javascript - 添加代码智能到nodejs中的rest api链接

Question

我有一个nodejs应用程序，它监听对其进行的休息调用。但是，我想为我的代码添加一些智能。

例如，我只想每 5 分钟为给定的调用执行一个函数。因此，即使有人每秒或每分钟调用一次其余链接，我也只想每 5 分钟执行一次。我如何实现这种灵 active ？

随机调用nodejs服务器

http:// abc.com/pager/a     is called 100 times within 5 minutes should only execute the function once for the first call and must resume executing the function after 5 minutes 
http:// abc.com/pager/b
http:// abc.com/pager/c

示例代码

app.post('/pager/:room',function(req,res){

var room = req.params.room;

if( room == 'a'){
    console.log("Room A called");
    //execute function once every 5 minutes only for room a  
    func1(room)
}

else if( room == 'b'){
    console.log("Room B called");
    //execute function once every 5 minutes only for room b
    func1(room)
}

else if( room == 'c'){
    console.log("Room C called");
    //execute function once every 5 minutes only for room c
    func1(room)
}


});

Answer 1

这是一个通用函数，它返回另一个函数，该函数在调用后将自身禁用指定的毫秒数。

function tempDisableAfterCall(fn, ms) {
  var timeToReset = 0;

  return function() {
    var currentTime = new Date().getTime();
    if (currentTime < timeToReset) {
      return;
    } else {
      timeToReset = currentTime + ms;
      fn.apply(this, arguments);
    }
  }
}

// Function that will be temporarily disabled
function printNumber(num) {
  console.log(num)
}

// Create a modified function that is disabled after it has been called
var printNumberWait = tempDisableAfterCall(printNumber, 5000);

// Call the function every 500 ms, but you will only see a log every 5 seconds
setInterval(function() {
  printNumberWait(new Date().getTime());
}, 500)