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This module connects your 10Q Inference Lambda to a browser-based front end. By the end you will have a working React application — hosted on AWS Amplify — that lets a user select a company, filing period, and question, then displays the LLM-generated answer.

The module is the midpoint deliverable of the course: everything before it builds backend services; everything after it extends or secures the full stack. Completing it proves your Lambda, your deployment pipeline, and your front-end tooling all work together end to end.

Technology choices

Layer	Tool	Why
Hosting & backend orchestration	AWS Amplify Gen 2	Declarative infrastructure, sandbox dev environments, CI-friendly deploys
Build tool	Vite	Fast HMR, native ESM, zero-config React support
UI components	Amplify UI for React	Accessible, themeable primitives that integrate with Amplify data and auth
Auth (later)	Amazon Cognito via Amplify Auth	Token-based identity with minimal custom code

Module sequence

Page	What you will do
Amplify Gen 2 Setup	Initialize a Vite + React project with Amplify Gen 2 and deploy a sandbox
Build the Chat Form	Compose a query form from Amplify UI components and render inference results
Connect to Lambda via API Gateway	Wire the form to your 10Q Inference Lambda through an HTTP API
Authentication with Cognito	Add sign-in/sign-up and protect the API route with a JWT authorizer

Prerequisites

• A deployed 10Q Inference Lambda that accepts requests conforming to the Lambda Contract

• Node.js LTS and npm installed

• An AWS account with Amplify and Bedrock access enabled (Setup: AWS Account)

• Git configured with a remote repository (GitHub Setup)

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Last verified: 2026-06