Spring Boot Tutorial 0/110 lessons ~6 min read Lesson 14“Production-grade backends”

Request Mapping

Spring offers fine-grained mapping by URL, HTTP method, headers, content type and query params.

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3 guided sections

Practice signal

Examples included

Career prep

Foundation builder

Introduction

Spring offers fine-grained mapping by URL, HTTP method, headers, content type and query params. Master it and your API surface becomes self-documenting.

Informative example

@GetMapping(
    path = "/orders",
    params = "status",                   // requires ?status=...
    produces = MediaType.APPLICATION_JSON_VALUE
)
public List<Order> byStatus(@RequestParam OrderStatus status) { ... }

@PostMapping(
    path = "/orders",
    consumes = MediaType.APPLICATION_JSON_VALUE,
    headers  = "X-Idempotency-Key"      // require idempotency header
)
public OrderDto create(@Valid @RequestBody NewOrder cmd) { ... }

Best practices

Pin consumes/produces on writes — prevents content-type surprises.
Use headers = ... to enforce contract requirements like idempotency keys.
Don't overload one path with too many param-based variants — split methods.

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