国美Gome API 调用示例（Node.JS）

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var dateUtils = require("date-utils");
var crypto = require('crypto');
var blueBird = require('bluebird');
var http = require('http');
var querystring = require('querystring');

var dateFormat = "YYYY-MM-DD HH24:MI:SS";

var apiUrl = "http://api.coo8.com/ApiControl";
var apiVer = "2.0";
var appSecret = "*";
var venderId = "*";
var signMethod = "md5";

var md5 = crypto.createHash('md5');

var execute = function(requestData, callback) {
  requestData.timestamp = (new Date()).toFormat(dateFormat);
  requestData.venderId = venderId;
  requestData.v = apiVer;
  requestData.signMethod = signMethod;
  requestData.sign = signRequest(requestData);
  console.log(requestData);
  var url = apiUrl + '?' + querystring.stringify(requestData);
  http.get(url, function(res) {
    var data = [];
    res.on('data', function(chunk) { data.push(chunk); });
    res.on('end', function() {
      var body = data.join('');
      try {
        var json = JSON.parse(body);
        callback(null, json);
      }
      catch (ex) {
        console.log(body);
      }
    })
  }).on('error', callback);
};

var execAsync = blueBird.promisify(execute);

var signRequest = function(requestData) {
  var builder = [appSecret];
  Object.keys(requestData).sort().forEach(function(key) {
    var value = requestData[key];
    if (key == 'sign' || value === null || value === undefined)
      return;

    builder.push(key);
    builder.push(value);
  });
  builder.push(appSecret);
  var textToSign = builder.join('');
  return md5.update(textToSign).digest('hex').toUpperCase();
}

execAsync({ "method": "coo8.carriers.get"}).then(function(data) {
  console.log(JSON.stringify(data, null, 2));
}).catch(function(err) {
  console.log(err);
})
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