Step 1: Access Redaction Interface - FOI Redaction Walkthrough
Find and open your deployed AI redaction interface
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Step 1 of 5 • 2 minutes
Access the Redaction Interface
Find your AI redaction service URL from the CloudFormation stack outputs.
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Expected outcome
- CloudFormation stack shows CREATE_COMPLETE status
- RedactionInterfaceURL output is visible in the Outputs tab
- FOI redaction interface opens in a new browser tab
How to find your redaction interface URL
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Open the CloudFormation console
Go to CloudFormation console in us-east-1 (N. Virginia) (opens in new tab)
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Find your stack
Look for a stack named
ndx-try-foi-redaction-[timestamp]The status should be CREATE_COMPLETE
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Click on the stack name
This opens the stack details page
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Go to the "Outputs" tab
You'll see a list of outputs from the deployment
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Find the RedactionInterfaceURL output
Look for the row with Key:
RedactionInterfaceURLThe Value will be a URL like:
https://[random-id].execute-api.us-east-1.amazonaws.com/prod/redact -
Click the RedactionInterfaceURL value
This opens the redaction interface in a new tab
Tip: Bookmark this URL or keep the tab open - you'll need it for the rest of the walkthrough.
What you should see
When you open the redaction interface URL, you should see:
- A clean web interface with "FOI Redaction - AI PII Detection" heading
- Upload area with drag-and-drop zone or file browser button
- Supported formats notice: "PDF, DOCX, TXT (max 10MB)"
- Sample documents section with 3 downloadable FOI responses
- Empty results area ready to show detected PII
- Confidence threshold selector (High: 95%+, Medium: 80-94%, Low: <80%)
Troubleshooting
Stack not showing CREATE_COMPLETE
If your stack shows CREATE_IN_PROGRESS:
- Wait 4-6 minutes for deployment to complete
- Refresh the CloudFormation console page
- Check the "Events" tab to see deployment progress
- Comprehend and S3 setup typically takes 3-4 minutes
If your stack shows CREATE_FAILED or ROLLBACK_COMPLETE:
- Check the "Events" tab to see which resource failed
- Common issues: IAM permissions for Comprehend, S3 bucket name conflicts
- Verify Comprehend is available in us-east-1 region
- Try deleting the stack and redeploying
- Contact support if the issue persists
RedactionInterfaceURL not in Outputs
If you don't see RedactionInterfaceURL in the Outputs tab:
- Check the stack is fully deployed (CREATE_COMPLETE status)
- Refresh the page - outputs may take a moment to appear
- Check you're looking at the correct stack (ndx-try-foi-redaction-...)
- Try the "Resources" tab and find the API Gateway - the invoke URL is your redaction URL
- Ensure API Gateway Lambda integration completed successfully
Redaction interface shows error
If the redaction interface page shows an error or won't load:
- Check you're using the correct region (us-east-1)
- Check your browser isn't blocking the page (HTTPS should work)
- Try opening in an incognito/private window
- Check the stack Events tab for any errors during API Gateway or Lambda setup
- Wait a few minutes - API Gateway endpoints can take 1-2 minutes to activate after deployment
- Verify Comprehend service is available in us-east-1 region
Sample documents not showing
If the sample documents section is empty:
- Wait 1-2 minutes - sample documents are uploaded during stack creation
- Refresh the redaction interface page
- Check the S3 bucket named
ndx-try-foi-redaction-[timestamp]-documentscontains files - If issues persist, contact support