null parameters from angular - json

Question

I am trying to send parameters from my angular app using httpRequest.
I am getting back Null to my backend server.
I have checked with Postman and Fiddler both work with a json Object.
I have tried changing from Post to Get.
I am using Java RestAPI for the backend with apache Tomcat as the server.
This is my Service for login:
#Injectable({
providedIn: 'root'
})
export class LoginService {
private loginURL='http://localhost:8080/CouponSystemWeb/rest/loginpage/login'
constructor(private http:HttpClient) { }
public login(loginDetailes:LoginDetailes):Observable<LoginDetailes>{
return this.http.post<LoginDetailes>(this.loginURL,loginDetailes,{withCredentials:true})
}
}
This is my Login Component:
import { Component, OnInit } from '#angular/core';
import { LoginDetailes } from 'src/app/Entities/LoginDetailes';
import { LoginService } from 'src/app/services/login.service';
import { Router } from '#angular/router';
#Component({
selector: 'app-login',
templateUrl: './login.component.html',
styleUrls: ['./login.component.css']
})
export class LoginComponent implements OnInit {
public loggedin:boolean;
public loggedClient:string;
public errormessage:string;
public loginDetailes = new LoginDetailes();
constructor(private loginservice:LoginService,private router:Router) { }
ngOnInit() {
this.loggedin=false;
}
public onLogin():void{
const observable=this.loginservice.login(this.loginDetailes);
observable.subscribe((returnedLoginDetailes:LoginDetailes)=>{
alert("Login Aquired");
this.loggedin=true;
if(this.loginDetailes.clientType=="ADMIN"){
this.router.navigate(['/crtComp']);
}
else if(this.loginDetailes.clientType=="COMPANY"){
this.router.navigate(['/login']);
}
else if(this.loginDetailes.clientType=="CUSTOMER"){
this.router.navigate(['/login']);
}else{
alert("Wrong Login Detailes");
}
}, err => {
this.errormessage=err.console.error("Wrong Detailes please Check Again!");
alert(this.errormessage);
}
)}}
This is the login Entity :
export class LoginDetailes{
public name:string
public password:string
public clientType:string
constructor(){
}
}
I have tried ngModel but that didn't fix the problem.
I have tried changing my backend from Post to Get.
The problem happends only in the angular App. I can send parameters with fiddler and Postman without problem.

Answer 1

Ok the answer was not in the component or the service.
the problem was in the HTML i was missing the ngModel two way data binding so my App was sending null's.