如何使用 Javascript SDK 在 AWS SNS 订阅上设置消息过滤

Question

使用 AWS SNS，我想在将短信端点订阅主题时设置过滤策略。但是我得到这个错误："Delivery protocol SMS does not support message filtering"

我会在这里分享代码...

const AWS = require("aws-sdk")

module.exports.main = async (event) => {
    try {
      const sns = new AWS.SNS()
      const requestBody = event;
      var params = {
        Protocol: 'SMS', /* required */
        TopicArn: 'arn:aws:sns:us-east-1:XXXXXXXX:notification_system', /* required */
        Endpoint: requestBody.phoneNumber,
        Attributes: {
          "FilterPolicy": "{\`number`: [\`Filter1\`]}"
        }
      };
      var subscribePromise = await sns.subscribe(params).promise();

我不确定为什么会收到此错误。我检查过我可以在 AWS 控制台上设置过滤策略，但不能在 sdk 上设置。请帮我找出解决办法。谢谢

Answer 1

对不起，我找到了解决办法。协议参数应为小写 "sms"。代码应该是这样的。

const AWS = require("aws-sdk")

module.exports.main = async (event) => {
    try {
      const sns = new AWS.SNS()
      const requestBody = event;
      var params = {
        Protocol: 'sms', /* required */
        TopicArn: 'arn:aws:sns:us-east-1:XXXXXXXX:notification_system', /* required */
        Endpoint: requestBody.phoneNumber,
        Attributes: {
          "FilterPolicy": "{\`number`: [\`Filter1\`]}"
        }
      };
      var subscribePromise = await sns.subscribe(params).promise();