pouchdb

_httpGetMessages() {
    this.http.get(this.base_url + 'messages').subscribe( (response: any) => {

      console.log('_httpGetMessages', response);
      let value: any = {};
      response.forEach(element => {
        console.log(element);
        value._id = element.slug;
        this._db_messages.get(value._id,  (err, doc) => {
        if (err) {
          console.log('In Error')
          this._db_messages.put(value).then( (result) => {
            console.log('result', result);
          });
        } else {
          console.log('In Not Error')
          value._rev = doc._rev;
          this._db_messages.put(value).then( (result) => {
            console.log('result', result);
          });
        }
      });
      });
    });
  }