DFanso / trying_CassandraDB

tyring cassandra for the first time

Node.js CRUD Application with AstraDB and Cassandra

This is a simple CRUD application built with Node.js, Express, and AstraDB (Cassandra-as-a-Service) by DataStax. The application demonstrates how to perform basic Create, Read, Update, and Delete operations on a Cassandra database using the DataStax Node.js Driver.

Prerequisites

• Node.js (version 14 or higher recommended)
• npm
• An AstraDB account (you can sign up for a free tier)

Setup

1. Clone the repository:

git clone https://github.com/DFanso/trying_CassandraDB

cd trying_CassandraDB

2. Install dependencies:

npm i

3. Download the secure connect bundle from the AstraDB dashboard and place it in the secure-connect folder.

4. Create a .env file in the root of the project directory and set the following environment variables:

ASTRA_DB_CLIENT_ID=<your_astra_db_client_id>
ASTRA_DB_CLIENT_SECRET=<your_astra_db_client_secret>
ASTRA_DB_TOKEN=<your_astra_db_token>
ASTRA_DB_KEYSPACE=<your_astra_db_keyspace>
ASTRA_DB_SECURE_CONNECT_BUNDLE_PATH=./secure-connect/your_downloaded_secure_connect_bundle.zip

5. Create the users table in your AstraDB keyspace using the AstraDB CQL console or the cqlsh command-line tool:

CREATE TABLE IF NOT EXISTS dfanso.users (
  id UUID PRIMARY KEY,
  name text,
  email text
);

Running the Application

1. Start the application:

npm start

2. The application will be running on http://localhost:3000.

API Endpoints

• Create a new user (POST): /api/users

{
 "name": "Leo Gavin",
 "email": "[e-mail]"
}

• Retrieve a user by ID (GET): /api/users/:id
• Update a user's information (PUT): /api/users/:id

{
  "name": "DFanso",
  "email": "[e-mail]"
}

• Delete a user by ID (DELETE): /api/users/:id