
    secret: &str,
    database_url: &str,
) -> Result<BetterAuth<AppAuthSchema>, Box<dyn std::error::Error>> {
    let config = AuthConfig::new(secret).base_url("http://localhost:3000");
    let database = Database::connect(database_url).await?;
    run_app_migrations(&database).await?;
    let store = SeaOrmStore::<AppAuthSchema>::new(config.clone(), database);

    Ok(BetterAuth::<AppAuthSchema>::new(config)
        .store(store)
        .plugin(EmailPasswordPlugin::new())
        .build()
        .await?)
}

For existing entities, derive DeriveEntityModel and better_auth::seaorm::AuthEntity, then select them in AuthSchema. Use SchemaMigrator only when installing the bundled schema. See existing databases for UTC timestamp conventions.