go get -u github.com/aliyun/alibaba-cloud-sdk-go/sdk

package main

import "github.com/aliyun/alibaba-cloud-sdk-go/sdk"

func main() {
  client, err := sdk.NewClientWithAccessKey("REGION_ID", "ACCESS_KEY_ID", "ACCESS_KEY_SECRET")
  if err != nil {
    // Handle exceptions
    panic(err)
  }
}

package main

import "github.com/aliyun/alibaba-cloud-sdk-go/sdk/requests"

func main() {
  request := requests.NewCommonRequest()        // Make a common request
  request.Method = "GET"                        // Set request method
  request.Product = "CS"                        // Specify product
  request.Domain = "cs.aliyuncs.com"            // Location Service will not be enabled if the host is specified. For example, service with aCertification     type-Bearer Token should be specified
  request.Version = "2015-12-15"                // Specify product version
  request.PathPattern = "/clusters/[ClusterId]" // Specify path rule with ROA-style
  request.Scheme = "https"                      // Set request scheme. Default: http
  request.ApiName = "DescribeCluster"           // Specify product interface
  request.QueryParams["ClusterId"] = "123456"   // Assign values to parameters in the path
  request.QueryParams["RegionId"] = "region_id" // Specify the requested regionId, if not specified, use the client regionId, then default regionId
  request.TransToAcsRequest()                   // Trans commonrequest to acsRequest, which is used by client.
}

package main

import "github.com/aliyun/alibaba-cloud-sdk-go/sdk/requests"

func main() {
  request := requests.NewCommonRequest()                // Make a common request
  request.Method = "POST"                               // Set request method
  request.Product = "Ecs"                               // Specify product
  request.Domain = "ecs.aliyuncs.com"                   // Location Service will not be enabled if the host is specified. For example, service with a   Certification type-Bearer Token should be specified
  request.Version = "2014-05-26"                        // Specify product version
  request.Scheme = "https"                              // Set request scheme. Default: http
  request.ApiName = "CreateInstance"                    // Specify product interface
  request.QueryParams["InstanceType"] = "ecs.g5.large"  // Assign values to parameters in the path
  request.QueryParams["RegionId"] = "region_id"         // Specify the requested regionId, if not specified, use the client regionId, then default regionId
  request.TransToAcsRequest()                           // Trans commonrequest to acsRequest, which is used by client.
}

package main

import (
	"fmt"
	"github.com/aliyun/alibaba-cloud-sdk-go/sdk/requests"
	"github.com/aliyun/alibaba-cloud-sdk-go/services/dysmsapi"
)

func main(){
	client, err := dysmsapi.NewClientWithAccessKey("cn-beijing", "xxxx", "xxx")
	if err != nil {
		panic(err)
	}
	request := requests.NewCommonRequest()
	request.Method = "POST"
	request.Scheme = "https" // https | http
	request.Domain = "dysmsapi.aliyuncs.com"
	request.Version = "2017-05-25"
	request.ApiName = "SendSms"
	request.QueryParams["RegionId"] = "cn-beijing"
	request.QueryParams["PhoneNumbers"] = "xxx"                    
	request.QueryParams["SignName"] = "xxx"                        
	request.QueryParams["TemplateCode"] = "xxx"      
	request.QueryParams["TemplateParam"] = "{\"code\":" + "777777" + "}" 
	response, err := client.ProcessCommonRequest(request)
	fmt.Print( client.DoAction(request, response))
	//  fmt.Print(response)
	if err != nil {
		fmt.Print(err.Error())
	}
	fmt.Printf("response is %#v\n", response)

}