diff --git a/axumtest/Cargo.lock b/axumtest/Cargo.lock
index 3164176..cb3d47e 100644
--- a/axumtest/Cargo.lock
+++ b/axumtest/Cargo.lock
@@ -113,6 +113,8 @@ dependencies = [
  "clap",
  "dotenv",
  "mongodb",
+ "serde",
+ "serde_json",
  "tokio",
  "tracing",
  "tracing-subscriber",
diff --git a/axumtest/Cargo.toml b/axumtest/Cargo.toml
index e94fb27..faeef37 100644
--- a/axumtest/Cargo.toml
+++ b/axumtest/Cargo.toml
@@ -8,6 +8,8 @@ axum = { version = "0.5.15", features = ["headers"] }
 clap = { version = "3.2.17", features = ["derive", "env"] }
 dotenv = "0.15.0"
 mongodb = "2.3.0"
+serde = { version = "1.0.143", features = ["derive"] }
+serde_json = "1.0.83"
 tokio = { version = "1.20.1", features = ["macros", "rt-multi-thread"] }
 tracing = "0.1.36"
 tracing-subscriber = "0.3.15"
diff --git a/axumtest/src/auth/mod.rs b/axumtest/src/auth/mod.rs
index 510347d..879aaa9 100644
--- a/axumtest/src/auth/mod.rs
+++ b/axumtest/src/auth/mod.rs
@@ -13,9 +13,9 @@ static CIROLE: HeaderName = HeaderName::from_static("x-cirole");
 pub async fn ci_auth<B>(
     req: Request<B>,
     next: Next<B>,
-    expected_usr: &str,
-    expected_pwd: &str,
-    expected_role: &str,
+    expected_usr: String,
+    expected_pwd: String,
+    expected_role: String,
 ) -> Result<Response, StatusCode> {
     let usr = req
         .headers()
diff --git a/axumtest/src/main.rs b/axumtest/src/main.rs
index b6ec2f2..4d112c7 100644
--- a/axumtest/src/main.rs
+++ b/axumtest/src/main.rs
@@ -1,16 +1,12 @@
 mod auth;
-mod headers;
 
 use std::sync::Arc;
 
 use axum::middleware;
 use axum::routing::get;
-use headers::cipwd::CiPwd;
-use headers::cirole::CiRole;
-use headers::ciusr::CiUsr;
+use axum::Json;
 
 use axum::routing::Router;
-use axum::TypedHeader;
 use clap::Parser;
 use dotenv::dotenv;
 use mongodb::options::ClientOptions;
@@ -24,11 +20,18 @@ struct Params {
 
     #[clap(short, long, env = "MONGO_URI")]
     mongo_addr: String,
-}
 
+    #[clap(long, env = "CIUSR")]
+    ci_usr: String,
+
+    #[clap(long, env = "CIPWD")]
+    ci_pwd: String,
+
+    #[clap(long, env = "CIROLE")]
+    ci_role: String,
+}
 struct State {
     db: Database,
-    collections: Vec<String>,
 }
 
 #[tokio::main]
@@ -45,7 +48,9 @@ async fn main() {
     let collections = db.list_collection_names(None).await.unwrap();
     tracing::debug!("Collections = {:?}", &collections);
 
-    let state = Arc::new(State { db, collections });
+    let state = Arc::new(State {
+        db,
+    });
 
     let app = Router::new().route("/", get(index)).route(
         "/collections",
@@ -54,7 +59,11 @@ async fn main() {
             move || get_collections(Arc::clone(&shared_state))
         })
         .route_layer(middleware::from_fn(move |req, next| {
-            auth::ci_auth(req, next, "A", "A", "A")
+            let ci_usr = args.ci_usr.clone();
+            let ci_pwd = args.ci_pwd.clone();
+            let ci_role = args.ci_role.clone();
+
+            auth::ci_auth(req, next, ci_usr, ci_pwd, ci_role)
         })),
     );
 
@@ -65,14 +74,11 @@ async fn main() {
         .unwrap();
 }
 
-async fn index(
-    TypedHeader(usr): TypedHeader<CiUsr>,
-    TypedHeader(_pwd): TypedHeader<CiPwd>,
-    TypedHeader(_role): TypedHeader<CiRole>,
-) -> String {
-    format!("Hellow {}", usr)
+async fn index() -> String {
+    format!("Hellow")
 }
 
-async fn get_collections(state: Arc<State>) -> String {
-    format!("Collections")
+async fn get_collections(state: Arc<State>) -> Json<Vec<String>> {
+    let collections = state.db.list_collection_names(None).await.unwrap();
+    Json(collections)
 }