Crear formularios Angular 4

formulario.component.ts

import { Component, OnInit } from '@angular/core';
import { FormGroup, FormControl } from '@angular/forms';
import { FileHolder } from 'angular2-image-upload';

@Component({
  selector: 'app-add-conductor',
  templateUrl: './add-conductor.component.html',
  styleUrls: ['./add-conductor.component.css']
})
export class AddConductorComponent implements OnInit {


// >>>>>Variable para el formulario

  miFormulario: FormGroup;

  constructor() { }

  ngOnInit() {

  // >>>>>Vinculación con html

    this.miFormulario = new FormGroup({
      nombre: new FormControl('',),
      correo: new FormControl(''),
      password: new FormControl(''),
      imagen: new FormControl('')
    });
  }


  // >>>> Función para enviar datos
  
  enviar(){
    console.log('REspuestas form:', this.miFormulario.value);
  }

  onUploadFinished(file: FileHolder) {
    this.miFormulario.controls.imagen.setValue(file);
  }
  

}

formulario.html

<form [formGroup]="miFormulario">

  <div class="form-group">
    <label for="ingresoEmail">Email address</label>
    <input formControlName="correo" type="email" class="form-control" id="ingresoEmail" aria-describedby="emailHelp" placeholder="Enter email">
    <small id="emailHelp" class="form-text text-muted">We'll never share your email with anyone else.</small>
  </div>
  <div class="form-group">
    <label for="exampleInputEmail1">Nombre</label>
    <input formControlName="nombre" type="text" class="form-control" id="exampleInputEmail1" aria-describedby="emailHelp" placeholder="Ingresar nombre">
    <small id="emailHelp" class="form-text text-muted">We'll never share your email with anyone else.</small>
  </div>
  <div class="form-group">
    <label for="exampleInputPassword1">Password</label>
    <input formControlName="password" type="password" class="form-control" id="exampleInputPassword1" placeholder="Password">
  </div>
  <button type="submit" (click)="enviar()" class="btn btn-primary">Submit</button>
  <image-upload (uploadFinished)="onUploadFinished($event)"></image-upload>
</form>

<!---Presentar en pantall-->

<pre>
    {{miFormulario.value | json}}
  </pre>