initial commit

mongo.ts

@@ -0,0 +1,38 @@
+import mongoose from 'mongoose';
+
+import {config} from './config';
+
+async function resetMongo(): Promise<void> {
+  try{
+    // await clearContests();
+    // await clearProblems();
+    // await clearSessions();
+  }catch(err: unknown){
+    throw new Error(`MongoDB reset failed. ${err}`);
+  }
+}
+
+async function initializeMongo(): Promise<void> {
+  try{
+    await resetMongo();
+  }catch(err: unknown){
+    throw new Error(`MongoDB initialize failed. ${err}`);
+  }
+}
+
+export async function runMongo(): Promise<void> {
+  try {
+    mongoose.set('strictQuery', false);
+		const auth: string = `${config.mongodb.user}:${config.mongodb.pass}`;
+		const server: string = `${config.mongodb.host}:${config.mongodb.port}`;
+		const uri: string = `mongodb://${auth}@${server}/${config.mongodb.db}`;
+    await mongoose.connect(uri);
+  } catch(err: unknown) {
+    throw new Error(`MongoDB connection failed. ${err}`);
+  }
+  try {
+    await initializeMongo();
+  } catch(err: unknown) {
+    throw new Error(`Initialize MongoDB data failed. ${err}`);
+  }
+}