http-clientp

• 支持基于http、https、proxy的请求
• 支持回调函数附带数据
• 支持设置超时时间
• 支持使用函数返回代理
• 具体用法见test/test.js
• 运行test请先安装mocha
• 运行test请启动本地8888端口的代理,fiddler或者charles或者其他代理都可以

---

httpcontext模板格式：

{
	"request":{
		"proxy":{"host":"127.0.0.1","port":8888},//设置请求代理，共两种设置方式，任选其一即可
		"http_proxy":"http://127.0.0.1:8888",    //设置请求代理，共两种设置方式，任选其一即可
		"headers":{},		
		"encode":true,   //是否对url进行encodeURI操作，默认为true
		"timeout":"1000", //请求超时
		"postdata":"a=1&b=1"    //post请求参数,
		 options: { 
                    method: 'GET',
                    path: 'https://www.npmjs.com/package/http-clientp' 
                   }
	},
	"response":{
		"charset":"",//返回编码
		"statusCode":200
	},
	"data":{             //附带数据
	    "key":"value",
	    "key1":"value1"
	}
}

---

• 基础用法

var options = {
    "method":"GET",
    "path":"https://www.baidu.com/"
};
httpClient.request(options, function (err, body, res, httpContext) {
    console.log(res.statusCode)
});
****GET
var httpcontext = httpClient.build_httpcontext('GET', {'key': 'value', 'url': 'https://www.baidu.com/'}, null, {'host': '127.0.0.1', 'port': 8888}, 1000);
httpClient.request(httpcontext.request.options, function (err, body, res, httpContext) {
    console.log(res.statusCode);
    console.log(httpContext.data.key);
    console.log(httpContext.data.url);
}, httpcontext);
****POST
var httpcontext = httpClient.build_httpcontext('POST', {
    'key': 'value',
    'url': test_url
}, 'a=1&b=2&c=3', {'host': '127.0.0.1', 'port': 8888}, 1000);
httpClient.request(httpcontext.request.options, function (err, body, res, httpContext) {
    console.log(res.statusCode);
    console.log(httpContext.data.key);
    console.log(httpContext.data.url);
}, httpcontext);

• get请求

 httpClient.get('https://www.baidu.com/', function (err, body, res, httpContext) {
    console.log(res.statusCode)
 });

• 超时请求

var httpcontext = {'request': {'timeout': 1000}};
httpClient.get(test_url, function (err, body, res, httpContext) {
    console.log(res.statusCode)
}, httpcontext);

• 代理请求

var httpcontext = {'request': {'proxy': {'host': '127.0.0.1', 'port': 8888}}};
httpClient.get(test_url, function (err, body, res, httpContext) {
    console.log(res.statusCode)
}, httpcontext);

• 代理请求，http_proxy方式

var httpcontext = {'request': {'http_proxy': 'http://127.0.0.1:8888'}};
httpClient.get(test_url, function (err, body, res, httpContext) {
    console.log(res.statusCode)
}, httpcontext);

• 代理请求，http_proxy方式,支持proxy auth

var httpcontext = {'request': {'http_proxy': 'http://username:password@127.0.0.1:8888'}};
httpClient.get(test_url, function (err, body, res, httpContext) {
    console.log(res.statusCode)
}, httpcontext);

• 将请求的数据附带到结果中

var httpcontext = httpClient.build_httpcontext('GET', {'key': 'value', 'city':'北京'});
httpClient.get(test_url, function (err, body, res, httpContext) {
    console.log(res.statusCode)
    console.log(httpContext.data.key)
    console.log(httpContext.data.city)
}, httpcontext);

• 根据同步函数设置代理

var httpcontext = httpClient.build_httpcontext('GET', {'key': 'value', 'url': test_url});
httpcontext.proxymodel = 'dynamic';
httpcontext.callback = function (httpcontext) {
    console.log(httpcontext.res.statusCode)
};
httpClient.request_select_proxy(httpcontext, function (callback) {
    var http_proxy = syncProxy();//根据函数获取代理,代理是动态获取的时候可以用此种方法
    httpcontext.request.http_proxy = http_proxy;
    callback(httpcontext);
});
function syncProxy() {
    return '127.0.0.1:8888';
}

• 根据异步函数设置代理

var httpcontext = httpClient.build_httpcontext('GET', {'key': 'value', 'url': test_url});
httpcontext.proxymodel = 'dynamic';
httpcontext.callback = function (httpcontext) {
    console.log(httpcontext.res.statusCode)
};
httpClient.request_select_proxy(httpcontext, function (callback) {
    asyncProxy(function (http_proxy) {
        httpcontext.request.http_proxy = http_proxy;
        callback(httpcontext);
    })
});
function asyncProxy(calback) {
    calback(proxy_url);
}

• 设置头

var httpContext = {'request': {'headers': {"Cookie": "a=a"}}};
httpClient.get({'path': test_url, 'headers': {"Cookie": "b=b"}}, function (err, body, res, httpContext) {
    console.log(httpContext.request.headers.Cookie)
    console.log(res.statusCode)
}, httpContext);

var httpClient = require('../lib/http-clientp');
var fs = require('fs');
var httpcontext = {
    'request': {
        'http_proxy': 'http://127.0.0.1:8888',
        'headers': {'Content-Type': 'image/jpeg;charset=UTF-8', 'Accept': 'image/webp,image/apng,image/*,*/*;q=0.8'}
    }, 'response': {'charset': 'buffer'}
};
httpClient.get('http://202.109.191.178:8081/wt-web/captcha?0.4344325280246917', function (err, body, res, httpContext) {
    fs.writeFileSync("/Users/jgm/Downloads/chrome/captcha.png", body);
}, httpcontext);