Question

我在node.js中编写API。

url http://localhost:8000/api/request?connId=19&timeout=8000

当我从 Postman 调用上述API时，需要8秒才能给出响应。与预期相同。

但是当从 curl 调用它时，它会立即提供输出。

curl http://localhost:8000/api/request?connId=19&timeout=8000

代码是：

app.get('/api/request', ( req, res ) => {

    let timeoutID = null;   // return by setTimeout
    let starttime = null;   // time when request is begin
    const time = req.query.timeout;     // time send by client
    const connId = req.query.connId;    // id send by client

    // checking client data is valid or not
    if ( typeof(connId) !== undefined && typeof(time) !== undefined ) {

        starttime = new Date();     // get current time
        starttime = starttime.setMilliseconds(starttime.getMilliseconds()); // convert into millisecon
        // initiate setTimeout
        timeoutID = setTimeout(() => {
            // remove that element from global array which reqest has been complted
            removeByAttr(timeout, 'connId', connId);
            // res.send({ status: "ok"});       // send response

        }, time);
        // initiate setInterval
        const setInv = setInterval(() => {
            // check timeout [] conatin the current request
            const arrLength = timeout.length && timeout.filter(({ connId }) => req.query.connId === connId).length;

            if ( arrLength === 0 ) {
                res.send({ status: "ok"}); // send response
                clearInterval(setInv);      // clear/destroy current Interval
            }

        }, 80);

        // insert the current request into global [] timeout
        timeout.push({
            connId,
            time,
            timeoutID,
            starttime,
            'endtime': +starttime + +time
        });
    } 
});

Answer 1

正如我从您的代码中发现的那样curl tutorial that当您使用curl获取端点时，您的命令应该是这样的：

curl "http://localhost:8000/api/request?connId=19&timeout=8000"

如果网址中没有双重倒置的逗号，console.log(req.query)将导致{ connId: '19' }导致问题。

卷毛和邮差给出不同的回应？

1 个答案: