Rocket/contrib/db_pools
Sergio Benitez 926e06ef3c Finalize 'tracing' migration.
This commit complete the migration to 'tracing' for all logging. Below
is a summary of all relevant commits, including this one:

Log improvements:
  - All log (trace) messages are structured which means they contain fields
    that can formatted by any subscriber.
  - Logging can be disabled entirely by disabling the default `trace` feature.
  - Routes and catchers now contain location (file/line) information.
  - Two log format kinds: pretty and compact via ROCKET_LOG_FORMAT
  - Coloring is not disabled globally. Thus applications can color even if
    Rocket is configured not to.
  - Rocket is more conservative about 'warn' and 'error' messages, reserving
    those log levels for messages useful in production.
  - Errors from guards logged by codegen now use the 'Display' implementation of
    those errors when one exists.
  - Secrets are never logged, even when directly asked for.

New features:
  - Many Rocket types know how to trace themselves via a new `Trace` trait.
  - `Either` types can now be used in `uri!()` calls.
  - A `RequestIdLayer` tags all requests with a unique ID.

Breaking changes to configuration:
  - `Config::log_level` is of type `Option<Level>`. `None` disables tracing.
  - `log_level` now uses the traditional log level names: "off", "error",
    "warn", "info", "debug", "trace", or 0-5. This replace the Rocket-specific
    "normal", "debug", "critical".
  - A new option, `log_format`, which is either `compact` or `pretty`,
    determines how Rocket's tracing subscriber log trace messages.

Breaking changes:
  - Hidden `rocket::Either` is now publicly available at `rocket::either::Either`.
  - `rocket::Error` no longer panics when dropped.
  - `main` generated by `#[launch]` returns an `ExitCode`.
  - `FromParam` `Err` now always returns the actual error as opposed to the
    string that failed to parse. To recover the original string, use `Either<T,
    &str>`, where `T: FromParam`, as a parameter guard.
  - Many types that implemented `Display` now instead implement `Trace`.
  - `Error::pretty_print()` was removed. Use `Error::trace()` via `Trace` impl.

Internal improvements:
  - Made more space in CI machines for tasks.
  - Cleaned up testbench code using `inventory`.

Resolves #21.
2024-06-03 15:02:44 -07:00
..
codegen Use workspace lints. Resolve new nightly warnings. 2024-05-20 13:39:14 -05:00
lib Finalize 'tracing' migration. 2024-06-03 15:02:44 -07:00
README.md Update 'SergioBenitez/Rocket' to 'rwf2/Rocket'. 2023-11-21 16:32:25 +01:00

README.md

db_pools ci.svg crates.io docs.svg

Asynchronous database driver integration for Rocket. See the crate docs for full usage details.

Usage

  1. Add rocket_db_pools as a dependency with one or more database driver features enabled:

    [dependencies.rocket_db_pools]
    version = "0.1.0"
    features = ["sqlx_sqlite"]
    
  2. Choose a name for your database, here sqlite_logs. Configure at least a URL for the database:

    [default.databases.sqlite_logs]
    url = "/path/to/database.sqlite"
    
  3. Derive Database for a unit type (Logs here) which wraps the selected driver's Pool type and is decorated with #[database("name")]. Attach Type::init() to your application's Rocket to initialize the database pool:

    use rocket_db_pools::{Database, Connection};
    
    #[derive(Database)]
    #[database("sqlite_logs")]
    struct Logs(sqlx::SqlitePool);
    
    #[launch]
    fn rocket() -> _ {
        rocket::build().attach(Logs::init())
    }
    
  4. Use Connection<Type> as a request guard to retrieve an active database connection:

    #[get("/<id>")]
    async fn read(mut db: Connection<Logs>, id: i64) -> Result<Log> {
        sqlx::query!("SELECT content FROM logs WHERE id = ?", id)
            .fetch_one(&mut *db)
            .map_ok(|r| Log(r.content))
            .await
    }