backend/src/main.rs


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use diesel::SqliteConnection;
use diesel_migrations::MigrationHarness;
use diesel_migrations::{embed_migrations, EmbeddedMigrations};
use rocket::fairing::AdHoc;
use rocket::{launch, routes, Build, Rocket};

use crate::databases::UserDataDb;

pub mod databases;
pub mod models;
pub mod routes;
pub mod schema;

pub const MIGRATIONS: EmbeddedMigrations = embed_migrations!("migrations");

fn run_database_migrations(connection: &mut SqliteConnection) {
    connection
        .run_pending_migrations(MIGRATIONS)
        .expect("Error running database migrations");
}

#[launch]
async fn rocket() -> Rocket<Build> {
    rocket::build()
        .attach(UserDataDb::fairing())
        .attach(AdHoc::on_liftoff("Database Migration", |rocket| {
            Box::pin(async move {
                let user_data_db = UserDataDb::get_one(rocket).await.expect(
                    "Failed to get connection to user data database in order to run migrations",
                );
                user_data_db.run(run_database_migrations).await;
            })
        }))
        .mount(
            "/",
            routes![
                routes::account::get_all_accounts,
                routes::account::create_account
            ],
        )
}