Seeking input on improving the title of this code snippet. Here's an example that needs your expertise:
type Query = ((...params: any[]) => Promise<any>);
type Resource = {
query: Query;
}
export type Params<T> = T extends ((...params: infer R) => Promise<any>) ? R : any[];
const resource: Resource = {
query: (id: string) => Promise.resolve(id)
}
const inferredResource = {
query: (id: string) => Promise.resolve(id)
}
type ResourceParams = Params<typeof resource['query']>;
type InferredResourceParams = Params<typeof inferredResource['query']>;
The challenge lies in ensuring that the object conforms to the shape defined by Resource, while also inferring its parameters for later use.
In the current setup, either the structure is guaranteed but the inference fails, or vice versa. Is there a way to achieve both goals simultaneously?