Rewrite the use of unwrap() to use Result<>

.gitignore

@@ -1,6 +1,8 @@
 # my gitignore
 todo.md
 .env
+trash/
+.cargo/
 
 # ---> Rust
 # Generated by Cargo

Cargo.lock

@@ -31,9 +31,9 @@ checksum = "c08606f8c3cbf4ce6ec8e28fb0014a2c086708fe954eaa885384a6165172e7e8"
 
 [[package]]
 name = "axum"
-version = "0.8.6"
+version = "0.8.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a18ed336352031311f4e0b4dd2ff392d4fbb370777c9d18d7fc9d7359f73871"
+checksum = "5b098575ebe77cb6d14fc7f32749631a6e44edbef6b796f89b020e99ba20d425"
 dependencies = [
  "axum-core",
  "bytes",

Cargo.toml

@@ -4,7 +4,7 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
-axum = "0.8.6"
+axum = "0.8.7"
 dotenvy = "0.15.7"
 serde = { version = "1.0.228", features = ["derive"] }
 sqlx = { version = "0.8.6", features = ["postgres", "runtime-tokio"] }

compose.yaml

@@ -1,5 +1,5 @@
 services:
-  database:
+  postgres:
     image: docker.io/postgres:17
     environment:
       POSTGRES_DB: ${POSTGRES_DB}
@@ -7,3 +7,7 @@ services:
       POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
     ports:
       - ${POSTGRES_PORT}:5432
+  adminer:
+    image: docker.io/adminer
+    ports:
+      - 8080:8080

migrations/20251113124629_initial.down.sql

@@ -1,2 +1 @@
--- Add down migration script here
 DROP TABLE games;

migrations/20251113124629_initial.up.sql

@@ -1,5 +1,3 @@
--- Add up migration script here
-
 CREATE TABLE games(
     id SERIAL PRIMARY KEY,
     name TEXT NOT NULL,

src/database.rs

@@ -1,28 +1,25 @@
+use sqlx::PgPool;
 use std::env;
 
-use sqlx::PgPool;
-
-pub async fn create_pool() -> PgPool {
-    PgPool::connect(&database_url())
-        .await
-        .expect("Could not connect to database")
+pub async fn create_pool() -> Result<PgPool, axum::BoxError> {
+    PgPool::connect(&database_url()?).await.map_err(Into::into)
 }
 
-fn database_url() -> String {
+fn database_url() -> Result<String, axum::BoxError> {
     let _ = dotenvy::dotenv();
     let database_url = format!(
         "postgres://{}:{}@{}:{}/{}",
-        env::var("POSTGRES_USER").unwrap(),
-        env::var("POSTGRES_PASSWORD").unwrap(),
-        env::var("POSTGRES_HOST").unwrap(),
-        env::var("POSTGRES_PORT").unwrap(),
-        env::var("POSTGRES_DB").unwrap(),
+        env::var("POSTGRES_USER")?,
+        env::var("POSTGRES_PASSWORD")?,
+        env::var("POSTGRES_HOST")?,
+        env::var("POSTGRES_PORT")?,
+        env::var("POSTGRES_DB")?,
     );
 
-    if database_url != env::var("DATABASE_URL").unwrap() {
-        panic!("DATABASE_URL is not set correctly");
+    if database_url != env::var("DATABASE_URL")? {
+        return Err("DATABASE_URL is not set correctly".into());
     }
 
-    println!("DATABASE_URL={database_url}");
-    database_url
+    println!("DATABASE_URL={}", database_url);
+    Ok(database_url)
 }

src/main.rs

@@ -1,3 +1,4 @@
+#![warn(clippy::unwrap_used, clippy::expect_used, clippy::panic)]
 use tokio::net::TcpListener;
 
 mod app_state;
@@ -8,17 +9,19 @@ mod router;
 use app_state::AppState;
 
 #[tokio::main]
-async fn main() {
+async fn main() -> Result<(), axum::BoxError> {
     let state = AppState {
-        pool: database::create_pool().await,
+        pool: database::create_pool().await?,
     };
 
-    sqlx::migrate!().run(&state.pool).await.unwrap();
+    sqlx::migrate!().run(&state.pool).await?;
 
     let addr = "127.0.0.1:8000";
-    let listener = TcpListener::bind(addr).await.unwrap();
+    let listener = TcpListener::bind(addr).await?;
 
     println!("Listening at {addr}");
 
-    axum::serve(listener, router::router(state)).await.unwrap();
+    axum::serve(listener, router::router(state)).await?;
+
+    Ok(())
 }

src/router.rs

@@ -3,7 +3,7 @@ use axum::routing::{get, post};
 use axum::{
     Json,
     extract::{Path, State},
-    response::IntoResponse,
+    http::StatusCode,
 };
 
 use crate::app_state::AppState;
@@ -16,19 +16,19 @@ pub fn router(state: AppState) -> axum::Router {
         .with_state(state)
 }
 
-pub async fn games_list(State(state): State<AppState>) -> impl IntoResponse {
+pub async fn games_list(State(state): State<AppState>) -> Result<Json<Vec<Game>>, StatusCode> {
     let games: Vec<Game> = sqlx::query_file_as!(Game, "queries/get_all.sql")
         .fetch_all(&state.pool)
         .await
-        .unwrap();
+        .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?;
 
-    Json(games)
+    Ok(Json(games))
 }
 
 pub async fn insert_game(
     State(state): State<AppState>,
     Json(game): Json<CreateGame>,
-) -> impl IntoResponse {
+) -> Result<StatusCode, StatusCode> {
     sqlx::query_file!(
         "queries/insert.sql",
         game.name,
@@ -40,16 +40,16 @@ pub async fn insert_game(
     )
     .execute(&state.pool)
     .await
-    .unwrap();
+    .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?;
 
-    axum::http::StatusCode::CREATED
+    Ok(StatusCode::CREATED)
 }
 
 pub async fn update_game(
     State(state): State<AppState>,
     Path(params): Path<GamePathParams>,
     Json(game): Json<CreateGame>,
-) -> impl IntoResponse {
+) -> Result<StatusCode, StatusCode> {
     sqlx::query_file!(
         "queries/update.sql",
         game.name,
@@ -62,14 +62,19 @@ pub async fn update_game(
     )
     .execute(&state.pool)
     .await
-    .unwrap();
+    .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?;
+
+    Ok(StatusCode::OK)
 }
 
-pub async fn delete_game(State(state): State<AppState>, Path(id): Path<i32>) -> impl IntoResponse {
+pub async fn delete_game(
+    State(state): State<AppState>,
+    Path(id): Path<i32>,
+) -> Result<StatusCode, StatusCode> {
     sqlx::query_file!("queries/delete.sql", id)
         .execute(&state.pool)
         .await
-        .unwrap();
+        .map_err(|_| StatusCode::INTERNAL_SERVER_ERROR)?;
 
-    axum::http::StatusCode::OK
+    Ok(StatusCode::OK)
 }