Introduction to Route Handlers
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Request and Response
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HTTP Methods and REST Patterns
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Error Responses
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Route Handler File(Sign in required)
Beginner+10 Mana
Njs Challenge JSON Response(Sign in required)
Beginner+10 Mana
HTTP Status Code Selection(Sign in required)
Intermediate+15 Mana
Idempotent Methods(Sign in required)
Intermediate+15 Mana
Dynamic Segments
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Input Validation with Zod
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Query Parameters and Pagination
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Accessing Dynamic Params(Sign in required)
Beginner+10 Mana
Validation Error Status(Sign in required)
Beginner+10 Mana
Catch-All Route Output(Sign in required)
Intermediate+10 Mana
Safe Zod Parsing(Sign in required)
Intermediate+10 Mana
Database with Prisma
+15 Mana
Database Transactions
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CRUD Operations
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Njs Challenge Prisma Singleton(Sign in required)
Intermediate+10 Mana
Successful DELETE Status(Sign in required)
Beginner+10 Mana
Prisma Singleton Purpose(Sign in required)
Intermediate+10 Mana
Transaction Client(Sign in required)
Intermediate+10 Mana
Fetching External APIs
+15 Mana
Caching API Responses
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Rate Limiting External APIs
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Hiding API Keys(Sign in required)
Beginner+10 Mana
Njs Challenge Force Dynamic(Sign in required)
Intermediate+10 Mana
Cache-Control Header(Sign in required)
Intermediate+10 Mana
Retry Backoff Pattern(Sign in required)
Intermediate+15 Mana
Handling File Uploads
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Streaming Responses
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Handling Webhooks
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Njs Challenge Formdata(Sign in required)
Intermediate+10 Mana
Njs Challenge Sse Content Type(Sign in required)
Intermediate+10 Mana
Webhook Security(Sign in required)
Intermediate+10 Mana
Webhook Idempotency(Sign in required)
Advanced+15 Mana
Ready to start Next.js API Routes & Patterns?
16 interactive lessons and 20 hands-on challenges — learn in VS Code, Cursor, or the web.