Utility (Event,Form,Fetch): Form Data to API

var api = async (data) => {
         var options = {
           method: data.method,
           mode: 'cors',
           cache: 'no-cache',
           credentials: 'same-origin',
           headers: {
             'Content-Type': 'application/json'
           },
           redirect: 'follow',
           referrerPolicy: 'no-referrer',
         };
         if(data.method == "POST"){
           options.body = JSON.stringify(data)
         }else if(data.method == "GET"){
           data.url = `${data.url}?${Object.entries(data).reduce((s,e) => {
             s+= `${e[0]}=${e[1]}&`
             return s},"").replace(/&$/g,"")}`
         }
         console.log(data.url)
        var res = await fetch(data.url,options)
        var result = await res.json();
        console.log(result)
    }