add index route

src/router.rs

@@ -1,9 +1,10 @@
 use axum::{extract::DefaultBodyLimit, routing::get, routing::post, Router};
 
-use crate::routes::{health::health_route, liquid::liquid_rescale_route};
+use crate::routes::{health::health_route, index::index_route, liquid::liquid_rescale_route};
 
 pub fn create_router() -> Router {
     Router::new()
+        .route("/", get(index_route))
         .route("/health", get(health_route))
         .route("/liquid", post(liquid_rescale_route))
         .layer(DefaultBodyLimit::max(1024 * 10_000 /* 10 MiB */))

src/routes/index.rs

@@ -0,0 +1,12 @@
+use axum::{response::IntoResponse, Json};
+use serde_json::json;
+
+pub async fn index_route() -> impl IntoResponse {
+    let data = json!({
+        "name": "liquid-rescale-api",
+        "version": env!("CARGO_PKG_VERSION"),
+        "about": "Welcome traveler!"
+    });
+
+    Json(data)
+}

src/routes/mod.rs

@@ -1,2 +1,3 @@
 pub mod health;
+pub mod index;
 pub mod liquid;