https://github.com/ksingh1817/cred-express-with-mongodb
first Express + MongoDB test deployment
https://github.com/ksingh1817/cred-express-with-mongodb
expressjs mongodb mongodb-atlas mongose nodejs
Last synced: about 1 month ago
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first Express + MongoDB test deployment
- Host: GitHub
- URL: https://github.com/ksingh1817/cred-express-with-mongodb
- Owner: ksingh1817
- Created: 2025-09-06T07:32:19.000Z (9 months ago)
- Default Branch: main
- Last Pushed: 2025-09-28T18:12:43.000Z (9 months ago)
- Last Synced: 2026-03-17T09:35:28.023Z (3 months ago)
- Topics: expressjs, mongodb, mongodb-atlas, mongose, nodejs
- Language: JavaScript
- Homepage: https://first-express-hu4s.onrender.com/
- Size: 39.1 KB
- Stars: 0
- Watchers: 0
- Forks: 0
- Open Issues: 0
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Metadata Files:
- Readme: readme.md
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README
This project is built using Express.js(render.com) and MongoDB (MongoDB Atlas).
It follows the MVC (Model-View-Controller) pattern and supports basic CRUD operations to manage student records efficiently.
Features
✅ Create Student => Add a new student to the database
📝 Edit Student => Update existing student details
❌ Delete Student => Remove a student record
👁️ View All Students => Display a list of all students
📄 View Student by ID => View detailed info of a student by ID
🔍 Search Student by Name => Filter students using a name query
📄 Pagination => Limit recode in each page
Tech Stack
Express.js => Node.js web framework for backend logic
MongoDB Atlas => Cloud-hosted NoSQL database
Random.com => Hosting the live application
GitHub => Version control and collaboration
Setting Environment
Go to => Edit the system environment variables
Go to => Environment Variables
Choose => Path on System Variables
Add => Add MongoDB URL (C:\Program Files\MongoDB\Server\8.0\bin)
Go to => Edit the system environment variables
Go to => Environment Variables
Choose => Path on User Variables
Add => Add mongosh URL (C:\Program Files\mongosh)
Install ==> mongosh
Go to ==> CMD
Hit ==> mongosh
Database Commands
show dbs ===>> Show all databases
use dbname ===>> Switch to database
db.dropDatabase() ===>> Delete current database
Collection Commands
db.createCollection("collection name") ===>> Create New Collection
show collections ===>> Show all collections
db.collection.drop("collection name") ===>> Delete a collection
db.collectionname.renameCollection("new collection name") ===>> rename collection
CRUD Operations
Insert
db.collection.insertOne({ name: "Alice", age: 25 }); // Insert one
db.collection.insertMany([{ name: "Bob" }, { name: "Carol" }]); // Insert many
Read
db.collection.find(); // All documents
db.collection.findOne({ name: "Alice" }); // First match
db.collection.find({ age: { $gt: 20 } }); // Conditional
Update
db.collection.updateOne({ name: "Alice" },{ $set: { age: 26 } }); // Update one
db.collection.updateMany({ age: { $lt: 30 } },{ $inc: { age: 1 } }); // Update many
Delete
db.collection.deleteOne({ name: "Alice" }); // Delete one
db.collection.deleteMany({ age: { $lt: 25 } }); // Delete many
Indexing
db.collection.createIndex({ name: 1 }); // Ascending index
db.collection.dropIndex("name_1");
db.collection.getIndexes();
Status Code
Success
200 OK - The request was successful and the response contains the requested data.
res.status(200).json({ message: "Success", data });
201 Created - A new resource has been successfully created (e.g., after POST).
res.status(201).json({ message: "User created", user });
204 No Content - The request was successful but there's no content to return.
res.status(204).send();
Redirection
301 Moved Permanently - A resource has been permanently moved to a new URL.
res.redirect(301, "https://newdomain.com");
302 Found - Temporary redirect.
res.redirect(302, "/login");
Client Errors
400 Bad Request - The client sent invalid data (e.g., missing fields, malformed JSON).
res.status(400).json({ error: "Invalid input" });
401 Unauthorized - Authentication is required but missing or invalid.
res.status(401).json({ error: "Authentication required" });
403 Forbidden - Authenticated user lacks permission.
res.status(403).json({ error: "Access denied" });
404 Not Found - Requested resource doesn't exist.
res.status(404).json({ error: "Resource not found" });
409 Conflict - Conflict in request (e.g., duplicate entry).
res.status(409).json({ error: "User already exists" });
422 Unprocessable Entity - Validation errors in input data.
res.status(422).json({ error: "Validation failed", details });
Server Errors
500 Internal Server Error - Unexpected server error.
res.status(500).json({ error: "Something went wrong" });
502 Bad Gateway / 503 Service Unavailable - Issues with upstream services or server overload.
res.status(503).json({ error: "Service temporarily unavailable" });