[Feature] Add overloads in default templates for reportProgress/observe properties

Example:

  public sendConfirmations(businessDate: string, confirmations?: Confirmation[], observe?: 'body', reportProgress?: boolean): Observable<SendConfirmationsResponse>;
  public sendConfirmations(businessDate: string, confirmations?: Confirmation[[], observe?: 'response', reportProgress?: boolean): Observable<HttpResponse<SendConfirmationsResponse>>;
  public sendConfirmations(businessDate: string, confirmations?: Confirmation[[], observe?: 'events', reportProgress?: boolean): Observable<HttpEvent<SendConfirmationsResponse>>;
  public sendConfirmations(businessDate: string, confirmations?: Confirmation[[], observe: any = 'body', reportProgress: boolean = false): Observable<any> {

[tajnymag]

@Lonli-Lokli This works for me. resultFor(Body|Response|Events) gets their types correctly.

interface RequestConfig {
    observe?: 'body' | 'response' | 'events',
    reportProgress?: boolean
}
const RequestConfigDefault: RequestConfig = {
    observe: 'body',
    reportProgress: false
}

class ExampleService {
  public sendConfirmations(businessDate: string, confirmations?: Confirmation[], requestConfig?: RequestConfig & { observe?: 'body' }): Observable<SendConfirmationsResponse>;
  public sendConfirmations(businessDate: string, confirmations?: Confirmation[], requestConfig?: RequestConfig & { observe?: 'response' }): Observable<HttpResponse<SendConfirmationsResponse>>;
  public sendConfirmations(businessDate: string, confirmations?: Confirmation[], requestConfig?: RequestConfig & { observe?: 'events' }): Observable<HttpEvent<SendConfirmationsResponse>>;
  public sendConfirmations(businessDate: string, confirmations?: Confirmation[], requestConfig = RequestConfigDefault): Observable<any> {
    if (requestConfig.observe === 'response') {
        return new Observable<HttpResponse<SendConfirmationsResponse>>();
    }

    if (requestConfig.observe === 'events') {
        return new Observable<HttpEvent<SendConfirmationsResponse>>();
    }

    return new Observable<SendConfirmationsResponse>();
  }
}

const example = new ExampleService();
const resultForBody = example.sendConfirmations('2020-22-06', [], { observe: 'body' });
const resultForResponse = example.sendConfirmations('2020-22-06', [], { observe: 'response' });
const resultForEvents = example.sendConfirmations('2020-22-06', [], { observe: 'events' });

[luisfpg]

Really, reportProgress / observe are not currently handled by the generator. We always generate a parameters object, so we could add a second argument with options. The point is that this will be a significant amount of work, and I don’t currently have time for it. Will leave open.