Call operations

@kubb/plugin-swr turns each operation into an SWR hook that wraps the client function from @kubb/plugin-axios or @kubb/plugin-fetch. Read operations become useFoo with useSWR, write operations become useFoo with useSWRMutation, and every hook is typed from the spec.

Queries

A query hook takes the operation's grouped request config (path, query, headers, whichever the operation declares) as its first argument:

import { useGetPetById } from './gen/hooks/useGetPetById'

const { data, error, isLoading } = useGetPetById({ path: { petId: 1 } })

The second argument holds the SWR configuration plus Kubb-specific switches. query takes any SWRConfiguration, client takes per-call request config for the underlying client, shouldFetch: false makes the key null so SWR skips the request, and immutable: true disables revalidation:

import { useGetPetById } from './gen/hooks/useGetPetById'

useGetPetById(
  { path: { petId: 1 } },
  {
    query: { refreshInterval: 30_000 },
    client: { headers: { 'X-Trace': 'abc' } },
    shouldFetch: petId != null,
  },
)

The key is built by the exported queryKey helper as [{ url, params }], so you can also match it from mutate for cache updates.

Mutations

A mutation hook takes only an options object. The grouped request config travels through trigger(...) as the mutation argument:

import { mutate } from 'swr'
import { useCreatePet } from './gen/hooks/useCreatePet'
import { getPetsQueryKey } from './gen/hooks/useGetPets'

const { trigger, isMutating } = useCreatePet({
  mutation: { onSuccess: () => mutate(getPetsQueryKey()) },
})

await trigger({ body: { name: 'Fluffy' } })

A mutationKey helper is exported next to the hook, and shouldFetch: false sets the key to null so the mutation cannot fire.

Errors and transport

The generated hooks call the client operation with throwOnError: true, so failures surface through the query library's error state, typed from the spec's error responses. Transport concerns (base URL, authentication, interceptors, serialization, validation) live on the client plugin: see the plugin-fetch or plugin-axios guides.