Tips for determining the characteristics of the 'http client'

Can someone help me with defining the http client? I am having issues with this.http.post not functioning correctly. My goal is to send a post request in order to receive a jwt key response from an API endpoint.

import { Inject, Injectable } from '@angular/core';
import { BROWSER_STORAGE } from './storage';
import { User } from './user';
import { Authresponse } from './authresponse';
import { HttpClient } from '@angular/common/http';


@Injectable({
providedIn: 'root'
})

let http = new HttpClient;

export class AuthenticationService {

constructor(@Inject(BROWSER_STORAGE) private storage: Storage) { }

public getToken(): String | null {
return this.storage.getItem('token1');
}

public saveToken(token: string): void {
this.storage.setItem('token1', token);
}

public login(email:string, password:string ) {
  return this.http.post<User>('http://localhost:3000/login', {email, password})
  .then((authResp: Authresponse) => this.saveToken(authResp.token));
}

Answer №1

It is essential to include the HttpClient service in your constructor:

constructor(
  @Inject(BROWSER_STORAGE) private readonly storage: Storage,
  private readonly http: HttpClient
) {}

Your initial approach was to write http as new HttpClient;, however, this simply inherits the types of HttpClient without creating a new instance.

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