Connecting Lambda To Dynamodb

by aws188af2f810ceNo license2.8K starsListed Oct 8, 2026Updated Oct 8, 2026Repository updated today

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.

Instructions onlyDevOps & Cloud
AI-generated overview

Sets up AWS Lambda to DynamoDB integration with IAM roles, streams, and event source mapping.

What it does
Provides a procedure for connecting an AWS Lambda function to a DynamoDB table end to end, covering IAM execution role creation, function deployment, DynamoDB stream configuration, and event source mapping setup. It also gives troubleshooting guidance for common failures such as functions not triggering, permission denied errors, and timeouts. The detailed procedure lives in a reference document that the skill points to.
When to use it
Use it when setting up Lambda-DynamoDB integration, processing DynamoDB stream events, or deploying serverless event-driven architectures. It is also relevant when diagnosing why a Lambda function is not being triggered by a DynamoDB stream or why permission errors occur.
Requirements
Instructions only; no scripts are shipped. It assumes access to AWS Lambda, DynamoDB, IAM, and DynamoDB streams, and the ability to create and configure those resources.

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 [blocked].

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 [blocked] 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.

Source and attribution

Source:aws/agent-toolkit-for-awsinskills/specialized-skills/serverless-skills/connecting-lambda-to-dynamodbat commit188af2f

License: No license

Content belongs to its original authors. SourceWeft indexes it from a public repository.

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