Type Alias ExtractParams<T>

ExtractParams: [T] extends [never]
    ? Record<string, string>
    : T extends `${string}:${infer Param}/${infer Rest}`
        ? { [K in Param]: string } & ExtractParams<Rest>
        : T extends `${string}:${infer Param}`
            ? { [K in Param]: string }
            : T extends `${string}[[...${infer Param}]]`
                ? { [K in Param]: string }
                : T extends `${infer Start}[...${infer Param}]`
                    ? Start extends `${string}[` ? never : { [K in Param]: string }
                    : T extends `${string}*` ? { "*": string } : Record<string, string>