Updating logger to display timestamp

src/common/logger.ts

@@ -1,4 +1,5 @@
 import { AsyncLocalStorage } from 'async_hooks'
+import dayjs from './dayjs'
 
 export enum LogLevel {
   DEBUG,
@@ -42,8 +43,9 @@ export class Logger {
         break
     }
 
-    let fmtString = '<%s> [%s] %s: %s'
+    let fmtString = '(%s) <%s> [%s] %s: %s'
     const params: Array<unknown> = [
+      dayjs().format(),
       this.tag,
       this.correlationId,
       levelString,

tests/unit/common/logger.test.ts

@@ -1,5 +1,8 @@
+import dayjs from '../../../src/common/dayjs'
 import { Logger, LogLevel } from '../../../src/common/logger'
 
+jest.useFakeTimers().setSystemTime(new Date('2023-01-01'))
+
 describe('Logger', () => {
   beforeEach(() => {
     jest.resetAllMocks()
@@ -19,7 +22,8 @@ describe('Logger', () => {
     expect(consoleLogSpy).toHaveBeenCalledTimes(2)
     expect(consoleLogSpy).toHaveBeenNthCalledWith(
       1,
-      '<%s> [%s] %s: %s',
+      '(%s) <%s> [%s] %s: %s',
+      dayjs().format(),
       'tag',
       'abc',
       'DEBUG',
@@ -27,7 +31,8 @@ describe('Logger', () => {
     )
     expect(consoleLogSpy).toHaveBeenNthCalledWith(
       2,
-      '<%s> [%s] %s: %s',
+      '(%s) <%s> [%s] %s: %s',
+      dayjs().format(),
       'tag',
       'abc',
       'INFO',
@@ -35,7 +40,8 @@ describe('Logger', () => {
     )
     expect(consoleErrorSpy).toHaveBeenCalledTimes(1)
     expect(consoleErrorSpy).toHaveBeenCalledWith(
-      '<%s> [%s] %s: %s - %O',
+      '(%s) <%s> [%s] %s: %s - %O',
+      dayjs().format(),
       'tag',
       'abc',
       'ERROR',
@@ -66,7 +72,8 @@ describe('Logger', () => {
     expect(consoleLogSpy).toHaveBeenCalledTimes(1)
     expect(consoleLogSpy).toHaveBeenNthCalledWith(
       1,
-      '<%s> [%s] %s: %s - %O',
+      '(%s) <%s> [%s] %s: %s - %O',
+      dayjs().format(),
       'tag',
       'abc',
       'INFO',