tank-postgres 0.44.0

<div align="center">
    <img width="300" height="300" src="../docs/public/logo.png" alt="Tank logo: a circular gold emblem with a military tank and a database symbol" />
</div>

# tank-postgres

`tank-postgres` is the Postgres driver for [Tank](https://crates.io/crates/tank): the Rust data layer.

It maps Tank operations and queries to native Postgres commands. Use it with the main [`tank`](https://crates.io/crates/tank) crate, which provides entity definitions and the query API.

📘 **Docs:** https://tankhq.github.io/tank

🖥️ **Repo:** https://github.com/TankHQ/tank

📦 **Crate:** https://crates.io/crates/tank-postgres

## Features
- Async connection and execution via [`tokio-postgres`](https://crates.io/crates/tokio-postgres)
- TLS via [`postgres-openssl`](https://crates.io/crates/postgres-openssl)
- Fast bulk inserts using the COPY binary protocol

## Install
```sh
cargo add tank
cargo add tank-postgres
```

## Quick Start
```rust
use tank::{ConnectionPool, Driver, PoolConfig};
use tank_postgres::PostgresDriver;

let driver = PostgresDriver::new();
let pool = driver
    .connect_pool(
        "postgres://user:password@127.0.0.1:5432/database?sslmode=require&sslrootcert=root.crt&sslcert=client.crt&sslkey=client.key".into(),
        PoolConfig::new(),
    )
    .await?;
let mut connection = pool.get().await?;
```

Run this inside an async function. The returned connection can execute Tank entity operations.

Certificate filenames are resolved relative to the working directory. Use paths appropriate for your deployment.

## Running Tests
Tests need a Postgres instance. Provide a connection URL via `TANK_POSTGRES_TEST`. If absent, a containerized Postgres will be launched automatically using [testcontainers-modules](https://crates.io/crates/testcontainers-modules).

1. Ensure Docker is running on Linux:
```sh
systemctl status docker
```
2. Add your user to the `docker` group if needed on Linux:
```sh
sudo usermod -aG docker $USER
```

> [!CAUTION]
> Avoid aborting tests mid-run (e.g. killing the process at a breakpoint). Containers might be left running and consume resources.
>
> List containers:
> ```sh
> docker ps
> ```
> Stop container:
> ```sh
> docker kill <container_id_or_name>
> ```