router: no need to use Fn (fn also works for static closures)

src/api/router.rs

@@ -8,7 +8,7 @@ pub struct ApiMethod {
     pub description: &'static str,
     pub parameters: Schema,
     pub returns: Schema,
-    pub handler: Box<Fn(Value, &ApiMethod) -> Result<Value, Error> + Send + Sync>,
+    pub handler: fn(Value, &ApiMethod) -> Result<Value, Error>,
 }
 
 pub enum SubRoute {

src/api/server.rs

@@ -181,7 +181,7 @@ fn handle_sync_api_request(
             tokio::spawn(task);
              */
 
-            let res = (*info.handler)(params, info)?;
+            let res = (info.handler)(params, info)?;
 
             Ok(res)
 

src/api3.rs

@@ -32,16 +32,16 @@ pub fn router() -> Router {
             description: "Another Endpoint.",
             parameters: parameter!{},
             returns: Schema::Null,
-            handler: Box::new(|param, _info| {
+            handler: |param, _info| {
                 println!("This is a clousure handler: {}", param);
 
                 Ok(json!(null))
-           })
+           },
         });
 
     let route2 = Router::new()
         .get(ApiMethod {
-            handler: Box::new(test_sync_api_handler),
+            handler: test_sync_api_handler,
             description: "This is a simple test.",
             parameters: parameter!{
                 force => Boolean!{