made backend database url configurable through cli

src/db.rs

@@ -2,9 +2,9 @@ use axum::http::StatusCode;
 use sqlx::PgPool;
 use uuid::Uuid;
 
-pub async fn init_db() -> Result<PgPool, sqlx::Error> {
-    let database_url = "postgres://chatapp:secret@localhost:5432/chatapp";
-    PgPool::connect(database_url).await
+pub async fn init_db(url: String) -> Result<PgPool, sqlx::Error> {
+    let database_url = format!("postgres://chatapp:secret@{url}/chatapp");
+    PgPool::connect(database_url.as_str()).await
 }
 
 pub async fn user_id_from_uuid(db: &PgPool, user_uuid: Uuid) -> Result<i32, (StatusCode, String)> {

src/main.rs

@@ -29,6 +29,10 @@ pub struct Cli {
     #[arg(short, long, default_value = "8080")]
     port: String,
 
+    /// Database URL
+    #[arg(short, long, default_value = "localhost:5432")]
+    database: String,
+
     /// Verbose mode
     #[arg(short, long)]
     verbose: bool,
@@ -43,7 +47,7 @@ async fn main() -> anyhow::Result<()> {
         .init();
 
     tracing::info!("Connecting to database...");
-    let db_pool = db::init_db().await?;
+    let db_pool = db::init_db(cli.database).await?;
 
     let cors = CorsLayer::new()
         .allow_origin(Any)