AWS Classroomnotes 11/May/2023

NoSQL on AWS

• NOSQL Databases by types
  • Key Value stores
  • Wide Column Databases
  • Document Database
  • Graph Databases
• AWS gives managed options
  • Dynamo DB (Propietry database by AWS)
  • AWS Document DB (Mongo on AWS)
  • AWS Key Spaces (Cassandra on AWS)
  • Nepute (Graph Database)

Dynamo DB

• Create a Table in Dynamo DB
  
  
  
  
• Who will use these tables?
  • Write code: Refer Here
• Sample code

import boto3

def create_dynamo_client():
    dynamo_client  =  boto3.resource(service_name = 'dynamodb',region_name = 'us-east-1',
              aws_access_key_id = 'AKIA3BS5NFXXXXXXX',
              aws_secret_access_key = 'qfGTJL28HrqcbhKCM0t//xxx7gTGG4iNrv3/d94Lsp')
    return dynamo_client

def get_table(dynamo_client):
    sample_table = dynamo_client.Table('qtdynamodb')
    return sample_table

def create_ticket(table):
    table.put_item(Item = {
        'id': '1',
        'movie': 'avengers',
        'theatre': 'pvr',
        'username': 'qtdevops'

    })


def get_ticket(table):
    item = table.get_item(Key = {'id': '1'})

if __name__ == "__main__":
    dynamo_client = create_dynamo_client()
    table = get_table(dynamo_client)
    create_ticket()
    get_ticket()

Dynamo DB Sizes

• Refer Here for capacity modes
• Dynamo Db Supports two capacity modes
  • On-demand
  • Provisioned