前端开发人员在本地搭建node服务,调用接口首先走本地服务,然后转发到api站点,node服务代码如下:
var express = require('express'),
request = require('request'),
bodyParser = require('body-parser'), app = express();
app.use(require('cookie-parser')());
var myLimit = typeof(process.argv[2]) != 'undefined' ? process.argv[2] : '100kb'; app.use(bodyParser());
app.use(express.static(__dirname+'/lingfo'));
app.use('/api', function (req, res, next) { res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Methods", "GET, PUT, PATCH, POST, DELETE");
res.header("Access-Control-Allow-Headers", req.header('access-control-request-headers')); if (req.method === 'OPTIONS') {
res.send();
} else {
//读取cookie
var cookie = require('cookie');
var parse = require('./lib/parse'); var cookies = req.headers.cookie; //保存对象地址,提高运行效率 req.cookies = cookie.parse(cookies); //与express中调用cookie.serialize()对应,解析cookie
req.cookies = parse.JSONCookies(req.cookies); // JSON字符序列转化为JSON对象
console.log(req.cookies['token']); var targetURL = 'http://api.***.com/api';
if (!targetURL) {
res.send(500, { error: 'There is no Target-Endpoint header in the request' });
return;
}
var path='';
if(req.url.indexOf('?')<=0){
path = req.url+'?token='+req.cookies['token'];
}
else{
path = req.url+'&token='+req.cookies['token'];
}
request({ url: targetURL + path, method: req.method, json: req.body, headers: {'Authorization': ''} },
function (error, response, body) {
if (error) {
console.error('error: ' + response.statusCode)
}
}).pipe(res);
}
});
//定制404页面
app.use(function(req,res,next){
res.status(404);
});
app.set('port', process.env.PORT || 80); app.listen(app.get('port'), function () {
console.log('Proxy server listening on port ' + app.get('port'));
});
node接口代理是在一个github的基础上修改的,增加读取认证cookie然后发送到接口站点实现认证的
参考github地址:https://github.com/ccoenraets/cors-proxy