Connect DynamoDB from Lambda function

index.js

const AWS = require('aws-sdk');
const ddb = new AWS.DynamoDB.DocumentClient();

exports.handler = (event, context, callback) => {
    const params = {
        TableName: "TABLE_NAME_HERE",
        Key: {
            "KEY_NAME_HERE": "KEY_VALUE_HERE"
        }
    }
    
    ddb.get(params, (err, data) => {
        if(err) {
            return callback(err, null);
        }
        return callback(null, data);
    })
};