use configuration files during runtime

src/app.module.ts

@@ -16,7 +16,7 @@ import Configuration from './config/configuration';
       inject: [ConfigService],
       useFactory: async (config: ConfigService) => ({
         uri: `mongodb://${config.get<string>(
-          'database.url',
+          'database.host',
         )}:${config.get<number>('database.port')}/${config.get<string>(
           'database.name',
         )}`,

src/config/Configuration.ts

@@ -1,7 +1,9 @@
-export default () => ({
-  database: {
-    url: process.env.DATABASE_URL || 'localhost',
-    port: parseInt(process.env.DATABASE_PORT, 10) || 27017,
-    name: process.env.DATABASE_NAME || 'aman',
-  },
-});
+import { readFileSync } from 'fs';
+import * as yaml from 'js-yaml';
+import { join } from 'path';
+
+export default () => {
+  return yaml.load(
+    readFileSync(join(__dirname, 'config.yaml'), 'utf8'),
+  ) as Record<string, any>;
+};