如何从 Angular 9 中的 GET 请求读取 JSON 对象响应？

我有一个GET返回以下 JSON 对象的请求：

{
    "success": true,
    "timestamp": 1591353365,
    "base": "EUR",
    "date": "2020-06-05",
    "rates": {
        "AED": 4.16005,
        "AFN": 85.969034,
        "ALL": 124.045327,
        "AMD": 540.380668,
        "ANG": 2.009928,
    }
}

为了以角度获取此响应，我有一个使用 API 来检索此对象的服务http.get()：

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

@Injectable({
  providedIn: 'root'
})
export class ForexService {

  api_key = 'my personal key' //Can't give away the key

  constructor(private _http: HttpClient) { }

  latestRates() {
    return this._http.get('http://data.fixer.io/api/latest?access_key='+this.api_key);
  }
}

我有一个订阅此服务可观察的组件文件：

import { Component, OnInit } from '@angular/core';
import { ForexService } from "../forex.service";

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

  data:Array<any>;
  constructor(private forex: ForexService) {
    console.log('Forex component constructor called');
  }

  ngOnInit(): void {
    this.forex.latestRates().subscribe(data => this.data = data);
    }
  }

当我这样做时，我得到的错误是 The 'Object' type is assignable to very few other types. Did you mean to use the 'any' type instead?

如何从此 JSON 对象检索数据？该rates发明的又一目的，是可变长度的。我似乎无法检索该数据。