Function Param

Param<T extends string | number | bigint | boolean | null>(
field: string,
assert?: (value: string) => T,
): ParameterDecorator
URL parameter decorator.

@WebSocketRoute.Param() is a parameter decorator function for the URL parameter with type casting and assertion.

It's almost same with the TypedParam, but @WebSocketRoute.Param() is only for WebSocket protocol router function decorated by WebSocketRoute.
Type Parameters
- T extends string | number | bigint | boolean | null
Parameters
- field: string
  URL parameter field name
- Optionalassert: (value: string) => T
Returns ParameterDecorator
- Defined in decorators/WebSocketRoute.ts:161