Fetch.js
import * as helper from './helper.js'
import Cookies from 'js-cookie'
export default async(url = '', data = {}, type = 'GET', method = 'fetch',body = null) => {
type = type.toUpperCase();
url = url;
if(data){
if (type == 'GET' || type == 'POST') {
let dataStr = ''; //数据拼接字符串
Object.keys(data).forEach(key => {
dataStr += key + '=' + data[key] + '&';
})
if (dataStr !== '') {
dataStr = dataStr.substr(0, dataStr.lastIndexOf('&'));
url = url + '?' + dataStr;
}
}
}
if (method == 'fetch') {
let requestConfig = {
method: type,
headers: {
'Accept': 'application/json',
'Content-Type': 'application/json',
'x-token': Cookies.get('token')
},
mode: "cors",
cache: type =='POST' || type == 'GET'?"no-cache":"no-cache"
}
if(body){
requestConfig.body = JSON.stringify(body);
console.log(url)
console.log(requestConfig)
}
try {
const response = await fetch(url, requestConfig);
const responseJson = await response.json();
helper.log('fetch:' + url);
helper.log(responseJson);
return responseJson
} catch (error) {
throw new Error(error)
}
} else {
return new Promise((resolve, reject) => {
let requestObj;
if (window.XMLHttpRequest) {
requestObj = new XMLHttpRequest();
} else {
requestObj = new ActiveXObject;
}
let sendData = '';
if (type == 'POST') {
sendData = JSON.stringify(data);
}
requestObj.open(type, url, true);
requestObj.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
requestObj.send(sendData);
requestObj.onreadystatechange = () => {
if (requestObj.readyState == 4) {
if (requestObj.status == 200) {
let obj = requestObj.response
if (typeof obj !== 'object') {
obj = JSON.parse(obj);
}
resolve(obj)
} else {
reject(requestObj)
}
}
}
})
}
}
