diff --git a/server/api/Login/index.ts b/server/api/Login/index.ts
index 31b12e4..5ee8352 100644
--- a/server/api/Login/index.ts
+++ b/server/api/Login/index.ts
@@ -3,9 +3,11 @@ import type { APINamespaceType } from "../defs";
 import { LoginByID } from "./LoginByID";
 import { LoginByToken } from "./LoginByToken";
 import { ReqNonce } from "./ReqNonce";
+import { test } from "./test";
 
 export const Login = {
     LoginByID,
     LoginByToken,
     ReqNonce,
+    test,
 } satisfies APINamespaceType<typeof structure.Login>;
\ No newline at end of file
diff --git a/server/api/Login/test.ts b/server/api/Login/test.ts
new file mode 100644
index 0000000..006096e
--- /dev/null
+++ b/server/api/Login/test.ts
@@ -0,0 +1,18 @@
+import { GET } from "../defs";
+import type { structure } from "../../apiStructure/sammoRootAPI";
+import type { ExtractError, ExtractQuery, ExtractResponse } from "../../apiStructure/defs";
+
+type BaseAPI = typeof structure.Login.test;
+type RType = ExtractResponse<BaseAPI>;
+type EType = ExtractError<BaseAPI>;
+type QType = ExtractQuery<BaseAPI>;
+
+export class test extends GET<RType, EType, QType>{
+    protected ReqNonce = Symbol("ReqNonce");//TODO: remove this
+    protected override async api(query: QType): Promise<RType | EType | true> {
+        return {
+            hello: "world",
+            result: true,
+        }
+    }
+}
\ No newline at end of file
diff --git a/server/apiStructure/defs.ts b/server/apiStructure/defs.ts
index ebc30fc..d91f6b2 100644
--- a/server/apiStructure/defs.ts
+++ b/server/apiStructure/defs.ts
@@ -136,18 +136,18 @@ export type HeadAPICallT<
 export type APITail = ReturnType<typeof GET> | ReturnType<typeof POST> | ReturnType<typeof PUT> | ReturnType<typeof DELETE> | ReturnType<typeof PATCH> | ReturnType<typeof HEAD>;
 
 export function GET<
-    ResultType extends ValidResponse,
-    ErrorType extends InvalidResponse,
+    ResultType extends ValidResponse = ValidResponse,
+    ErrorType extends InvalidResponse = InvalidResponse,
 >(): EmptyGetAPICallT<ResultType, ErrorType>
 export function GET<
     ArgType extends RawArgType,
-    ResultType extends ValidResponse,
-    ErrorType extends InvalidResponse,
+    ResultType extends ValidResponse = ValidResponse,
+    ErrorType extends InvalidResponse = InvalidResponse,
 >(): BasicGetAPICallT<ArgType, ResultType, ErrorType>;
 export function GET<
     ArgType extends RawArgType,
-    ResultType extends ValidResponse,
-    ErrorType extends InvalidResponse,
+    ResultType extends ValidResponse = ValidResponse,
+    ErrorType extends InvalidResponse = InvalidResponse,
 >(): BasicGetAPICallT<ArgType, ResultType, ErrorType> | EmptyGetAPICallT<ResultType, ErrorType> {
     return Object.assign(
         fakeGET,
@@ -156,18 +156,18 @@ export function GET<
 }
 
 export function POST<
-    ResultType extends ValidResponse,
-    ErrorType extends InvalidResponse,
+    ResultType extends ValidResponse = ValidResponse,
+    ErrorType extends InvalidResponse = InvalidResponse,
 >(): EmptyPostAPICallT<ResultType, ErrorType>
 export function POST<
     ArgType extends RawArgType,
-    ResultType extends ValidResponse,
-    ErrorType extends InvalidResponse,
+    ResultType extends ValidResponse = ValidResponse,
+    ErrorType extends InvalidResponse = InvalidResponse,
 >(): BasicPostAPICallT<ArgType, ResultType, ErrorType>;
 export function POST<
     ArgType extends RawArgType,
-    ResultType extends ValidResponse,
-    ErrorType extends InvalidResponse,
+    ResultType extends ValidResponse = ValidResponse,
+    ErrorType extends InvalidResponse = InvalidResponse,
 >(): BasicPostAPICallT<ArgType, ResultType, ErrorType> | EmptyPostAPICallT<ResultType, ErrorType> {
     return Object.assign(
         fakePOST,
@@ -176,18 +176,18 @@ export function POST<
 }
 
