javascript - http.ClientRequest 套接字不发出数据事件

Question

我想要TTFB与http模块。唯一的方法(IMO)是向套接字数据事件添加监听器。但这似乎不起作用。

这是一个代码示例。

var http = require('http');

var request = http.request('http://nodejs.org/');
request.end();

request.on('socket', function(socket) {
    socket.once('data', function TTFB() {
        console.log('Never happen');
    });
});

request.on('response', function(response) {
    console.log('status code', response.statusCode);
    response.on('data', function noop(){});

    response.on('end', function() {
        console.log('Bytes read', request.socket.bytesRead);
    });
});

Answer 1

Socket 没有数据事件。尝试在连接上监听。

request.on('socket', function(socket) {
    socket.once('connect', function TTFB() {
        //Socket has been assigned to a request.
    });
});

您可以通过检查套接字对象来查看套接字发出的事件。

_events: {
    end: {
        [Function: g] listener: [Function: onend]
    },
    finish: [Function: onSocketFinish],
    _socketEnd: [Function: onSocketEnd],
    free: [Function],
    close: [
        [Function],
        [Function: socketCloseListener]
    ],
    agentRemove: [Function],
    drain: [Function: ondrain],
    error: [Function: socketErrorListener],
    connect: {
        [Function: g] listener: [Function]
    }
}