如何在node.js中进行HTTP POST请求?

我如何能使出站HTTP POST请求，与数据，在node.js?

当前回答

Request-Promise提供基于承诺的响应。非2xx的HTTP响应代码将导致承诺被拒绝。这可以通过设置选项来覆盖。简单= false

var options = {
  method: 'POST',
  uri: 'http://api.posttestserver.com/post',
  body: {
  some: 'payload'
 },
  json: true // Automatically stringifies the body to JSON
};

rp(options)
.then(function (parsedBody) {
    // POST succeeded...
})
.catch(function (err) {
    // POST failed...
});

2019-01-24 05:47:13

其他回答

我找到了一个视频来解释如何做到这一点:https://www.youtube.com/watch?v=nuw48-u3Yrg

它使用默认的“http”模块以及“querystring”和“stringbuilder”模块。应用程序从网页中获取两个数字(使用两个文本框)，并在提交时返回这两个数字的和(以及在文本框中持久化的值)。这是我能在其他地方找到的最好的例子。

var http = require("http");
var qs = require("querystring");
var StringBuilder = require("stringbuilder");

var port = 9000;

function getCalcHtml(req, resp, data) {
    var sb = new StringBuilder({ newline: "\r\n" });
    sb.appendLine("<html>");
    sb.appendLine(" <body>");
    sb.appendLine("     <form method='post'>");
    sb.appendLine("         <table>");
    sb.appendLine("             <tr>");
    sb.appendLine("                 <td>Enter First No: </td>");

    if (data && data.txtFirstNo) {
        sb.appendLine("                 <td><input type='text' id='txtFirstNo' name='txtFirstNo' value='{0}'/></td>", data.txtFirstNo);
    }
    else {
        sb.appendLine("                 <td><input type='text' id='txtFirstNo' name='txtFirstNo' /></td>");
    }

    sb.appendLine("             </tr>");
    sb.appendLine("             <tr>");
    sb.appendLine("                 <td>Enter Second No: </td>");

    if (data && data.txtSecondNo) {
        sb.appendLine("                 <td><input type='text' id='txtSecondNo' name='txtSecondNo' value='{0}'/></td>", data.txtSecondNo);
    }
    else {
        sb.appendLine("                 <td><input type='text' id='txtSecondNo' name='txtSecondNo' /></td>");
    }

    sb.appendLine("             </tr>");
    sb.appendLine("             <tr>");
    sb.appendLine("                 <td><input type='submit' value='Calculate' /></td>");
    sb.appendLine("             </tr>");

    if (data && data.txtFirstNo && data.txtSecondNo) {
        var sum = parseInt(data.txtFirstNo) + parseInt(data.txtSecondNo);
        sb.appendLine("             <tr>");
        sb.appendLine("                 <td>Sum: {0}</td>", sum);
        sb.appendLine("             </tr>");
    }

    sb.appendLine("         </table>");
    sb.appendLine("     </form>")
    sb.appendLine(" </body>");
    sb.appendLine("</html>");
    sb.build(function (err, result) {
        resp.write(result);
        resp.end();
    });
}

function getCalcForm(req, resp, data) {
    resp.writeHead(200, { "Content-Type": "text/html" });
    getCalcHtml(req, resp, data);
}

function getHome(req, resp) {
    resp.writeHead(200, { "Content-Type": "text/html" });
    resp.write("<html><html><head><title>Home</title></head><body>Want to some calculation? Click <a href='/calc'>here</a></body></html>");
    resp.end();
}

function get404(req, resp) {
    resp.writeHead(404, "Resource Not Found", { "Content-Type": "text/html" });
    resp.write("<html><html><head><title>404</title></head><body>404: Resource not found. Go to <a href='/'>Home</a></body></html>");
    resp.end();
}

function get405(req, resp) {
    resp.writeHead(405, "Method not supported", { "Content-Type": "text/html" });
    resp.write("<html><html><head><title>405</title></head><body>405: Method not supported</body></html>");
    resp.end();
}

http.createServer(function (req, resp) {
    switch (req.method) {
        case "GET":
            if (req.url === "/") {
                getHome(req, resp);
            }
            else if (req.url === "/calc") {
                getCalcForm(req, resp);
            }
            else {
                get404(req, resp);
            }
            break;
        case "POST":
            if (req.url === "/calc") {
                var reqBody = '';
                req.on('data', function (data) {
                    reqBody += data;
                    if (reqBody.length > 1e7) { //10MB
                        resp.writeHead(413, 'Request Entity Too Large', { 'Content-Type': 'text/html' });
                        resp.end('<!doctype html><html><head><title>413</title></head><body>413: Request Entity Too Large</body></html>');
                    }
                });
                req.on('end', function () {
                    var formData = qs.parse(reqBody);
                    getCalcForm(req, resp, formData);
                });
            }
            else {
                get404(req, resp);
            }
            break;
        default:
            get405(req, resp);
            break;
    }
}).listen(port);

