Day#28 | AWS Lambda Part#3 | Trigger Lambda function using S3 and API gateway |CCIT

AWS Lambda Part#3 | Trigger Lambda function using S3 and API gateway |Cloud Computing In Telugu Contact details: Telegram: https://t.me/cloudcomputingintelugu Instagram:   / cloudcomput.  . Gmail: [email protected] 00:00:00 - Channel Introduction 00:00:16 - Class introduction 00:00:50 - Trigger Lambda using S3 00:08:40 - Trigger Lambda using API Gateway In this video, you will learn how to trigger a lambda function using S3 and API gateway. /*================ S3copyfile Lambda function code ==================== import boto3 s3 = boto3.resource('s3') def lambda_handler(event, context): bucket = event['Records'][0]['s3']['bucket']['name'] key = event['Records'][0]['s3']['object']['key'] copy_source = { 'Bucket': bucket, 'Key': key } try: destbucket = s3.Bucket('s3writedata') destbucket.copy(copy_source, key) print('{} transferred to destination bucket'.format(key)) except Exception as e: print(e) print('Error getting object {} from bucket {}. '.format(key, bucket)) raise e ================ Getpresignedurl Lambda function code ==================== import logging import boto3 from botocore.exceptions import ClientError import json def create_presigned_url(bucket_name, object_name, expiration): """Generate a presigned URL to share an S3 object :param bucket_name: string :param object_name: string :param expiration: Time in seconds for the presigned URL to remain valid :return: Presigned URL as string. If error, returns None. """ Generate a presigned URL for the S3 object s3_client = boto3.client('s3') try: response = s3_client.generate_presigned_url('get_object', Params={'Bucket': bucket_name, 'Key': object_name}, ExpiresIn=int(expiration)) except ClientError as e: logging.error(e) return None The response contains the presigned URL return response def lambda_handler(event, context): logging.info(f"Recieved Event: {json.dumps(event, indent=4)}") event_body = json.loads(event.get("body", json.dumps({}))) bucket_name = event_body.get("bucket_name") object_name = event_body.get("object_name") expiration_time = event_body.get("expiration_time", 3600) if not bucket_name or not object_name: response = { "error_message":"bucket_name, object_name fields are must in body and expiration_time is optional." } else: pre_signed_url = create_presigned_url(bucket_name, object_name, expiration_time) response = { "pre_signed_url":pre_signed_url, "valid_for": f"next {expiration_time} seconds", "bucket_name": bucket_name, "object_name": object_name } return { "statusCode":200, "headers":{"Access-Control-Allow-Origin": "*"}, "body": json.dumps(response) } */ Amazon Web Services(AWS) is a Comprehensive Evolving Cloud Computing Platform provided by Amazon that includes a mixture of infrastructure as a service. What is Cloud Computing? Cloud Computing in Telugu Cloud Computing Technologies Cloud Computing Technics #awsintelugu #amazonwebservicesintelugu #cloudintelugu #cloudcomputingintelugu #besttechnologiesoncloudintelugu #computing#awscloudintelugu #whatiscloudintelugu #cloudtechnologyintelugu #cloudservicesintelugu #technologiesoncloudintelugu #technologyintelugu #howtoworkoncloudintelugu #intelugu #awstelugu #aws #amazonwebservices #cloud #cloudcomputing #besttechnologiesoncloud #computing#awscloud #whatiscloud #cloudtechnology #cloudservices #technologiesoncloud #technology #howtoworkoncloud #computing #cloud101 #cloudcomputer #computung101#developincloud #bigenterprise #cloudplatform #cloudoncomputer #microsoftcloud #microsoftcloudservices #services #MicrosoftAzure #AzureisMicrosoft #bigenterprisecloud #companiesaws #offeredonPaaSserviceandIaaSservice #PaaSservice #IaaSservice #featuredservices #datacenter #databases #amazon #amazonworlds #mostcomprehensiveandbroadlyadoptedcloudplatform #featuredservicesfromdatacenterglobally #WhatcompaniesusAWS#WhatcompaniesusAWS? #cloudbasedtechnology