Learn how to build a scalable, multi-tenant image upload system in NestJS using an API Gateway and Amazon S3.
The system architecture involves Client ➜ API Gateway ➜ Consumer Backend ➜ Amazon S3.
Key goals include keeping the upload API generic, scoping files in S3 based on tenantId and customerId, and routing requests dynamically using a Gateway Proxy Service.
Overall, the approach offers a scalable, maintainable foundation for handling user uploads in multi-tenant environments, suitable for various applications like SaaS platforms, consumer apps, and enterprise tools.