Dynamo DB

Overview

Amazon DynamoDB is a fully managed NoSQL database service. It provides fast performance at any scale along with built-in security and in-memory caching.

Use Cases

• Mobile, web, gaming, and IoT applications that need low latency data access

• Serverless applications using AWS Lambda

• Applications with non-relational data models

Properties

• Primary Key: The uniquely identifying attribute(s) for table items. Can be simple (partition key only) or composite (partition key + sort key).

• Attributes: Schema specifying the key name and data type for each column.

Properties that were left out on purpose:

• Read Capacity Units: Number of reads per second allowed. Scales up to meet demand. Default is 10/s.

• Write Capacity Units: Number of writes per second allowed. Scales up to meet demand. Default is 10/s

You can easily override these defaults by entering the desired values in the code box

Inputs and Outputs

Inputs

• Item: Add a new item (row) to the DynamoDB table.

Outputs

• Trigger: Perform an action when an item is added, updated or deleted.