use configuration files during runtime

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>;
+};