Let's operate AWS of another account with Lambda boto3

Introduction #

Describes how to easily operate other AWS environments with Lambda boto3

Get referrer access key ID and secret access key #

Follow the steps below

1. Go to AWS service [IAM]
2. User Press
3. [AdministratorAccess] Select the user to which the policy is attached
4. Press the Credentials tab
5. Create access key
6. Make a note of the Access Key ID and Secret Access Key

create dynamoDB with referrer #

create table. Name it [sample_tbl].

Create a Lambda function in the referenced account #

code below

import boto3

def get_external_dynamodb():
    client = boto3.client('dynamodb',
        aws_access_key_id=[access key id],
        aws_secret_access_key=[secret access key] ,
        region_name=[region code]
    )
    return client

def lambda_handler(event, context):
    external_dynamodb = get_external_dynamodb()
    external_table = external_dynamodb.scan(TableName = "sample_tbl")
    return external_table

that’s all