feature(@nestjs/core) add useLogger() to Nest context nestjs#926

Author: kamilmysliwiec

packages/common/interfaces/nest-application-context.interface.ts

@@ -1,3 +1,4 @@
+import { LoggerService } from './../services/logger.service';
 import { Type } from './type.interface';
 
 export interface INestApplicationContext {
@@ -18,8 +19,13 @@ export interface INestApplicationContext {
 
   /**
    * Terminates the application
-   *
    * @returns {Promise<void>}
    */
   close(): Promise<void>;
+
+  /**
+   * Sets custom logger service
+   * @returns {void}
+   */
+  useLogger(logger: LoggerService);
 }

packages/core/nest-application-context.ts

@@ -1,5 +1,7 @@
 import {
   INestApplicationContext,
+  Logger,
+  LoggerService,
   OnModuleDestroy,
   OnModuleInit,
 } from '@nestjs/common';
@@ -64,6 +66,10 @@ export class NestApplicationContext extends ModuleRef
     await this.callDestroyHook();
   }
 
+  public useLogger(logger: LoggerService) {
+    Logger.overrideLogger(logger);
+  }
+
   protected async callInitHook(): Promise<any> {
     const modules = this.container.getModules();
     await Promise.all(

packages/core/nest-factory.ts

@@ -175,7 +175,7 @@ export class NestFactoryStatic {
   }
 
   private applyLogger(options: NestApplicationContextOptions | undefined) {
-    if (!options || !options.logger) {
+    if (!options) {
       return;
     }
     Logger.overrideLogger(options.logger);