Nextjs nestjs integration
NestJS API best-practice skill and adapter pack for coding agents.
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Use for real projects that combine a Next.js frontend/BFF with a NestJS API. Covers ownership boundaries, OpenAPI client generation, session and auth propagation, CORS/proxy contracts, Server Component data fetching, shared environment contracts, and split deployment/runtime alignment.
SKILL.md
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Next.js NestJS Integration
Use this skill when a project has both a Next.js app and a NestJS API. The main job is to keep ownership boundaries clear so the web app does not accidentally duplicate backend policy, bypass API contracts, or self-fetch at build time.
When to Apply
Use this skill when:
- Generating or consuming typed clients from a NestJS OpenAPI document
- Deciding whether logic belongs in Next.js Route Handlers/Server Actions or NestJS controllers/services
- Propagating auth/session context from Next.js to NestJS
- Configuring CORS, cookies, Proxy, rewrites, or internal API origins
- Fetching NestJS data from Server Components without calling the Next.js app's own Route Handlers
- Aligning Docker, environment variables, health checks, and deployment topology across apps
Load On Demand
Start with this file. Load detailed files only when the task needs them:
references/_sections.md
references/integration-openapi-client-boundary.md
references/integration-session-propagation.md
references/integration-cors-proxy-contract.md
references/integration-server-component-fetching.md
references/integration-shared-env-contract.md
references/integration-deployment-split.md
dataset/integration/openapi-client-boundary/correct.ts
sources/inventory.json
Each rule file includes:
- Why the pattern matters
- Incorrect and correct examples
- Dataset path with larger TypeScript examples
- Official source references
Rule Categories by Priority
| Priority | Category | Impact | Prefix |
|---|---|---|---|
| 1 | Integration Boundaries | CRITICAL | integration- |
| 2 | API Contracts | CRITICAL | api- |
| 3 | Deployment & Operations | HIGH | deploy- |
Source Policy
Use this skill together with nextjs-secure-bff, nextjs-production-platform, and nestjs-production-api-contracts when the work spans both apps. Official Next.js and NestJS docs outrank framework-agnostic monorepo examples.