我如何能使出站HTTP POST请求,与数据,在node.js?
当前回答
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
});
}
其他回答
请求现在已弃用。建议您使用替代方案
无特定顺序且极不完整的:
const https = require('https'); node-fetch axios 得到了 搞 弯曲 make-fetch-happen unfetch tiny-json-http 针 urllib
统计比较 一些代码示例
最初的回答:
如果使用请求库,这将变得容易得多。
var request = require('request');
request.post(
'http://www.yoursite.com/formpage',
{ json: { key: 'value' } },
function (error, response, body) {
if (!error && response.statusCode == 200) {
console.log(body);
}
}
);
除了提供一个不错的语法,它使json请求更容易,处理oauth签名(twitter等),可以做多部分的表单(例如上传文件)和流。
安装请求使用npm install request命令
下面是一个使用node.js向谷歌编译器API发出POST请求的例子:
// We need this to build our post string
var querystring = require('querystring');
var http = require('http');
var fs = require('fs');
function PostCode(codestring) {
// Build the post string from an object
var post_data = querystring.stringify({
'compilation_level' : 'ADVANCED_OPTIMIZATIONS',
'output_format': 'json',
'output_info': 'compiled_code',
'warning_level' : 'QUIET',
'js_code' : codestring
});
// An object of options to indicate where to post to
var post_options = {
host: 'closure-compiler.appspot.com',
port: '80',
path: '/compile',
method: 'POST',
headers: {
'Content-Type': 'application/x-www-form-urlencoded',
'Content-Length': Buffer.byteLength(post_data)
}
};
// Set up the request
var post_req = http.request(post_options, function(res) {
res.setEncoding('utf8');
res.on('data', function (chunk) {
console.log('Response: ' + chunk);
});
});
// post the data
post_req.write(post_data);
post_req.end();
}
// This is an async file read
fs.readFile('LinkedList.js', 'utf-8', function (err, data) {
if (err) {
// If this were just a small part of the application, you would
// want to handle this differently, maybe throwing an exception
// for the caller to handle. Since the file is absolutely essential
// to the program's functionality, we're going to exit with a fatal
// error instead.
console.log("FATAL An error occurred trying to read in the file: " + err);
process.exit(-2);
}
// Make sure there's data before we post it
if(data) {
PostCode(data);
}
else {
console.log("No data to post");
process.exit(-1);
}
});
我已经更新了代码,以展示如何从文件中发布数据,而不是硬编码的字符串。它使用异步文件系统。readFile命令来实现这一点,在成功读取后发布实际代码。如果出现错误,则抛出错误,如果没有数据,则进程退出,并显示一个负值以指示失败。
通过使用请求依赖性。
简单的解决方法:
import request from 'request'
var data = {
"host":"127.1.1.1",
"port":9008
}
request.post( baseUrl + '/peers/connect',
{
json: data, // your payload data placed here
headers: {
'X-Api-Key': 'dajzmj6gfuzmbfnhamsbuxivc', // if authentication needed
'Content-Type': 'application/json'
}
}, function (error, response, body) {
if (error) {
callback(error, null)
} else {
callback(error, response.body)
}
});
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
});
}
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...
});
推荐文章
- 如何获得请求路径与表达请求对象
- 节点和错误:EMFILE,打开的文件太多
- 没有定义Electron require()
- HTTP 1.1和HTTP 2.0的区别是什么?
- 在摩卡测试时调用异步函数如何避免超时错误:超时超过2000ms
- package.json中属性“private”的目的是什么?
- 用套接字发送消息到指定客户端。IO和node.js
- 当我运行' npm install '时,它返回' ERR!代码EINTEGRITY ' (npm 5.3.0)
- 我如何使用Node.js Crypto创建HMAC-SHA1哈希?
- 如何在package.json中使用“main”参数?
- NPM清洁模块
- 在Node.js中加载基本HTML
- Node.js和CPU密集型请求
- 什么是“升级-不安全-请求”HTTP报头?
- 为什么在节点REPL中没有定义__dirname ?