Configuring a Lambda Function to Receive Notifications - Amazon SDK for Ruby
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Configuring a Lambda Function to Receive Notifications

The following example configures the Lambda function named my-notification-function in the us-west-2 region to accept notifications from the resource with the ARN my-resource-arn.

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# You may not use this file except in compliance with the License. A copy of the
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# http://aws.amazon.com/apache2.0/
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# This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS
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require 'aws-sdk-lambda'  # v2: require 'aws-sdk'

client = Aws::Lambda::Client.new(region: 'us-west-2')

args = {}
args[:function_name] = 'my-notification-function'
args[:statement_id] = 'lambda_s3_notification'
args[:action] = 'lambda:InvokeFunction'
args[:principal] = 's3.amazonaws.com'
args[:source_arn] = 'my-resource-arn'

client.add_permission(args)