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EasySlip Bank Verification#

Learn how to verify Thai bank slips using the EasySlip API for automated payment processing.

🎯 What You'll Build#

A bank slip verification system that: - Receives bank slip images via web form - Processes slips through EasySlip API - Returns verification results and payment details - Stores verification history for record-keeping

📋 Requirements#

  • EasySlip API account
  • n8n instance running
  • Basic understanding of webhooks

🔧 Workflow Overview#

View workflow file

Key Components#

  1. Form Trigger - Upload bank slip images
  2. EasySlip API - Verify bank slips and extract payment data
  3. Data Processing - Format and validate verification results
  4. Response Handler - Return verification status to user

📝 Step-by-Step Guide#

1. Set Up the Form Trigger#

  1. Add a Form Trigger node
  2. Configure form fields: - Bank Slip Image (file upload, required) - Reference Number (text, optional) - Expected Amount (number, optional)

2. Configure EasySlip API Integration#

  1. Add an HTTP Request node
  2. Set up the API call to EasySlip: - Method: POST - URL: https://api.easyslip.com/v1/verify - Headers: Add your EasySlip API key - Body: Upload the bank slip image

3. Process Verification Results#

  1. Add a Set node to process the API response
  2. Extract key information: - Verification status - Payment amount - Transaction details - Timestamp

4. Handle Response Logic#

  1. Add a Switch node to branch based on verification status
  2. Create paths for: - Successful verification - Failed verification - API errors

🔌 API Configuration#

EasySlip API Headers#

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{
  "Authorization": "Bearer YOUR_EASYSLIP_API_KEY",
  "Content-Type": "multipart/form-data"
}

Expected Response Format#

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{
  "status": "success",
  "data": {
    "amount": 1000.00,
    "transaction_id": "TXN123456",
    "timestamp": "2025-01-15T10:30:00Z",
    "verified": true
  }
}

🧪 Testing Your Workflow#

  1. Test with known good slips - Use verified bank slips
  2. Test edge cases - Try different image qualities
  3. Error handling - Test with invalid or corrupted images
  4. Performance - Check response times under load

🎨 Customization Options#

Enhanced Verification Logic#

  • Add amount matching against expected values
  • Implement duplicate transaction detection
  • Add manual review queue for suspicious slips

Integration Possibilities#

  • Connect to accounting systems
  • Update customer payment records
  • Send notifications to payment teams
  • Generate receipt PDFs

Data Storage Options#

  • Save verification history to Google Sheets
  • Store in database for audit trails
  • Create backup of processed slips

🔍 Troubleshooting#

Common Issues#

API Authentication Errors - Verify your EasySlip API key is valid - Check API key permissions - Ensure proper header formatting

Image Processing Failures - Check image file size limits - Verify supported image formats - Ensure image clarity and quality

Timeout Issues - Increase HTTP request timeout - Implement retry logic - Optimize image size before upload

Debug Tips#

  1. Enable detailed logging in HTTP Request node
  2. Test API directly with curl or Postman
  3. Check network connectivity to EasySlip servers
  4. Monitor API rate limits and usage

📊 Advanced Features#

Batch Processing#

  • Process multiple slips in sequence
  • Implement queue management
  • Add progress tracking

Advanced Validation#

  • Cross-reference with bank APIs
  • Implement fraud detection rules
  • Add manual review workflows

Analytics & Reporting#

  • Track verification success rates
  • Monitor processing times
  • Generate daily/weekly reports

🛡️ Security Considerations#

  • Secure API key storage - Use n8n credentials manager
  • Data privacy - Comply with financial regulations
  • Access control - Limit who can view sensitive data
  • Audit logging - Keep records of all verifications

🎓 Next Steps#

Once comfortable with EasySlip verification:

  1. Enhance with AI - Add machine learning for fraud detection
  2. Mobile integration - Create mobile-friendly upload interface
  3. Real-time notifications - Alert staff for high-value transactions
  4. Multi-bank support - Expand to other bank verification APIs

Related Tutorials: - Form Submission - Learn more about form handling - Email Attachment Analyzer - Process documents automatically

Resources: - EasySlip API Documentation - n8n HTTP Request Node Guide