AWS Lambda MCP Server + DynamoDB MCP Server

Advanced2 hours
Use Cases

Common Use Cases

  • Serverless CRUD APIs
  • Event-driven data processing
  • Webhook handlers
  • Scheduled data jobs
Before You Begin

Prerequisites

  • AWS account
  • AWS CLI configured
  • Understanding of serverless architecture
Walkthrough

Step-by-Step Guide

1

Create DynamoDB Table

Set up a DynamoDB table with appropriate partition and sort keys.

2

Create Lambda Functions

Build Lambda functions for CRUD operations.

3

Wire Up API Gateway

Connect Lambda functions to API Gateway endpoints.

async function createItem(event) {
  const body = JSON.parse(event.body);
  await dynamodb.putItem({
    TableName: "items",
    Item: { id: { S: generateId() }, ...marshallItem(body), createdAt: { S: new Date().toISOString() } }
  });
  return { statusCode: 201, body: JSON.stringify({ message: "Created" }) };
}
4

Add Error Handling

Implement proper error responses and DynamoDB conditional writes for concurrency.

5

Set Up Monitoring

Configure CloudWatch alarms for Lambda errors and DynamoDB throttling.

Examples

Code Examples

typescript
Query Handler
async function listItems(event) {
  const { category } = event.queryStringParameters || {};
  const params = { TableName: "items" };
  if (category) {
    params.IndexName = "category-index";
    params.KeyConditionExpression = "category = :cat";
    params.ExpressionAttributeValues = { ":cat": { S: category } };
    const result = await dynamodb.query(params);
    return { statusCode: 200, body: JSON.stringify(result.Items.map(unmarshallItem)) };
  }
  const result = await dynamodb.scan(params);
  return { statusCode: 200, body: JSON.stringify(result.Items.map(unmarshallItem)) };
}
Help

Troubleshooting

How do I handle cold starts?+
DynamoDB scans are slow+

Quick Info

DifficultyAdvanced
Time Estimate2 hours
Tools
AWS Lambda MCP ServerDynamoDB MCP Server

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