Add httapi server

did_router/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "did_router"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+actix-web = "4"

did_router/src/main.rs

@@ -0,0 +1,28 @@
+use actix_web::{get, post, web, App, HttpResponse, HttpServer, Responder};
+
+#[get("/")]
+async fn hello() -> impl Responder {
+    HttpResponse::Ok().body("Hello world!")
+}
+
+#[post("/echo")]
+async fn echo(req_body: String) -> impl Responder {
+    HttpResponse::Ok().body(req_body)
+}
+
+async fn manual_hello() -> impl Responder {
+    HttpResponse::Ok().body("Hey there!")
+}
+
+#[actix_web::main]
+async fn main() -> std::io::Result<()> {
+    HttpServer::new(|| {
+        App::new()
+            .service(hello)
+            .service(echo)
+            .route("/hey", web::get().to(manual_hello))
+    })
+        .bind(("127.0.0.1", 8080))?
+        .run()
+        .await
+}