refactor api

src/app.module.ts

@@ -1,9 +1,10 @@
 import { Module } from '@nestjs/common';
+import { ConfigModule } from '@nestjs/config';
 import { GraphqlModule } from './Graphql/graphql.module';
 import { ClerkModule } from './Clerk/clerk.module';
 import { RestfulModule } from './Restful/restful.module';
 
 @Module({
-  imports: [GraphqlModule, ClerkModule, RestfulModule],
+  imports: [ConfigModule.forRoot(), GraphqlModule, ClerkModule, RestfulModule],
 })
 export class AppModule {}