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af-amplify-expertise

Guide AWS Amplify Gen 2 development with four-tier architecture and Lambda-AppSync wiring.

Updated Feb 8, 2026
Search Tags:#architecture#aws#backend#appsync#lambda#amplify
One-click install
npx skills add https://github.com/GainInsightDev/websites --skill af-amplify-expertise
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: af-amplify-expertise
Source: https://github.com/GainInsightDev/websites/tree/main/.claude/skills/af-amplify-expertise
Command: npx skills add https://github.com/GainInsightDev/websites --skill af-amplify-expertise

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill provides clear guidance and best practices for developing applications using AWS Amplify Gen 2, ensuring efficient architecture and avoiding common pitfalls.

Core Features & Use Cases

  • Architectural Guidance: Understand the four-tier architecture (Frontend, BFF, AppSync, Lambda) and where to place logic.
  • Amplify Best Practices: Learn how to wire Lambda functions to AppSync, manage IAM permissions, and handle data operations correctly.
  • Use Case: When building a new feature that requires user authentication and data storage, this Skill helps you determine whether to use an AppSync mutation, a custom Lambda resolver, or a Next.js API route.

Quick Start

Use the af-amplify-expertise skill to understand where to place business logic when building with AWS Amplify Gen 2.

Frequently Asked Questions about af-amplify-expertise

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How does the four-tier architecture work in AWS Amplify Gen 2?▼

The AWS Amplify Gen 2 four-tier architecture separates concerns across Frontend, Backend-for-Frontend, AppSync, and Lambda layers. This structure isolates business logic, ensuring scalable data operations and clear feature placement boundaries.

How do I wire Lambda functions to AppSync in AWS Amplify?▼

To wire Lambda functions to AppSync in AWS Amplify, configure custom Lambda resolvers within your mutations. This approach enables Lambda-first business logic execution while maintaining secure AppSync integration patterns.

When should I use an AppSync mutation versus a custom Lambda resolver?▼

Use an AppSync mutation for standard data operations and a custom Lambda resolver for complex business logic. AWS Amplify Gen 2 guidance helps determine feature placement based on required AWS service integration and IAM permissions.

Why does my AWS Amplify deployment fail with Lambda IAM permission errors?▼

AWS Amplify deployment failures with Lambda IAM permission errors often stem from incorrect data operation scopes. Debugging deployment requires verifying IAM policies and ensuring proper Lambda-AppSync wiring for secure backend access.

Can I use Next.js API routes instead of AppSync for AWS Amplify backend logic?▼

While Next.js API routes handle frontend-adjacent logic, AWS Amplify Gen 2 recommends AppSync and Lambda for backend operations. This ensures proper architecture, manages authentication, and handles data storage efficiently.

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