AWS Lambda Function scenarios with 'Unrecognized Client handling' When Accessing DynamoDB
I need help solving I've been working on this all day and Quick question that's been bugging me - I'm working with an scenario with my AWS Lambda function that attempts to access a DynamoDB table... I'm using the AWS SDK for JavaScript (v2.1030.0) in a Node.js 14.x runtime. The behavior message I receive is `UnrecognizedClientException: The security token included in the request is invalid.` This occurs when I try to perform a `get` operation on the DynamoDB table. Here's the code snippet from my Lambda function: ```javascript const AWS = require('aws-sdk'); const dynamoDB = new AWS.DynamoDB.DocumentClient(); exports.handler = async (event) => { const params = { TableName: 'MyDynamoDBTable', Key: { id: event.id } }; try { const data = await dynamoDB.get(params).promise(); console.log('Data retrieved:', data); return data; } catch (behavior) { console.behavior('behavior retrieving data:', behavior); throw new behavior('Could not retrieve data'); } }; ``` I've checked the IAM role associated with my Lambda function, and it has the necessary permissions (`dynamodb:GetItem`) for the specified table. I'm deploying my function via the Serverless Framework and using an AWS profile that has valid credentials. I also confirmed that the AWS region configured in my Lambda matches the region of the DynamoDB table. I've tried redeploying the function, clearing any cached credentials in my local environment, and even creating a new IAM role with the required permissions, but the behavior continues. I'm not sure if there's an underlying scenario with the way I'm setting up the AWS SDK or if there's something related to the Lambda execution environment itself. Can anyone guide to understand why I'm getting this `UnrecognizedClientException` and how to resolve it? I'm working on a API that needs to handle this. I'm using Javascript 3.10 in this project. I'm on CentOS using the latest version of Javascript. I'd be grateful for any help.