main #17
main #17
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WalkthroughThis change removes the Dockerfiles for both the backend and frontend of the MERN application, eliminating containerization setup for these services. Additionally, the MongoDB connection string in the backend is updated from a local MongoDB instance to a remote MongoDB Atlas URI, while the rest of the database connection logic remains unchanged. Changes
Estimated code review effort🎯 1 (Trivial) | ⏱️ ~3 minutes Poem
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Actionable comments posted: 1
🔭 Outside diff range comments (1)
mern/backend/db/connection.js (1)
12-23: Avoid top-level awaits & export a reusable connection helper.Running
await client.connect()during module evaluation blocks the event loop and makes the application crash on first import if the DB is unreachable. Prefer exporting an asyncconnect()(or a lazy singleton) so callers can handle failures and decide when to connect.-try { - await client.connect(); - await client.db("admin").command({ ping: 1 }); - console.log("Pinged your deployment. You successfully connected to MongoDB!"); -} catch (err) { - console.error(err); -} - -let db = client.db("employees"); - -export default db; +export async function getDb() { + if (!client.topology?.isConnected()) { + await client.connect(); + } + + return client.db("employees"); +}Callers can now do
const db = await getDb();and decide how to surface connection errors.
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📒 Files selected for processing (3)
mern/backend/Dockerfile(0 hunks)mern/backend/db/connection.js(1 hunks)mern/frontend/Dockerfile(0 hunks)
💤 Files with no reviewable changes (2)
- mern/backend/Dockerfile
- mern/frontend/Dockerfile
| const URI = "mongodb+srv://akhileshyalapalli266:Akhilesh266@akhileshdb.naco49j.mongodb.net/?retryWrites=true&w=majority&appName=AkhileshDB"; | ||
| const client = new MongoClient(URI, { |
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Remove hard-coded MongoDB credentials – move URI to environment variables.
Committing the full Atlas connection string (including username & password) to version control is a severe security risk. Anyone with repo access (or even a leaked patch) can obtain full database access.
-import { MongoClient, ServerApiVersion } from "mongodb";
+import { MongoClient, ServerApiVersion } from "mongodb";
+import dotenv from "dotenv";
+
+dotenv.config(); // Loads .env variables
-const URI = "mongodb+srv://akhileshyalapalli266:Akhilesh266@akhileshdb.naco49j.mongodb.net/?retryWrites=true&w=majority&appName=AkhileshDB";
+const URI = process.env.MONGODB_URI;
+
+if (!URI) {
+ throw new Error(
+ "MONGODB_URI is not set – define it in your environment or .env file",
+ );
+}Be sure to
- Add
.env(or your secret-manager setup) containingMONGODB_URI, and - List
.envin.gitignoreto keep it out of the repo.
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Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| const URI = "mongodb+srv://akhileshyalapalli266:Akhilesh266@akhileshdb.naco49j.mongodb.net/?retryWrites=true&w=majority&appName=AkhileshDB"; | |
| const client = new MongoClient(URI, { | |
| import { MongoClient, ServerApiVersion } from "mongodb"; | |
| import dotenv from "dotenv"; | |
| dotenv.config(); // Loads .env variables | |
| const URI = process.env.MONGODB_URI; | |
| if (!URI) { | |
| throw new Error( | |
| "MONGODB_URI is not set – define it in your environment or .env file", | |
| ); | |
| } | |
| const client = new MongoClient(URI, { | |
| // … your existing options here, e.g.: | |
| // serverApi: ServerApiVersion.v1, | |
| }); |
🤖 Prompt for AI Agents
In mern/backend/db/connection.js around lines 3 to 4, the MongoDB connection URI
is hard-coded with credentials, which is a security risk. Remove the hard-coded
URI and instead load it from an environment variable like
process.env.MONGODB_URI. Ensure you add a .env file containing MONGODB_URI with
the connection string and include .env in .gitignore to prevent committing
sensitive information to the repository.
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