now with dynamic counter too

count/Cargo.lock

@@ -219,6 +219,7 @@ checksum = "773648b94d0e5d620f64f280777445740e61fe701025087ec8b57f45c791888b"
 name = "count"
 version = "0.1.0"
 dependencies = [
+ "http",
  "poem",
  "poem-openapi",
  "tokio",

count/Cargo.toml

@@ -4,6 +4,7 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
+http = "1.2.0"
 poem = "3"
 poem-openapi = { version = "5", features = ["swagger-ui"] }
 tokio = { version = "1", features = ["macros", "rt-multi-thread"] }

count/src/main.rs

@@ -1,9 +1,10 @@
 use std::sync::atomic::{AtomicU32, Ordering};
 
-use poem_openapi::payload::PlainText;
+use poem_openapi::payload::{Response, PlainText};
 use poem_openapi::{OpenApi, OpenApiService};
-use poem::{Route, Server};
+use poem::{EndpointExt, Route, Server};
 use poem::listener::TcpListener;
+use poem::middleware::Cors;
 
 pub struct CounterApi {
     counter: AtomicU32,
@@ -18,6 +19,7 @@ impl CounterApi {
         }
     }
 
+
     #[oai(path = "/next", method = "get")]
     pub async fn next(&self) -> PlainText<String> {
         let next = self.counter.fetch_add(1, Ordering::Relaxed);
@@ -31,6 +33,7 @@ impl CounterApi {
 
         PlainText(format!("{{\"count\":{next}}}"))
     }
+
 }
 
 #[tokio::main]
@@ -38,7 +41,7 @@ async fn main() {
     let api_service =
         OpenApiService::new(CounterApi::new(), "counter", "1.0").server("http://localhost:9000");
     let ui = api_service.swagger_ui();
-    let app = Route::new().nest("/", api_service).nest("/docs", ui);
+    let app = Route::new().nest("/", api_service).nest("/docs", ui).with(Cors::new());
 
     Server::new(TcpListener::bind("127.0.0.1:9000"))
         .run(app)