Can’t get user id in TS file in Angular

Can’t get user id in TS file in Angular _id: undefined
Http failure response for http://localhost:5000/users/undefined

Service File:
UpdateUser(userID:any,data : any){
return this.httpClient.put(${environment.APIURL}/users/${userID},JSON.stringify(data),this.options)
.pipe(map((res:any)=>{
return res
}))
}