Tech Stack

A quick overview of the technologies and services that power the superstyle API.

Runtime

Technology	Role
Hono	Ultralight web framework (~14 kB) running on Lambda
AWS Lambda	Serverless compute (ARM64 Graviton, Node.js 22)
Lambda Function URL	Direct HTTPS endpoint — no API Gateway overhead

Storage

Technology	Role
Amazon DynamoDB	API keys, rate limits, usage logs, idempotency cache, image metadata
Amazon S3	Generated image storage (ephemeral and persistent)

AI

Model	Role
Gemini 2.5 Flash	Outfit analysis — identifies clothing items from images
Gemini 2.5 Flash (image generation)	Virtual try-on and style suggestion image generation
Serper	Product search — finds purchase links for identified items

Infrastructure

Technology	Role
AWS SAM	Infrastructure-as-code — Lambda, DynamoDB, S3, CloudFront
CloudFront	CDN + TLS termination for api.meriedith.com
ACM	TLS certificate management
S3 Lifecycle Rules	Automatic cleanup of ephemeral images after 24 hours
DynamoDB TTL	Automatic cleanup of idempotency cache and temporary image metadata

Documentation

Technology	Role
Astro Starlight	Documentation site framework
Pagefind	Client-side full-text search

Tip

The entire API — routing, middleware, and handlers — is a single Lambda function. No containers, no servers, no cold-start optimization needed. Hono + Lambda Function URL keeps the architecture as simple as possible.