POST req：仅支持绝对 URL

Posted 2023-03-08

【中文标题】POST req：仅支持绝对 URL

【英文标题】：POST req: Only absolute URLs are supported

【发布时间】：2021-03-20 09:14:55

【问题描述】：

我正在编写这个 app.js 客户端文件，它执行对服务器的发布请求（代码如下）：

    const fetch = require('node-fetch');

    /* Function to POST data */
    const postData = async ( url = 'http://localhost/8000/add/', data = )=>
          console.log(data)
          const response = await  fetch(url, 
          method: 'POST', // *GET, POST, PUT, DELETE, etc.
          credentials: 'same-origin', // include, *same-origin, omit
          headers: 
              'Content-Type': 'application/json'
          ,
          body: JSON.stringify(data) // body data type must match "Content-Type" header        
        );
      
        try 
            const newData = await response.json();
            console.log(newData);
            return newData
        catch(error) 
          console.log("errors", error);
          // appropriately handle the error
        
    



  // TODO-Call Function
  postData('/addAnimal', animal: 'girrafe');

当我使用node app.js 运行时，我不断收到此错误：

node .\app.js
 animal: 'girrafe' 
D:\Downloads\FEWD\WebAPIs\N&E\node_modules\node-fetch\lib\index.js:1305
                throw new TypeError('Only absolute URLs are supported');
                      ^

TypeError: Only absolute URLs are supported
    at getNodeRequestOptions (D:\Downloads\FEWD\WebAPIs\N&E\node_modules\node-fetch\lib\index.js:1305:9)
D:\Downloads\FEWD\WebAPIs\N&E\node_modules\node-fetch\lib\index.js:1305
                throw new TypeError('Only absolute URLs are supported');
                      ^

TypeError: Only absolute URLs are supported
    at getNodeRequestOptions (D:\Downloads\FEWD\WebAPIs\N&E\node_modules\node-fetch\lib\index.js:1305:9)
    at D:\Downloads\FEWD\WebAPIs\N&E\node_modules\node-fetch\lib\index.js:1410:19
    at new Promise (<anonymous>)
    at fetch (D:\Downloads\FEWD\WebAPIs\N&E\node_modules\node-fetch\lib\index.js:1407:9)
    at postData (D:\Downloads\FEWD\WebAPIs\N&E\demo\app.js:22:31)
    at Object.<anonymous> (D:\Downloads\FEWD\WebAPIs\N&E\demo\app.js:42:3)

任何关于为什么的建议，将不胜感激。 谢谢

【参考方案1】：

您的 url = 'http://localhost/8000/add' 将默认参数设置为该 URL，然后当您将其作为参数提供时，您使用 '/addAnimal' 覆盖它。您应该提供一个绝对 URL：

postData('http://localhost/8000/addAnimal', animal: 'girrafe');

作为旁注，我很确定 localhost/8000 是一个错字，应该是 localhost:8000。