### Handle Azure Firewall Redirects with Tiberius

Source: https://github.com/prisma/tiberius/blob/main/README.md

Use this code to establish a connection to a SQL Server, handling potential routing errors by redirecting to a new host and port. Ensure you have the necessary dependencies like `tiberius` and `tokio`.

```rust
use tiberius::{Client, Config, AuthMethod, error::Error};
use tokio_util::compat::TokioAsyncWriteCompatExt;
use tokio::net::TcpStream;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let mut config = Config::new();

    config.host("0.0.0.0");
    config.port(1433);
    config.authentication(AuthMethod::sql_server("SA", "<Mys3cureP4ssW0rD>"));

    let tcp = TcpStream::connect(config.get_addr()).await?;
    tcp.set_nodelay(true)?;

    let client = match Client::connect(config, tcp.compat_write()).await {
        // Connection successful.
        Ok(client) => client,
        // The server wants us to redirect to a different address
        Err(Error::Routing { host, port }) => {
            let mut config = Config::new();

            config.host(&host);
            config.port(port);
            config.authentication(AuthMethod::sql_server("SA", "<Mys3cureP4ssW0rD>"));

            let tcp = TcpStream::connect(config.get_addr()).await?;
            tcp.set_nodelay(true)?;

            // we should not have more than one redirect, so we'll short-circuit here.
            Client::connect(config, tcp.compat_write()).await?
        }
        Err(e) => Err(e)?,
    };

    Ok(())
}
```

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