title: Ionic 3 RSS read with rss2json "Unprocessable Entity"
body: <p>I'm having trouble converting RSS to JSON using the rrs2json API with Ionic 3. If I execute the code it gives me the error --> Response {_body: "{" status ":" error "," message ":" <code>rss_url</code> parameter is required."} ", Status: 422, ok: false, statusText:" Unprocessable Entity "}</p>
  
  <p>Code:</p>
  
  <p>noticies.ts</p>
  
  <pre><code>import { Component } from '@angular/core';
  import { IonicPage, NavController, NavParams } from 'ionic-angular';
  import { RssProvider } from '../../providers/rss/rss';
  
  @IonicPage()
  @Component({
    selector: 'page-noticies',
    templateUrl: 'noticies.html',
  })
  export class NoticiesPage {
  rssDataArray: any = [];
  
    constructor(public navCtrl: NavController, public navParams: NavParams, public rssProvider: RssProvider) {
    }
  
    ionViewDidLoad() {
      console.log('ionViewDidLoad NoticiesPage');
      this.Get_RSS_Data()
    }
  
    Get_RSS_Data(){
      this.rssProvider.GetRSS().subscribe(
        data =&gt; {
          this.rssDataArray = data;
          console.log(data);
        }
  
      );
    }
  }
  </code></pre>
  
  <p>providers --> rss --> rss.ts</p>
  
  <pre><code>  import { Injectable } from '@angular/core';
      import {Http} from '@angular/http';
      import 'rxjs/add/operator/map';
  
      @Injectable()
      export class RssProvider {
  
        constructor(public http: Http) {
          console.log('Hello RssProvider Provider');
        }
  
        GetRSS(){
          const RSS_URL: any='http://rss.cnn.com/rss/edition.rss';
          const API: any='XXXXXXXXXXXXXX';
          const count: any =20;
          const API_URL: any ='https://api.rss2json.com/v1/api.json';
          const response = this.http.post(API_URL, {'rss_url': RSS_URL,'api_key': API, 'count': count}).map(res =&gt; res.json());
  
          return response;
        }
  
      }
  </code></pre>
  
  <p>Error --></p>
  
  <p><a href="https://i.stack.imgur.com/LcFHE.png" rel="nofollow noreferrer">Error</a></p>