req.write('111') is not work

[1003657663]

Below is my esp8266 code

function sendData(data) {
    var options = {
        host: serverHost, // host name
        port: serverPort,            // (optional) port, defaults to 80
        path: serverPath,           // path sent to server
        method: 'GET',       // HTTP command sent to server (must be uppercase 'GET', 'POST', etc)
        protocol: 'http:',   // optional protocol - https: or http:
        headers: { 'Content-Type': 'application/json' } // (optional) HTTP headers
    };
    var req = http.request(options, function (res) {
        res.on('data', function (data) {
            console.log("HTTP> " + data);
        });
        res.on('close', function (data) {
            console.log("Connection closed");
        });
    });
    req.on('error', function (error) {
        console.log('request error', error);
    })
    req.write(data);
    req.end();
}

sendData('111');

I created a simple node server to accept data

var http = require('http');

http.createServer(function (req, response) {
    // 定义了一个post变量，用于暂存请求体的信息
    var post = '';

    // 通过req的data事件监听函数，每当接受到请求体的数据，就累加到post变量中
    req.on('data', function (chunk) {
        post += chunk;
    });

    // 在end事件触发后，通过querystring.parse将post解析为真正的POST请求格式，然后向客户端返回。
    req.on('end', function () {
        console.log('1111', post);
    });

    response.writeHead(200, { 'Content-Type': 'text/plain' });
    // 发送响应数据 "Hello World"
    response.end('Hello World\n');
}).listen(8888);

the req.write(data); is not work The node service received the request, but did not receive any data I try to pass in data from req.end(‘111’); it still doesn't work

[mariusGundersen]

Can you try using method: 'POST'?

[1003657663]

Can you try using method: 'POST'?

In fact, I use POST, and GET is a compatible solution that was changed later. I tried again. or not, this is the result

this is 8266 code complete

var s1 = new Serial();
s1.setup(9600, { tx: D12, rx: D13 });
var http = require('http');

var serverHost = '10.10.10.5';
var serverPort = '8888';
var serverPath = '/'

function wifiConnect() {
    return new Promise((resolve, reject) => {
        var wifi = require("Wifi");
        wifi.connect('xxxxx', { password: 'xxxxxx' }, function (e) {
            if (e) {
                console.log('error during connect:', e);
                wifi.disconnect();
                reject();
            } else {
                console.log('connected to wifi success');
                wifi.stopAP();
                wifi.save();
                resolve();
            }
        });
    })
}

function sendDataToHomeServer(data, options) {
    options = options || { method: 'GET' };
    var options = {
        host: serverHost, // host name
        port: serverPort,            // (optional) port, defaults to 80
        path: serverPath,           // path sent to server
        method: 'POST',       // HTTP command sent to server (must be uppercase 'GET', 'POST', etc)
        protocol: 'http:',   // optional protocol - https: or http:
        headers: { 'Content-Type': 'application/json' } // (optional) HTTP headers
    };
    var req = http.request(options, function (res) {
        res.on('data', function (data) {
            console.log("HTTP> " + data);
        });
        res.on('close', function (data) {
            console.log("Connection closed");
        });
    });
    req.on('error', function (error) {
        console.log('request error', error);
    })
    req.write('555555'); // this is not work
    req.end('33333');
}

wifiConnect().then(() => {
    setInterval(() => {
        sendDataToHomeServer('openLight');
    }, 2000);
})

// save();

the node coed is not change

• the esp8266 console is:

• the node console is:

Obviously the body of the POST request is not sent

[1003657663]

Can you try using method: 'POST'?

The ineffectiveness has nothing to do with Content-Type: application/json, even if I comment out the header, the result is still the same. Node received the request from esp8266 but did not carry the body, and esp8266 also received the return value from node and printed it out correctly