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CloudFront Invalidation Lambda

Simple AWS Lambda function that invalidates CloudFront cache for specified paths.

Usage

Send an event with your CloudFront distribution ID and paths to invalidate:

{
  "distribution_id": "E1234567890ABC",
  "paths": ["/index.html", "/css/*", "/js/*"]
}
  • distribution_id: Your CloudFront distribution ID (required)
  • paths: Paths to invalidate (optional, defaults to ["/*"])

Response

Success:

{
  "statusCode": 200,
  "body": {
    "message": "CloudFront invalidation process completed",
    "distribution_id": "E1234567890ABC",
    "invalidation_id": "I1234567890ABC",
    "success": true
  }
}

Error:

{
  "statusCode": 404,
  "body": {
    "error": "CloudFront distribution not found"
  }
}

Setup

  1. Deploy the Lambda function
  2. Add these IAM permissions to your Lambda role:
    • cloudfront:GetDistribution
    • cloudfront:CreateInvalidation
    • cloudfront:GetInvalidation

Local Development

pip install -r requirements.txt