Fix Federation schema throws error while using multiple Option inputs #211

async-graphql-derive/src/object.rs

@@ -489,7 +489,7 @@ pub fn generate(object_args: &args::Object, item_impl: &mut ItemImpl) -> Result<
         }
 
         #[allow(clippy::all, clippy::pedantic, clippy::suspicious_else_formatting)]
-        #[allow(unused_braces, unused_variables)]
+        #[allow(unused_braces, unused_variables, unused_parens)]
         #[#crate_name::async_trait::async_trait]
         impl#generics #crate_name::ObjectType for #self_ty #where_clause {
             async fn resolve_field(&self, ctx: &#crate_name::Context<'_>) -> #crate_name::Result<#crate_name::serde_json::Value> {

src/registry.rs

@@ -431,7 +431,7 @@ impl Registry {
                         .args
                         .values()
                         .map(|arg| federation_input_value(arg))
-                        .join(""),
+                        .join(", "),
                     field.ty
                 )
                 .ok();