대충이런느낌

server/api/Login/LoginByID.ts

@@ -1,24 +1,55 @@
-import { POST } from "../defs";
+import { POST, ngPOST } from "../defs";
 import type { structure } from "../../apiStructure/sammoRootAPI";
 import type { ExtractError, ExtractQuery, ExtractResponse } from "../../apiStructure/defs";
+import { StartSession } from "../ProcDecorator/StartSession";
+import { IsString } from "class-validator";
+import { delay } from "../../util/delay";
 
 type BaseAPI = typeof structure.Login.LoginByID;
 type RType = ExtractResponse<BaseAPI>;
 type EType = ExtractError<BaseAPI>;
 type QType = ExtractQuery<BaseAPI>;
-
-class Q implements QType {
+class ArgValidator implements QType {
+    @IsString()
     username!: string;
+    @IsString()
     password!: string;
 }
+const procDecorator = [
+    StartSession,
+] as const;
 
-const procDecorator = [] as const;
+export const LoginByID = ngPOST<RType, EType, QType>(ArgValidator)(procDecorator)(
+    async (query, ctx, req, res) => {
+        const username = query.username;
+        const password = query.password;
 
-export class LoginByID extends POST<RType, EType, QType, typeof procDecorator>{
-    readonly argValidator = Q;
-    readonly procDecorator = procDecorator;
-    protected LoginByID = Symbol("LoginByID");//TODO: remove this
-    protected override async api(query: QType, ctx,): Promise<RType | EType | true> {
-        throw new Error("Method not implemented.");
+        //TODO: DB에서 뭔가 가져와야 함
+        await delay(1);
+
+        if(Math.random() < 0.3){
+            return {
+                result: false,
+                reason: "로그인 실패",
+                reqOTP: false,
+            }
+        }
+
+        if(Math.random() < 0.5){
+            return {
+                result: false,
+                reason: "OTP 인증 필요",
+                reqOTP: true,
+            }
+        }
+
+        const userID = 1;
+        const nextToken: [number, string] = [1, "1234567890"];
+
+        await ctx.setValue("userID", userID);
+        return {
+            result: true,
+            nextToken,
+        }
     }
-}
+);