Why doesn't typescript throw an exception for incorrect interface inheritance?

Question

typescript

export interface Response {
  success: boolean;
  error: string;
  data: {
    token: string;
    user: object;
  };
}

this.http.post<Response>(`${environment.api}/some-route`, {})
      .subscribe((response: Response) => {
        console.log(response)
      })

A response arrives from the back, which does not correspond to the interface at all.
But here's the question, why doesn't he swear at the wrong response? The console is silent.
I can send anything from the back and the typescript will not swear, although it seemed to me that interfaces are needed for this in order to "typify" the whole thing. At least swear at the required data in Response.

Answer 1

In every first textbook on TS, somewhere at the very beginning it is written that TS does not exist at runtime, so it cannot check anything there.
Have a look at io-ts and similar libraries for runtime validation
https://gcanti.github.io/io-ts/