🔧 fix: getAccessToken 로직 오류 수정

BE/src/koreaInvestment/interface/korea.investment.interface.ts

@@ -0,0 +1,6 @@
+export interface AccessTokenInterface {
+  access_token: string;
+  access_token_token_expired: string;
+  token_type: string;
+  expires_in: number;
+}

BE/src/koreaInvestment/korea.investment.service.ts

@@ -1,6 +1,7 @@
 import axios from 'axios';
 import { UnauthorizedException } from '@nestjs/common';
 import { getFullURL } from '../util/getFullURL';
+import { AccessTokenInterface } from './interface/korea.investment.interface';
 
 export class KoreaInvestmentService {
   private accessToken: string;
@@ -12,19 +13,19 @@ export class KoreaInvestmentService {
       return this.accessToken;
     }
     const response = await axios
-      .post(getFullURL('/oauth2/tokenP'), {
+      .post<AccessTokenInterface>(getFullURL('/oauth2/tokenP'), {
         grant_type: 'client_credentials',
         appkey: process.env.KOREA_INVESTMENT_APP_KEY,
         appsecret: process.env.KOREA_INVESTMENT_APP_SECRET,
       })
-      .catch((err) => {
+      .catch(() => {
         throw new UnauthorizedException('액세스 토큰을 조회하지 못했습니다.');
       });
 
     const { data } = response;
 
     this.accessToken = data.access_token;
-    this.tokenExpireTime = new Date(Date.now() + +data.expires_in);
+    this.tokenExpireTime = new Date(data.access_token_token_expired);
 
     return this.accessToken;
   }

BE/src/stock/index/stock.index.service.ts

@@ -59,7 +59,7 @@ export class StockIndexService {
           },
         },
       )
-      .catch((err) => {
+      .catch(() => {
         throw new InternalServerErrorException(
           '주가 지수 차트 정보를 조회하지 못했습니다.',
         );
@@ -83,7 +83,7 @@ export class StockIndexService {
           },
         },
       )
-      .catch((err) => {
+      .catch(() => {
         throw new InternalServerErrorException(
           '주가 지수 값 정보를 조회하지 못했습니다.',
         );