Chrome 中用于重复获取 URL 的代码段不起作用

Question

我可以在 Chrome 控制台中使用此代码向 localhost 上的 URL 发出 post 请求：

fetch("http://localhost:50014/api/myapi/", {"credentials":"omit","headers":{"accept":"*/*","accept-language":"en-GB,en-US;q=0.9,en;q=0.8","cache-control":"no-cache","content-type":"application/json","pragma":"no-cache","sec-fetch-mode":"cors","sec-fetch-site":"cross-site","x-api-key":"abc123"},"referrerPolicy":"no-referrer","body":"{\"nodeIds\":[\"ABC123\"]}","method":"POST","mode":"cors"});

我在开发者工具中将此代码用作 Chrome 'Snippet'，尝试重复发出 post 请求，用于我正在尝试的某些测试目的识别错误：

while(1==1) {
fetch("http://localhost:50014/api/myapi/", {"credentials":"omit","headers":{"accept":"*/*","accept-language":"en-GB,en-US;q=0.9,en;q=0.8","cache-control":"no-cache","content-type":"application/json","pragma":"no-cache","sec-fetch-mode":"cors","sec-fetch-site":"cross-site","x-api-key":"abc123"},"referrerPolicy":"no-referrer","body":"{\"nodeIds\":[\"ABC123\"]}","method":"POST","mode":"cors"});
setTimeout(() => {  console.log("waiting"); }, 1000);
}

但是我从来没有看到POST请求生效，控制台也没有。为什么？

更新

谢谢@Jaromanda X。我对此进行了更新，但它仍然不是运行。为什么？

while(1==1){
  callApi();
  sleep(5000);
}

function callApi() {
    fetch("http://localhost:50014/api/myapi/", {"credentials":"omit","headers":{"accept":"*/*","accept-language":"en-GB,en-US;q=0.9,en;q=0.8","cache-control":"no-cache","content-type":"application/json","pragma":"no-cache","sec-fetch-mode":"cors","sec-fetch-site":"cross-site","x-api-key":"abc123"},"referrerPolicy":"no-referrer","body":"{\"nodeIds\":[\"ABC123\"]}","method":"POST","mode":"cors"});
}

function sleep(milliseconds) {
   var currentTime = new Date().getTime();

   while (currentTime + milliseconds >= new Date().getTime()) {
   }
}

Answer 1

如果你想在一段时间后重复请求，你可以像下面这样使用setInterval:

setInterval(()=>{

fetch("http://localhost:50014/api/myapi/", {"credentials":"omit","headers":{"accept":"*/*","accept-language":"en-GB,en-US;q=0.9,en;q=0.8","cache-control":"no-cache","content-type":"application/json","pragma":"no-cache","sec-fetch-mode":"cors","sec-fetch-site":"cross-site","x-api-key":"abc123"},"referrerPolicy":"no-referrer","body":"{\"nodeIds\":[\"ABC123\"]}","method":"POST","mode":"cors"});

},5000)

Chrome 中用于重复获取 URL 的代码段不起作用

Code snippet in Chrome to repeatedly fetch URL doesn't work

javascript

google-chrome

fetch-api