initial

.gitignore

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+/target

.vscode/launch.json

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+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Debug executable 'colota_backend'",
+            "type": "lldb",
+            "request": "launch",
+            "cargo": {
+                "args": [
+                    "run",
+                    "--bin=colota_backend"
+                ]
+            },
+            "args": []
+        },
+        {
+            "name": "Debug unit tests in executable 'colota_backend'",
+            "type": "lldb",
+            "request": "launch",
+            "cargo": {
+                "args": [
+                    "test",
+                    "--bin=colota_backend"
+                ]
+            }
+        }
+    ]
+}

Cargo.toml

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+[package]
+name = "colota_backend"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
+actix-web = "4.x.x"

src/main.rs

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+use actix_web::{web, App, HttpRequest, HttpServer, Responder};
+
+async fn index() -> impl Responder { "Connection successful" }
+
+#[actix_web::main]
+async fn main() -> std::io::Result<()> {
+    HttpServer::new(|| {
+        App::new()
+            .service(web::resource("/").to(index))
+    })
+    .bind("127.0.0.1:8080")?
+    .run()
+    .await
+}