Initial commit, basic graphql server setup

.gitignore

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+/target

Cargo.toml

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+[package]
+name = "city_portal"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+tokio = { version = "1", features = ["full"] }
+axum = "0.8"
+async-graphql = "7"
+async-graphql-axum = "7"

src/main.rs

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+use async_graphql::{EmptyMutation, EmptySubscription, Object, Schema, SimpleObject};
+use async_graphql_axum::{GraphQLRequest, GraphQLResponse};
+use axum::{
+    Router,
+    routing::{get, post},
+};
+use std::net::SocketAddr;
+
+struct QueryRoot;
+
+#[Object]
+impl QueryRoot {
+    async fn hello(&self) -> &str {
+        "Hello, world!"
+    }
+    async fn testing(&self) -> &str {
+        "Testing"
+    }
+    async fn user(&self, id: i32) -> User {
+        User {
+            id,
+            name: String::from("Zeph"),
+        }
+    }
+}
+
+#[derive(SimpleObject)]
+struct User {
+    id: i32,
+    name: String,
+}
+
+#[tokio::main]
+async fn main() {
+    let schema = Schema::build(QueryRoot, EmptyMutation, EmptySubscription).finish();
+
+    let app = Router::new()
+        .route(
+            "/graphql",
+            post({
+                let schema = schema.clone();
+                move |req: GraphQLRequest| async move {
+                    GraphQLResponse::from(schema.execute(req.into_inner()).await)
+                }
+            }),
+        )
+        .route(
+            "/graphql",
+            get({
+                let schema = schema.clone();
+                move || async move { axum::Json(schema.sdl()) }
+            }),
+        );
+
+    let addr = SocketAddr::from(([0, 0, 0, 0], 3000));
+    println!("listening on http://{}", addr);
+
+    axum::serve(
+        tokio::net::TcpListener::bind(addr).await.unwrap(),
+        app.into_make_service(),
+    )
+    .await
+    .unwrap();
+}