每 2 秒获取一次调用，但不希望请求堆积

I am trying to make an API call and I want it to repeat every 2 seconds. However I am afraid that if the system doesn't get a request back in 2 seconds, that it will build up requests and keep trying to send them. How can I prevent this?

这是我尝试获取的操作:

const getMachineAction = async () => {
    try {
        const response = await fetch( 'https://localhost:55620/api/machine/');
        if (response.status === 200) {
            console.log("Machine successfully found.");
            const myJson = await response.json(); //extract JSON from the http response
            console.log(myJson);               
        } else {
            console.log("not a 200");
        }
    } catch (err) {
        // catches errors both in fetch and response.json
        console.log(err);
    }
};

然后我用 setInterval 调用它.

function ping() {
    setInterval(
        getMachineAction(),
        2000
    );        
}

我曾想过在 setInterval 中做一些类似结构的承诺，以确保获取已经工作并完成，但无法使其正常工作.

function callme(){
//This promise will resolve when the network call succeeds
//Feel free to make a REST fetch using promises and assign it to networkPromise
var networkPromise = fetch('https://jsonplaceholder.typicode.com/todos/1');


//This promise will resolve when 2 seconds have passed
var timeOutPromise = new Promise(function(resolve, reject) {
  // 2 Second delay
  setTimeout(resolve, 2000, 'Timeout Done');
});

Promise.all(
[networkPromise, timeOutPromise]).then(function(values) {
  console.log("Atleast 2 secs + TTL (Network/server)");
  //Repeat
  callme();
});
}
callme();