Templates/Blueprints/S3EventToSNSToSQS/s3tosnstosqs.ps1.txt
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# PowerShell script file to be executed as a AWS Lambda function. # # When executing in Lambda the following variables will be predefined. # $LambdaInput - A PSObject that contains the Lambda function input data. # $LambdaContext - An Amazon.Lambda.Core.ILambdaContext object that contains information about the currently running Lambda environment. # # The last item in the PowerShell pipeline will be returned as the result of the Lambda function. # # To include PowerShell modules with your Lambda function, like the AWS.Tools.S3 module, add a "#Requires" statement # indicating the module and version. If using an AWS.Tools.* module the AWS.Tools.Common module is also required. # # The following link contains documentation describing the structure of the S3 event object. # https://docs.aws.amazon.com/AmazonS3/latest/dev/notification-content-structure.html # # This example demonstrates how to process an S3 Event that follows the process: # S3 Event -> SNS Topic -> SQS Queue -> Lambda Function #Requires -Modules @{ModuleName='AWS.Tools.Common';ModuleVersion='4.1.518'} #Requires -Modules @{ModuleName='AWS.Tools.S3';ModuleVersion='4.1.518'} # Uncomment to send the input event to CloudWatch Logs #Write-Host (ConvertTo-Json -InputObject $LambdaInput -Compress -Depth 5) foreach ($sqsRecord in $LambdaInput.Records) { $sqsRecordBody = ConvertFrom-Json -InputObject $sqsRecord.body try { # If this call works, then the SNS Subscription is configured with # "Raw Message Delivery" = "True" $snsMessage = ConvertFrom-Json -InputObject $sqsRecordBody.Message } catch { # If we hit the catch statement, then the SNS Subscription is configured # with "Raw Message Delivery" = "False" $snsMessage = $sqsRecordBody } if ($snsMessage.Records.Count -gt 0) { # We have an array of SNS Records, lets process them foreach ($s3Event in $snsMessage.Records) { $bucket = $s3Event.s3.bucket.name $key = $s3Event.s3.object.key Write-Host 'Processing event for:' (ConvertTo-Json -InputObject @{Bucket = $bucket; Key = $key} -Compress) # TODO: Add logic to handle S3 event record, for example $obj = Get-S3Object -Bucket $bucket -Key $key Write-Host "Object $key is $($obj.Size) bytes" } } else { # We likely have an S3 Test Event, write it out to logs Write-Host 'SNS Message:' (ConvertTo-Json -InputObject $snsMessage -Compress) } } |