sample(): add interface to config sample (25)

Author: kamilmysliwiec

sample/25-dynamic-modules/src/config/config.module.ts

@@ -1,11 +1,14 @@
 import { DynamicModule, Module } from '@nestjs/common';
-
 import { ConfigService } from './config.service';
 import { CONFIG_OPTIONS } from './constants';
 
+export interface ConfigModuleOptions {
+  folder: string;
+}
+
 @Module({})
 export class ConfigModule {
-  static register(options): DynamicModule {
+  static register(options: ConfigModuleOptions): DynamicModule {
     return {
       module: ConfigModule,
       providers: [

sample/25-dynamic-modules/src/config/config.service.ts

@@ -1,17 +1,15 @@
-import { Injectable, Inject } from '@nestjs/common';
-
+import { Inject, Injectable } from '@nestjs/common';
 import * as dotenv from 'dotenv';
 import * as fs from 'fs';
 import * as path from 'path';
-
-import { EnvConfig, ConfigOptions } from './interfaces';
 import { CONFIG_OPTIONS } from './constants';
+import { ConfigOptions, EnvConfig } from './interfaces';
 
 @Injectable()
 export class ConfigService {
   private readonly envConfig: EnvConfig;
 
-  constructor(@Inject(CONFIG_OPTIONS) private options: ConfigOptions) {
+  constructor(@Inject(CONFIG_OPTIONS) options: ConfigOptions) {
     const filePath = `${process.env.NODE_ENV || 'development'}.env`;
     const envFile = path.resolve(__dirname, '../../', options.folder, filePath);
     this.envConfig = dotenv.parse(fs.readFileSync(envFile));