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Event-driven image moderation and notification with AWS CDK

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Event-driven image moderation and notification service with AWS CDK


This sample create a S3 bucket that will trigger image moderation check on object created and send notification to SNS when specific moderation labels are detected. The SNS2Telegram creates a Lambda function as the SNS topic subscription which fires the notification to a private Telegram chatroom with the image preview and moderation result.

# Example automatically generated from non-compiling source. May contain errors.
from cdk_image_moderation import Moderation, SNS2Telegram

app = cdk.App()
env = {
    "region": process.env.CDK_DEFAULT_REGION,
    "account": process.env.CDK_DEFAULT_ACCOUNT
stack = cdk.Stack(app, "moderation-demo", env=env)

# create the moderation
mod = Moderation(stack, "Mod",
    moderation_labels=[ModerationLabels.EXPLICIT_NUDITY, ModerationLabels.DRUGS, ModerationLabels.TOBACCO, ModerationLabels.ALCOHOL, ModerationLabels.VIOLENCE, ModerationLabels.RUDE_GESTURES

# send notification via sns to telegram
SNS2Telegram(stack, "SNS2TG",

Deploy the CDK app

cdk diff
cdk deploy

Deploy from this repository

# run `yarn build` or `yarn watch` to generate the lib
cdk --app lib/integ.default.js diff
cdk --app lib/integ.default.js deploy

On deploy completed, you will get the S3 bucket in the Outputs. Simply upload any images into this bucket and you should be able to get the notification from the Telegram chatroom.

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