在亚马逊网络服务pinpoint (NodeJS)中，当用户触发客户事件时如何触发电子邮件

const AWS = require('aws-sdk');
const pinpoint = new AWS.Pinpoint();

const sendEmailNotification = async (userId, emailTemplateId, emailContent) => {
  const params = {
    ApplicationId: 'YOUR_PINPOINT_APPLICATION_ID',
    MessageRequest: {
      Addresses: {
        [userId]: {
          ChannelType: 'EMAIL'
        }
      },
      MessageConfiguration: {
        EmailMessage: {
          FromAddress: 'YOUR_SENDER_EMAIL_ADDRESS',
          SimpleEmail: {
            Subject: 'YOUR_EMAIL_SUBJECT',
            HtmlPart: emailContent
          }
        }
      }
    },
    TemplateConfiguration: {
      EmailTemplate: {
        TemplateName: emailTemplateId
      }
    }
  };

  try {
    const result = await pinpoint.sendMessages(params).promise();
    console.log('Email notification sent successfully:', result);
  } catch (error) {
    console.error('Failed to send email notification:', error);
  }
};

// 调用sendEmailNotification函数来发送电子邮件通知
sendEmailNotification('USER_ID', 'EMAIL_TEMPLATE_ID', 'EMAIL_CONTENT');