Building a Secure and Automated Bulk

NiziStore: Building a Secure and Automated Bulk Upload System with AWS Transfer Family

About the Client

NiziStore is the online retail platform, dedicated to delivering genuine Nepali-made electronics. The store offers a variety of innovative and reliable tech products designed and manufactured in Nepal, including Nizi Power Router Backups, Dynamic Nizi POS systems, AudiQR smart solutions, Light Controllers, and Barcode Scanners.

Customers can explore and purchase products through the NiziStore e-commerce website, which provides seamless online shopping, transparent pricing, and secure checkout. Each product comes with a warranty or guarantee ensuring long-term performance and customer satisfaction.


The Challenge: Managing Frequent Product Updates at Scale

As NiziStore’s product catalog expanded, the internal operations team faced increasing difficulty keeping product information, stock levels, and prices up to date across multiple environments (Dev, Staging, Production).

Some of the key challenges included:

  • Manual Product Updates: Admin teams had to manually edit product information in the CMS or database, a time-consuming and error-prone process.
  • High Frequency of Changes: With frequent price adjustments, new model launches, and bundle offers, updates were needed several times per week.
  • Inconsistent Processes: Different departments used their own update scripts and workflows, leading to version mismatches and configuration drift.
  • Security Risks in File Sharing: Data files were shared via email or third-party apps without proper access control or encryption.
  • Limited Traceability: There was no single audit trail for who uploaded what, when, and how changes affected the live catalog.

It became clear that NiziStore needed a centralized, automated, and secure solution that would allow authorized admins to bulk upload and update product data efficiently, without compromising on control or security.


NiziStore AWS Architecture Diagram

Figure 1: Automated Bulk Update Workflow via AWS Transfer Family

The Solution: Automated Admin Bulk Update Workflow using AWS Transfer Family

To streamline product management, NiziStore, in collaboration with KTM One (AWS Advanced Consulting Partner), designed and deployed a secure, automated bulk update system using AWS Transfer Family, S3, Lambda, and DynamoDB, all provisioned through AWS CloudFormation for consistency and compliance.

This system empowers internal admins to securely upload product update files (CSV format) containing changes in prices, stock counts, or descriptions, which are then automatically processed and synchronized with NiziStore’s production database.

How It Works: End-to-End Update Automation

  1. Admin Upload: Authorized admin users connect securely to an AWS Transfer Family SFTP endpoint using IAM-authenticated credentials to upload a new product update file.
  2. Secure Storage: Uploaded files are stored in a dedicated, versioned Amazon S3 bucket with encryption at rest (AES-256) and strict access control policies.
  3. Event Trigger: S3 triggers an Amazon SQS event, notifying the system that a new update file has been uploaded.
  4. Automated Data Processing: An AWS Lambda function parses the CSV file, validates the data format, and automatically updates product records in Amazon DynamoDB (used as a structured product catalog store).
  5. Logging and Audit Trail: All actions, uploads, updates, validation errors, are logged in Amazon CloudWatch for full auditability and transparency.
  6. Error Handling: If data validation fails, the system automatically sends the file to a Dead Letter Queue (DLQ) for review, ensuring no corrupted updates reach production.

Partnership with KTM One

KTM One provided strategic AWS guidance and technical enablement throughout the deployment:

  • Designed a multi-AZ, high-availability architecture
  • Implemented IAM and encryption policies following AWS Security best practices
  • Developed a CloudFormation-based infrastructure for consistent environment setup
  • Delivered training to NiziStore’s internal DevOps and operations teams for ongoing management

This collaboration ensured the solution aligned with the AWS Well-Architected Framework, covering the pillars of Security, Operational Excellence, and Reliability.

Long-Term Impact

Since implementing the new AWS-based product update workflow, NiziStore achieved:

  • 90% reduction in manual update time
  • Complete auditability for all admin upload actions
  • Accelerated update cycles, enabling price or inventory changes to go live within minutes
  • Consistent and compliant deployments via CloudFormation templates

Conclusion

By leveraging AWS Transfer Family, S3, Lambda, and DynamoDB, deployed through CloudFormation, NiziStore has built a secure, automated, and scalable product management platform. What was once a slow, manual process now runs as a fully automated, self-healing system, reducing errors, improving operational speed, and ensuring that customers always see the most accurate product information and pricing.

With KTM One’s continued partnership, NiziStore’s infrastructure remains ready for expansion, supporting new products, higher data volumes, and future integrations with ERP and CRM systems, all while maintaining AWS-grade reliability and security.

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