2015-08-07 02:59:53

在为我的项目创建了一个低级实用程序来处理帖子和获取请求之后，我决定在这里发布我的努力。这里有一个关于发送JSON数据的http和https POST请求的代码片段。

const http = require("http")
const https = require("https")

// Request handler function
let postJSON = (options, postData, callback) => {

    // Serializing JSON
    post_data = JSON.stringify(postData)

    let port = options.port == 443 ? https : http

    // Callback function for the request
    let req = port.request(options, (res) => {
        let output = ''
        res.setEncoding('utf8')

        // Listener to receive data
        res.on('data', (chunk) => {
            output += chunk
        });

        // Listener for intializing callback after receiving complete response
        res.on('end', () => {
            let obj = JSON.parse(output)
            callback(res.statusCode, obj)
        });
    });

   // Handle any errors occurred while making request
    req.on('error', (err) => {
        //res.send('error: ' + err.message)
    });

    // Request is made here, with data as string or buffer
    req.write(post_data)
    // Ending the request
    req.end()
};

let callPost = () => {

    let data = {
        'name': 'Jon',
        'message': 'hello, world'
    }

    let options = {
        host: 'domain.name',       // Your domain name
        port: 443,                 // 443 for https and 80 for http
        path: '/path/to/resource', // Path for the request
        method: 'POST',            
        headers: {
            'Content-Type': 'application/json',
            'Content-Length': Buffer.byteLength(data)
        }
    }

    postJSON(options, data, (statusCode, result) => {
        // Handle response
        // Process the received data
    });

}

2017-09-21 08:30:02

发送Rest/JSON请求我们可以简单地使用请求包并保存我们必须在Json变量中发送的值。

首先在控制台中安装require包 NPM安装请求——保存

var request = require('request');

    var options={
                'key':'28',
                'key1':'value',
                'key2':'value'
                }

    request({
             url:"http://dev.api.ean.com/ean-services/rs/hotel/v3/ping?                      
                 minorRev="+options.key+
                 "&cid="+options.key1+
                 "&apiKey="+options.key2,
             method:"POST",
             json:true},function(error,response,body){
                     console.log(body)
               }
    );

2015-02-19 08:45:54

我喜欢超级代理的简单性(https://github.com/visionmedia/superagent)。节点和浏览器上的API相同。

;(async function() {
  var response = await superagent.post('http://127.0.0.1:8125/', {age: 2})
  console.log(response)
})

还有节点获取(https://www.npmjs.com/package/node-fetch)，它有一个API来匹配从浏览器获取-然而这需要手动查询字符串编码，不能自动处理内容类型，或者超级代理所做的任何其他工作。

2013-01-31 00:44:16

有许多可用的开源库，您可以使用它们在Node中发出HTTP POST请求。

1. Axios(推荐)

const axios = require('axios');

const data = {
    name: 'John Doe',
    job: 'Content Writer'
};

axios.post('https://reqres.in/api/users', data)
    .then((res) => {
        console.log(`Status: ${res.status}`);
        console.log('Body: ', res.data);
    }).catch((err) => {
        console.error(err);
    });

2. 针

const needle = require('needle');

const data = {
    name: 'John Doe',
    job: 'Content Writer'
};

needle('post', 'https://reqres.in/api/users', data, {json: true})
    .then((res) => {
        console.log(`Status: ${res.statusCode}`);
        console.log('Body: ', res.body);
    }).catch((err) => {
        console.error(err);
    });

3.请求

const request = require('request');

const options = {
    url: 'https://reqres.in/api/users',
    json: true,
    body: {
        name: 'John Doe',
        job: 'Content Writer'
    }
};

request.post(options, (err, res, body) => {
    if (err) {
        return console.log(err);
    }
    console.log(`Status: ${res.statusCode}`);
    console.log(body);
});

4. 本地HTTPS模块

const https = require('https');

const data = JSON.stringify({
    name: 'John Doe',
    job: 'Content Writer'
});

const options = {
    hostname: 'reqres.in',
    path: '/api/users',
    method: 'POST',
    headers: {
        'Content-Type': 'application/json',
        'Content-Length': data.length
    }
};


const req = https.request(options, (res) => {
    let data = '';

    console.log('Status Code:', res.statusCode);

    res.on('data', (chunk) => {
        data += chunk;
    });

    res.on('end', () => {
        console.log('Body: ', JSON.parse(data));
    });

}).on("error", (err) => {
    console.log("Error: ", err.message);
});

req.write(data);
req.end();

有关详细信息，请查看这篇文章。

2019-09-20 22:11:49

如何在node.js中进行HTTP POST请求?

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