♻️ refactor: 주가 정보 관련 interface 생성 및 적용 #6

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

@@ -41,7 +41,7 @@ export class StockIndexService {
       },
     });
 
-    const result = await response.json();
+    const result: StockIndexChartInterface = await response.json();
 
     return new StockIndexListElementDto(
       code,
@@ -73,7 +73,7 @@ export class StockIndexService {
       },
     });
 
-    const result = await response.json();
+    const result: StockIndexValueInterface = await response.json();
     return new StockIndexValueElementDto(
       code,
       result.output.bstp_nmix_prpr,
@@ -97,7 +97,7 @@ export class StockIndexService {
           appsecret: process.env.APP_SECRET,
         }),
       });
-      const result = await response.json();
+      const result: AccessTokenInterface = await response.json();
       this.accessToken = result.access_token;
       this.expireDateTime = new Date(
         result.access_token_token_expired,
@@ -108,3 +108,71 @@ export class StockIndexService {
     return this.accessToken;
   }
 }
+
+// interfaces
+
+interface AccessTokenInterface {
+  access_token: string;
+  access_token_token_expired: string;
+  token_type: string;
+  expires_in: number;
+}
+
+interface StockIndexChartInterface {
+  output: StockIndexChartElementInterface[];
+}
+
+interface StockIndexChartElementInterface {
+  bsop_hour: string;
+  bstp_nmix_prpr: string;
+  bstp_nmix_prdy_vrss: string;
+  prdy_vrss_sign: string;
+  bstp_nmix_prdy_ctrt: string;
+  acml_tr_pbmn: string;
+  acml_vol: string;
+  cntg_vol: string;
+}
+
+interface StockIndexValueInterface {
+  output: {
+    bstp_nmix_prpr: string;
+    bstp_nmix_prdy_vrss: string;
+    prdy_vrss_sign: string;
+    bstp_nmix_prdy_ctrt: string;
+    acml_vol: string;
+    prdy_vol: string;
+    acml_tr_pbmn: string;
+    prdy_tr_pbmn: string;
+    bstp_nmix_oprc: string;
+    prdy_nmix_vrss_nmix_oprc: string;
+    oprc_vrss_prpr_sign: string;
+    bstp_nmix_oprc_prdy_ctrt: string;
+    bstp_nmix_hgpr: string;
+    prdy_nmix_vrss_nmix_hgpr: string;
+    hgpr_vrss_prpr_sign: string;
+    bstp_nmix_hgpr_prdy_ctrt: string;
+    bstp_nmix_lwpr: string;
+    prdy_clpr_vrss_lwpr: string;
+    lwpr_vrss_prpr_sign: string;
+    prdy_clpr_vrss_lwpr_rate: string;
+    ascn_issu_cnt: string;
+    uplm_issu_cnt: string;
+    stnr_issu_cnt: string;
+    down_issu_cnt: string;
+    lslm_issu_cnt: string;
+    dryy_bstp_nmix_hgpr: string;
+    dryy_hgpr_vrss_prpr_rate: string;
+    dryy_bstp_nmix_hgpr_date: string;
+    dryy_bstp_nmix_lwpr: string;
+    dryy_lwpr_vrss_prpr_rate: string;
+    dryy_bstp_nmix_lwpr_date: string;
+    total_askp_rsqn: string;
+    total_bidp_rsqn: string;
+    seln_rsqn_rate: string;
+    shnu_rsqn_rate: string;
+    ntby_rsqn: string;
+  };
+  rt_cd: string;
+  msg_cd: string;
+  msg1: string;
+}

BE/src/websocket/socket.service.ts

@@ -24,10 +24,13 @@ export class SocketService implements OnModuleInit {
     };
 
     this.socket.onmessage = (event) => {
-      const data = event.data.toString().split('|');
+      const data =
+        typeof event.data === 'string'
+          ? event.data
+          : JSON.stringify(event.data);
       if (data.length < 2) return;
 
-      this.tradeHandler[data[1]](data[3]);
+      (this.tradeHandler[data[1]] as (data) => void)(data[3]);
     };
   }
 
@@ -58,7 +61,7 @@ export class SocketService implements OnModuleInit {
         secretkey: process.env.APP_SECRET,
       }),
     });
-    const result = await response.json();
+    const result: SocketConnectTokenInterface = await response.json();
     return result.approval_key;
   }
 
@@ -81,3 +84,9 @@ export class SocketService implements OnModuleInit {
     );
   }
 }
+
+// interfaces
+
+interface SocketConnectTokenInterface {
+  approval_key: string;
+}