Help for novice: API to collection

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import { fetch } from 'wix-fetch';
import wixData from 'wix-data';
export function SpEvents(){
    const url = "https://system.spektrix.com/eastbournebandstand/api/v3/events";
    return fetch(url, {"method":"get"})
    .then((httpsResponse) => {
        if(!httpsResponse.ok){
	return Promise.reject("Did Not Succeed");
        }
      return httpsResponse.json();            
     }).then(obj => {
	return wixData.insert("SpektrixDB", obj);
    })
    .catch(err => {
        console.log('err',err);
        return err;
    })
 }

 //and call the function whenever you want: SpEvents();