DynamoDB랑 연동하기

https://docs.aws.amazon.com/ko_kr/sdk-for-javascript/v2/developer-guide/creating-and-calling-service-objects.html

서비스 객체 생성 및 호출 - AWS SDK for JavaScript

 

var AWS = require('aws-sdk');
var documentClient = new AWS.DynamoDB.DocumentClient({
    apiVersion:"2012-08-10"
});
const tableName = "Cards";

exports.handler = async (event) => {
    console.log("Received: " + JSON.stringify(event,null,2));
    let response = "";

    try {
        var params = {
            TableName : tableName
        };
        const cards = await documentClient.scan(params).promise();

        response = {
            statusCode: 200,
            body: JSON.stringify(cards)
        };

    } catch(exception) {
        console.error(exception);
        response = {
            statusCode:500,
            body : JSON.stringify({"Message":exception})
        }
    }

    return response;
};

이렇게 하니까

 

2022-10-03T18:36:03.009Z f83c098c-5937-4a9c-bfb6-1a0f232cfb7f ERROR AccessDeniedException: User: arn:aws:sts::328625240517:assumed-role/getCard-role-rlsz4c4q/getCard is not authorized to perform: dynamodb:Scan on resource: arn:aws:dynamodb:ap-northeast-2:328625240517:table/Cards because no identity-based policy allows the dynamodb:Scan action
    at Request.extractError (/var/runtime/node_modules/aws-sdk/lib/protocol/json.js:52:27)

이런 에러가 발생했다. => IAM 권한을 설정해줘야한다!!!