我正在使用fetch polyfill从URL中检索JSON或文本,我想知道如何检查响应是JSON对象还是仅文本我使用 Fetch Polyfill 从 URL 获取 JSON 或文本,想要知道如...How to check if the response of a fetch is a json object in javascript
letcheckStatus=res=>{if(res.status>=200&&res.status<300)returnres;else{leterr=newError(res.statusText);err.response=res;throwerr;}}letparseJson=res=>{letdata=res.text();returndata.then(r=>{if(r.length===0)returnnull;elsereturnJSON.parse(r);})}consthttp={apiBaseUrl:config.apiBaseUrl,...
body:"This is a test post",userId:1};try{constresponse=awaitfetch(url,{method:"POST",headers:{"Content-Type":"application/json"},body:JSON.stringify(data)});if(!response.ok){thrownewError(`HTTP error! Status:${response.status
CheckinNote ClassificationNodesErrorPolicy ClientCertificate ClientCertificate ClientContribution ClientContribution ClientContributionNode ClientContributionNode ClientContributionProviderDetails ClientContributionProviderDetails ClientDataProviderQuery ClientDataProviderQuery CloneOperationCommonResponse CloneOperationInformation Clone...
Error FetchError: invalid json response body at https://matdevsolution.com/ reason: Unexpected token < in JSON at position 0 Screenshot:: https://prnt.sc/4Ytg4sZZkHCB URL:: http://localhost:3000/api/page/home My Code export default async (req, res
stringify(response); }, fail: function() { console.info("fetch fail"); } }); } } 说明 默认支持https,如果要支持http,需要在config.json里增加network标签,属性标识 "cleartextTraffic": true。即: { "deviceConfig": { "default": { "network": { "cleartextTraffic": true } ... }...
fetch(url).then(response => response.json())//解析为可读数据 .then(data => console.log(data))//执行结果是 resolve就调用then方法 .catch(err => console.log("Oh, error", err))//执行结果是 reject就调用catch方法 1. 2. 3. 4. 5. 从两者对比来看,fetch代码精简许多,业务逻辑更清晰明了,使...
Also, .json() will return an empty string if body is empty or the response status is 204 instead of throwing a parse error due to an empty body. import ky from 'ky'; const user = await ky('/api/user').json(); console.log(user); ⌨️ TypeScript: Accepts an optional type ...
NOTE: The documentation below is up-to-date with 3.x releases, if you are using an older version, please check how to upgrade. Plain text or HTML import fetch from 'node-fetch'; const response = await fetch('https://github.com/'); const body = await response.text(); console.log(...
API使用NextApiResponse,如下所示: try { // Query data from database const data = methodThatGetsDataFromDatabase() return res.status(200).json({ success: true, data: data }) } catch (error) { return res.status(400).json({ success: false, error: error.message }) ...