I have a list of different user roles defined in my typescript code:
enum UserRole {
CONSULTANT,
MANAGER,
...
}
There is a REST endpoint /users/id/roles that returns an array of strings representing the roles of a specific user:
[
"CONSULTANT",
"MANAGER",
...
]
Now, I need to map this array in my frontend application. I tried achieving this using the following method:
import {Http} from '@angular/http';
import {Observable} from "rxjs/Observable";
import {plainToClass} from "class-transformer";
...
getUserRoles(id: string): Observable<UserRole[]> {
return this.http.get(`/users/${id}/roles`)
.map(responce => plainToClass(UserRole, responce.json()));
}
However, I encountered the following error:
error TS2345: Argument of type 'typeof UserRole' is not assignable to parameter of type 'ClassType'. Type 'typeof UserRole' provides no match for the signature 'new (...args: any[]): UserRole[]'.
Q: Is there a workaround to convert a string array into an array of enum elements?
Note: My environment includes Typescript 2.5.3 and Angular 5.0.5.