🌍 Language Translator

Project 3: Language Translator

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What It Is

Multi-language translation using AWS Translate.

Architecture

Browser → S3 → Lambda URL → Translate → Response

AWS Services Used

• S3
• Lambda
• AWS Translate
• IAM
• CloudWatch

What Was Built — File by File

Component	File / Path	Purpose
Backend	backend/lambda_function.py	Translation logic, validation
Frontend	frontend/index.html	UI with language selection
Frontend	frontend/app.js	API calls, char counters
Frontend	frontend/styles.css	Styling (matches P1)

Key Design Decisions

• Used Translate vs LLM
• Auto-detect language
• Function URL simplicity

Deployment

• Lambda URL
• S3 hosting

Estimated Cost

~$7.60/month