如何调用云端API

为您提供以下四种语言的云端API调用示例，其他语言请您参照示例中的逻辑和加签机制自行实现。

• Java调用示例

  // https://github.com/aliyun/iotx-api-gateway-client
  public static void main(String[] args) throws UnsupportedEncodingException {
      IoTApiClientBuilderParams ioTApiClientBuilderParams = 
        new IoTApiClientBuilderParams();
      ioTApiClientBuilderParams.setAppKey("你的<AppKey>");
      ioTApiClientBuilderParams.setAppSecret("你的<AppSecret>");
      SyncApiClient syncClient = new SyncApiClient(ioTApiClientBuilderParams)    ;
  
      IoTApiRequest request = new IoTApiRequest();
      //设置API的版本
      //调用/cloud/token接口时，不需要传CloudToken，请参见获取云端资源Token接口的代码示例
      //调用其他接口（除获取云端资源Token接口外），都需要先调用获取云端资源Token接口，获取到token后，再传入ApiVer和CloudToken，才可以正常调用
      request.setApiVer("1.0.0");
      request.setCloudToken("CloudTokenXXXXX");
  
      //设置接口的参数
      request.putParam("grantType", "project");
      request.putParam("res", "xxxxx"); //授权的资源ID。grantType为project时，res的值为project的ID。
  
      //请求参数域名、path、request
      //host地址  中国站：api.link.aliyun.com     新加坡：ap-southeast-1.api-iot.aliyuncs.com     美国（弗吉尼亚）：us-east-1.api-iot.aliyuncs.com     德国（法兰克福）：eu-central-1.api-iot.aliyuncs.com
      ApiResponse response = syncClient.postBody("api.link.aliyun.com",
          "/cloud/token", request, true);
      System.out.println( "response code = " + response.getCode() 
                         + " response = " + new String(response.getBody(), "UTF-8"));
  }
                      

• PHP调用示例

  //https://github.com/aliyun/api-gateway-demo-sign-php (第三方PHP库)
  
  <?php
  include_once 'Util/Autoloader.php';
  
  //host地址：
  //中国站：api.link.aliyun.com
  //新加坡：ap-southeast-1.api-iot.aliyuncs.com 
  //美国（弗吉尼亚）：us-east-1.api-iot.aliyuncs.com
  //德国（法兰克福）：eu-central-1.api-iot.aliyuncs.com
  function example() {
      $path      = "/cloud/token";
      $host      = "https://api.link.aliyun.com";
      $appKey    = "你的<AppKey>";
      $appSecret = "你的<AppSecret>"; 
  
      $request = new HttpRequest($host, $path, HttpMethod::POST, $appKey, $appSecret);
      //设置API版本和参数，其中，res为授权的资源ID。grantType为project时，res的值为project的ID。
      $body = '{"id":"xxx","version":"1.0","request":{"apiVer":"1.0.0"},' . 
              '"params":{"grantType":"project","res":"xxx"}}';
  
      //设定Content-Type
      $request->setHeader(HttpHeader::HTTP_HEADER_CONTENT_TYPE, 
                          ContentType::CONTENT_TYPE_JSON);
  
      //设定Accept
      $request->setHeader(HttpHeader::HTTP_HEADER_ACCEPT, 
                          ContentType::CONTENT_TYPE_JSON);
  
      if (strlen($body) > 0) {
          $request->setHeader(HttpHeader::HTTP_HEADER_CONTENT_MD5, 
                              base64_encode(md5($body, true)));
          $request->setBodyString($body);
      }
  
      //指定参与签名的header
      $request->setSignHeader(SystemHeader::X_CA_TIMESTAMP);
  
      $response = HttpClient::execute($request);
      var_dump($response);    
  }
  
  example();
                      

• Python调用示例

  # https://github.com/aliyun/api-gateway-demo-sign-python/
  # -*- coding: utf-8 -*-
  from com.aliyun.api.gateway.sdk import client
  from com.aliyun.api.gateway.sdk.http import request
  from com.aliyun.api.gateway.sdk.common import constant
  
  host = "https://api.link.aliyun.com"
  url = "/cloud/token"
  
  cli = client.DefaultClient(app_key="appKey", app_secret="appSecret")
  
  # construct request
  req_post = request.Request(host=host, protocol=constant.HTTP, url=url, method="POST", time_out=30000)
  body = '{"id":"xxx","version":"1.0","request":{"apiVer":"1.0.0"},"params":{"grantType":"project","res":"xxx"}}'
  req_post.set_body(bytearray(body, encoding="utf8"))
  req_post.set_content_type(constant.CONTENT_TYPE_STREAM)
  print cli.execute(req_post)

• .NET调用示例

  调用示例请参见调用示例。

• Node.js调用示例

  调用示例请参见调用示例。