Advanced Routing — Series 2

Preview — 3 of 10 questions

What is the resulting URL layout?

javascript

app.setGlobalPrefix('api', {
  exclude: [{ path: 'health', method: RequestMethod.GET }],
});

AEvery route is served twice, once with and once without the prefix

BEvery controller route is served under /api/..., except GET /health, which stays at the root — the usual reason being that load balancers and uptime probes expect a fixed, unversioned path

COnly controllers that declare @Controller({ prefix: true }) receive the prefix

DThe prefix applies to POST routes only; GET routes are left untouched

What does this register?

javascript

@Controller(['cats', 'kittens'])
export class CatsController {
  @Get(':id')
  findOne(@Param('id') id: string) { /* ... */ }
}

ANothing — @Controller() accepts a single string only, so the array is ignored

BOnly /cats/:id; the remaining entries are treated as documentation

C/cats/:id plus a permanent redirect from /kittens/:id

DTwo independent routes, /cats/:id and /kittens/:id, both handled by the same method

For a body of { "name": "Bombay", "age": 3 }, what is injected?

javascript

@Post()
create(@Body('name') name: string, @Body() dto: CreateCatDto) {}

Aname is 'Bombay' and dto is the whole parsed body object

Bname is undefined, because @Body() accepts no arguments

CBoth receive the whole body; the argument is only a label

Dname is 'Bombay' and dto is { age: 3 }, with the extracted key removed

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