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58 lines
1.7 KiB
Markdown
58 lines
1.7 KiB
Markdown
# `sync_db_pools` [![ci.svg]][ci] [![crates.io]][crate] [![docs.svg]][crate docs]
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[crates.io]: https://img.shields.io/crates/v/rocket_sync_db_pools.svg
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[crate]: https://crates.io/crates/rocket_sync_db_pools
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[docs.svg]: https://img.shields.io/badge/web-master-red.svg?style=flat&label=docs&colorB=d33847
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[crate docs]: https://api.rocket.rs/v0.5-rc/rocket_sync_db_pools
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[ci.svg]: https://github.com/SergioBenitez/Rocket/workflows/CI/badge.svg
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[ci]: https://github.com/SergioBenitez/Rocket/actions
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This crate provides traits, utilities, and a procedural macro for configuring
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and accessing database connection pools in Rocket. This implementation is backed
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by [`r2d2`] and exposes connections through request guards.
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[`r2d2`]: https://docs.rs/r2d2
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## Usage
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First, enable the feature corresponding to your database type:
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```toml
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[dependencies.rocket_sync_db_pools]
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version = "0.1.0-rc.1"
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features = ["diesel_sqlite_pool"]
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```
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A full list of supported databases and their associated feature names is
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available in the [crate docs]. In whichever configuration source you choose,
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configure a `databases` dictionary with a key for each database, here
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`sqlite_logs` in a TOML source:
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```toml
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[default.databases]
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sqlite_logs = { url = "/path/to/database.sqlite" }
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```
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In your application's source code:
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```rust
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#[macro_use] extern crate rocket;
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use rocket_sync_db_pools::{database, diesel};
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#[database("sqlite_logs")]
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struct LogsDbConn(diesel::SqliteConnection);
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#[get("/logs/<id>")]
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async fn get_logs(conn: LogsDbConn, id: usize) -> Result<Logs> {
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conn.run(|c| Logs::by_id(c, id)).await
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}
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#[launch]
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fn rocket() -> _ {
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rocket::build().attach(LogsDbConn::fairing())
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}
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```
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See the [crate docs] for full details.
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