Interface preHandlerHookHandler<RawServer, RawRequest, RawReply, RouteGeneric, ContextConfig, SchemaCompiler, TypeProvider, Logger>

preHandler is the fourth hook to be executed in the request lifecycle. The previous hook was preValidation, the next hook will be preSerialization.

interface preHandlerHookHandler<RawServer, RawRequest, RawReply, RouteGeneric, ContextConfig, SchemaCompiler, TypeProvider, Logger> ((this, request, reply, done) => void)

Type Parameters

RawServer extends RawServerBase = RawServerDefault
RawRequest extends RawRequestDefaultExpression<RawServer> = RawRequestDefaultExpression<RawServer>
RawReply extends RawReplyDefaultExpression<RawServer> = RawReplyDefaultExpression<RawServer>
RouteGeneric extends RouteGenericInterface = RouteGenericInterface
ContextConfig = ContextConfigDefault
SchemaCompiler extends FastifySchema = FastifySchema
TypeProvider extends FastifyTypeProvider = FastifyTypeProviderDefault
Logger extends FastifyBaseLogger = FastifyBaseLogger

preHandlerHookHandler(this, request, reply, done): void
Parameters
- this: FastifyInstance<RawServer, RawRequest, RawReply, Logger, TypeProvider>
- request: FastifyRequest<RouteGeneric, RawServer, RawRequest, SchemaCompiler, TypeProvider, ContextConfig, Logger, ResolveFastifyRequestType<TypeProvider, SchemaCompiler, RouteGeneric>>
- reply: FastifyReply<RawServer, RawRequest, RawReply, RouteGeneric, ContextConfig, SchemaCompiler, TypeProvider, UndefinedToUnknown<KeysOf<RouteGeneric["Reply"]> extends never
  ? ResolveReplyFromSchemaCompiler<TypeProvider, SchemaCompiler>
  : RouteGeneric["Reply"]>>
- done: HookHandlerDoneFunction
Returns void
- Defined in node_modules/fastify/types/hooks.d.ts:210