feat: write "ok" endpoint

The test passes while it's running in the background

Cargo.toml

@@ -11,6 +11,7 @@ authors = ["Jason Ribble <[email protected]>"]
 [dependencies]
 anyhow = "1.0.86"
 async-trait = "0.1.80"
+axum = "0.7.7"
 chrono = "0.4.38"
 clap = { version = "4.5.9", features = ["derive"] }
 dotenvy = "0.15.0"
@@ -29,6 +30,10 @@ reqwest = { version = "0.12", features = ["json"] }
 name = "nbd-cli"
 path = "src/cli/main.rs"
 
+[[bin]]
+name = "nbd-api"
+path = "src/api/main.rs"
+
 [lib]
 name = "nbd"
 path = "src/lib.rs"

src/api/main.rs

@@ -0,0 +1,28 @@
+#![allow(dead_code)]
+use axum::{routing::get, Router};
+
+#[tokio::main]
+
+async fn main() {
+    // build our application with a single route
+    let app = Router::new().route("/ok", get(ok));
+
+    // run our app with hyper, listening globally on port 8080
+    let listener = tokio::net::TcpListener::bind("0.0.0.0:8080").await.unwrap();
+    axum::serve(listener, app).await.unwrap();
+}
+
+async fn ok() -> String {
+    "ok".to_string()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[tokio::test]
+    async fn test_ok_endpoint() {
+        let response = ok().await;
+        assert_eq!(response, "ok");
+    }
+}

src/api/mod.rs

@@ -0,0 +1 @@
+mod main;

src/lib.rs

@@ -1,3 +1,4 @@
+pub mod api;
 pub mod db;
 pub mod models;
 pub mod utils;