loadimags.js

  getImages(URL) {
    let allURLS = []
    return fetch(URL)
    .then((response) => { return response.json(); })
    .then((json) => {
      allURLS.push(json.results);
      let newPhotoList = [...this.state.photoList, ...json.results]
      this.setState({photoList: newPhotoList})
      const nextURL = json.next;
      if (!nextURL) {
        return;
      }
      else {
        this.getImages(nextURL);
      }
    });
  }