 export function PUT<
-    ResultType extends ValidResponse,
-    ErrorType extends InvalidResponse,
+    ResultType extends ValidResponse = ValidResponse,
+    ErrorType extends InvalidResponse = InvalidResponse,
 >(): EmptyPutAPICallT<ResultType, ErrorType>
 export function PUT<
     ArgType extends RawArgType,
-    ResultType extends ValidResponse,
-    ErrorType extends InvalidResponse,
+    ResultType extends ValidResponse = ValidResponse,
+    ErrorType extends InvalidResponse = InvalidResponse,
 >(): BasicPutAPICallT<ArgType, ResultType, ErrorType>;
 export function PUT<
     ArgType extends RawArgType,
-    ResultType extends ValidResponse,
-    ErrorType extends InvalidResponse,
+    ResultType extends ValidResponse = ValidResponse,
+    ErrorType extends InvalidResponse = InvalidResponse,
 >(): BasicPutAPICallT<ArgType, ResultType, ErrorType> | EmptyPutAPICallT<ResultType, ErrorType> {
     return Object.assign(
         fakePUT,
@@ -196,18 +196,18 @@ export function PUT<
 }
 
 export function DELETE<
-    ResultType extends ValidResponse,
-    ErrorType extends InvalidResponse,
+    ResultType extends ValidResponse = ValidResponse,
+    ErrorType extends InvalidResponse = InvalidResponse,
 >(): EmptyDeleteAPICallT<ResultType, ErrorType>
 export function DELETE<
     ArgType extends RawArgType,
-    ResultType extends ValidResponse,
-    ErrorType extends InvalidResponse,
+    ResultType extends ValidResponse = ValidResponse,
+    ErrorType extends InvalidResponse = InvalidResponse,
 >(): BasicDeleteAPICallT<ArgType, ResultType, ErrorType>;
 export function DELETE<
     ArgType extends RawArgType,
-    ResultType extends ValidResponse,
-    ErrorType extends InvalidResponse,
+    ResultType extends ValidResponse = ValidResponse,
+    ErrorType extends InvalidResponse = InvalidResponse,
 >(): BasicDeleteAPICallT<ArgType, ResultType, ErrorType> | EmptyDeleteAPICallT<ResultType, ErrorType> {
     return Object.assign(
         fakeDELETE,
@@ -216,18 +216,18 @@ export function DELETE<
 }
 
 export function PATCH<
-    ResultType extends ValidResponse,
-    ErrorType extends InvalidResponse,
+    ResultType extends ValidResponse = ValidResponse,
+    ErrorType extends InvalidResponse = InvalidResponse,
 >(): EmptyPatchAPICallT<ResultType, ErrorType>
 export function PATCH<
     ArgType extends RawArgType,
-    ResultType extends ValidResponse,
-    ErrorType extends InvalidResponse,
+    ResultType extends ValidResponse = ValidResponse,
+    ErrorType extends InvalidResponse = InvalidResponse,
 >(): BasicPatchAPICallT<ArgType, ResultType, ErrorType>;
 export function PATCH<
     ArgType extends RawArgType,
-    ResultType extends ValidResponse,
-    ErrorType extends InvalidResponse,
+    ResultType extends ValidResponse = ValidResponse,
+    ErrorType extends InvalidResponse = InvalidResponse,
 >(): BasicPatchAPICallT<ArgType, ResultType, ErrorType> | EmptyPatchAPICallT<ResultType, ErrorType> {
     return Object.assign(
         fakePATCH,
@@ -236,18 +236,18 @@ export function PATCH<
 }
 
 export function HEAD<
-    ResultType extends ValidResponse,
-    ErrorType extends InvalidResponse,
+    ResultType extends ValidResponse = ValidResponse,
+    ErrorType extends InvalidResponse = InvalidResponse,
 >(): EmptyHeadAPICallT<ResultType, ErrorType>
 export function HEAD<
     ArgType extends RawArgType,
-    ResultType extends ValidResponse,
-    ErrorType extends InvalidResponse,
+    ResultType extends ValidResponse = ValidResponse,
+    ErrorType extends InvalidResponse = InvalidResponse,
 >(): BasicHeadAPICallT<ArgType, ResultType, ErrorType>;
 export function HEAD<
     ArgType extends RawArgType,
-    ResultType extends ValidResponse,
-    ErrorType extends InvalidResponse,
+    ResultType extends ValidResponse = ValidResponse,
+    ErrorType extends InvalidResponse = InvalidResponse,
 >(): BasicHeadAPICallT<ArgType, ResultType, ErrorType> | EmptyHeadAPICallT<ResultType, ErrorType> {
     return Object.assign(
         fakeHEAD,
diff --git a/server/apiStructure/sammoRootAPI.ts b/server/apiStructure/sammoRootAPI.ts
index 364a39b..21363ed 100644
--- a/server/apiStructure/sammoRootAPI.ts
+++ b/server/apiStructure/sammoRootAPI.ts
@@ -40,6 +40,7 @@ export const structure = {
             hashedToken: string,
             token_id: number,
         }, AutoLoginResponse, AutoLoginFailed>(),
-        ReqNonce: GET<AutoLoginNonceResponse, AutoLoginFailed>()
+        ReqNonce: GET<AutoLoginNonceResponse, AutoLoginFailed>(),
+        test: GET<{result: true, hello:'world'}>(),
     },
 } satisfies DefAPINamespace;
\ No newline at end of file