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DynamoDB KickOff
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dynamodb.md

DynamoDB Basics

Naming Rules and Data Types

Tables, attributes, and other objects in DynamoDB must have names. All names must be encoded using UTF-8, and are case-sensitive.

Table names and index names must be between 3 and 255 characters long, and can contain only the following characters:

  • a-z
  • A-Z
  • 0-9
  • _ (underscore)
    • (dash)
  • . (dot)

Attribute names must be between 1 and 255 characters long.

DynamoDB Reserved Words

  • Scalar Types – A scalar type can represent exactly one value. The scalar types are number, string, binary, Boolean, and null.

  • Document Types – A document type can represent a complex structure with nested attributes, such as you would find in a JSON document. The document types are list and map.

  • Set Types – A set type can represent multiple scalar values. The set types are string set, number set, and binary set.

DynamoDB Local Setup

# Pull DynamoDb docker image and run it locally
➜ docker run -p 8000:8000 amazon/dynamodb-local

# Install awscli
➜ brew install awscli # For mac

# Configure AWS
➜ aws configure
AWS Access Key ID [******************]: **
AWS Secret Access Key [******************]: **
Default region name [US-EAST-1]: US-EAST-1
Default output format [**]: json

# List tables
➜ aws dynamodb list-tables --endpoint-url http://localhost:8000
{
  "TableNames": []
}

DynamoDB Node.js packages

Examples

Links

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