fix(ts): fix failing tests and type errors

Author: jescalada

src/db/mongo/helper.ts

@@ -1,15 +1,19 @@
 import { MongoClient, Db, Collection, Filter, Document, FindOptions } from 'mongodb';
-import config from '../../config';
+import { getDatabase } from '../../config';
 import MongoDBStore from 'connect-mongo';
 
-const dbConfig = config.getDatabase();
+const dbConfig = getDatabase();
 const connectionString = dbConfig.connectionString;
 const options = dbConfig.options;
 
 let _db: Db | null = null;
 
 export const connect = async (collectionName: string): Promise<Collection> => {
   if (!_db) {
+    if (!connectionString) {
+      throw new Error('MongoDB connection string is not provided');
+    }
+
     const client = new MongoClient(connectionString, options);
     await client.connect();
     _db = client.db();

src/proxy/index.ts

@@ -73,7 +73,7 @@ const start = async () => {
   return app;
 };
 
-export {
+export default {
   proxyPreparations,
   createApp,
   start

test/chain.test.js

@@ -53,17 +53,17 @@ describe('proxy chain', function () {
   let processors;
   let chain;
 
-  beforeEach(() => {
-    // Re-require the processors module after clearing the cache
-    processors = require('../src/proxy/processors');
+  beforeEach(async () => {
+    // Re-import the processors module after clearing the cache
+    processors = await import('../src/proxy/processors');
 
     // Mock the processors module
     sinon.stub(processors, 'pre').value(mockPreProcessors);
 
     sinon.stub(processors, 'push').value(mockPushProcessors);
 
-    // Re-require the chain module after stubbing processors
-    chain = require('../src/proxy/chain');
+    // Re-import the chain module after stubbing processors
+    chain = (await import('../src/proxy/chain')).default;
 
     chain.chainPluginLoader = new PluginLoader([]);
   });