config.service.ts

import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http'
import { HttpHeaders } from '@angular/common/http';

import { Autenticar } from './Autenticar'
import { Observable } from 'rxjs';


export interface Config {
    heroesUrl: string;
    textfile: string;
}


@Injectable({
    providedIn: 'root'
})
export class ConfigService {
    
    configUrl = 'assets/config.json';
    url = 'http://localhost:3000/autenticar'
    
    
    
    constructor(private http:HttpClient) {}
    
    autenticate (autenticar: Autenticar): Observable<Autenticar> {
        
        let headers = new HttpHeaders()
        .set('Content-Type', 'application/json')

        console.log(headers)

        return this.http.post<Autenticar>(this.url, autenticar,{headers});
    }
    
}