connecting-lambda-to-dynamodb

Connects an AWS Lambda function to DynamoDB with IAM roles, stream event source mapping, and read/write permissions. Use when setting up Lambda-DynamoDB integration, processing DynamoDB stream events, or deploying serverless event-driven architectures.

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Repository: aws/agent-toolkit-for-aws
Last source activity: May 13, 2026 at 09:01
Detected SKILL.md language: English
Stars: 2,383
Forks: 252

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name	connecting-lambda-to-dynamodb
description	Connects an AWS Lambda function to DynamoDB with IAM roles, stream event source mapping, and read/write permissions. Use when setting up Lambda-DynamoDB integration, processing DynamoDB stream events, or deploying serverless event-driven architectures.
version	1

Connecting Lambda to DynamoDB

Overview

Domain expertise for connecting AWS Lambda functions to DynamoDB tables, including IAM execution role creation, function deployment, DynamoDB stream configuration, and event source mapping setup.

Connect a Lambda function to DynamoDB

To set up end-to-end Lambda-DynamoDB integration with IAM roles, streams, and event source mapping, follow the procedure exactly. See Lambda-DynamoDB connection procedure.

Troubleshooting

Lambda function not triggering

Verify the event source mapping is active, DynamoDB streams are enabled with the correct view type, and the execution role has proper permissions. See the full procedure for details.

Permission denied errors

Check the IAM role has AWSLambdaDynamoDBExecutionRole attached and the trust policy allows Lambda to assume it.

Function timeout issues

Increase the timeout setting or adjust the batch size in the event source mapping.

connecting-lambda-to-dynamodb

Source facts

Install options

Review the source files

More from this repository

Connecting Lambda to DynamoDB

Overview

Connect a Lambda function to DynamoDB

Troubleshooting

Lambda function not triggering

Permission denied errors

Function timeout issues

More from this repository

Connecting Lambda to DynamoDB

Overview

Connect a Lambda function to DynamoDB

Troubleshooting

Lambda function not triggering

Permission denied errors

Function timeout issues