英文:
Selecting specific JSON fields to use in SNS message
问题
我正在尝试构建一个阶段函数，它接收 JSON 作为输入，然后在步函数中通过 SNS 发送消息时仅使用此 JSON 的部分内容。我尝试使用一些可用的 [内置 JSON 操作函数][1]，但没有成功。是否有一种方法可以提取特定的 JSON 字段以用于 SNS 消息，而不使用 Lambda？对于消息字段，我希望它是：message.$: $.name $.questions 等等...但这不起作用以下是我的代码：stepFunctions:stateMachines:hellostepfunc1:name: testdefinition:Comment: "test"StartAt: SNSStateStates:SNSState:Type: TaskInputPath: $Resource: arn:aws:states:::sns:publishParameters:TopicArn:Fn::GetAtt: [ MyTopic, TopicArn ]Message.$: $ //这里我想发送多个，例如 $.name $questionsEnd: true[1]: https://docs.aws.amazon.com/step-functions/latest/dg/amazon-states-language-intrinsic-functions.html#asl-intrsc-func-json-manipulate
英文:
I'm trying to build a step function which receives json as input and then uses only some of this JSON in a message sent via SNS in the step function. I've tried using some of the instrinsic json manipulation functions available but with no luck.
Is there a way to extract specific json fields for an SNS message without using a lambda?
For the message field, I would like the it to be:
message.$: $.name $.questions etc...
But this doesn't work
Here is my code:
stepFunctions:stateMachines:hellostepfunc1:name: testdefinition:Comment: "test"StartAt: SNSStateStates:SNSState:Type: TaskInputPath: $Resource: arn:aws:states:::sns:publishParameters:TopicArn:Fn::GetAtt: [ MyTopic, TopicArn ]Message.$: $ //here I would like to send multiple e.g $.name $questionsEnd: true
答案1
得分: 1
最好的方法是使用AWS Lambda函数。也就是说，开发一个自定义的AWS Lambda函数，可以使用JSON库读取和操作JSON以满足您的业务需求，然后将这些Lambda函数连接到Amazon States Language文档中。
英文:
The best way is to use an AWS Lambda function. That is, develop a custom AWS Lambda function that can read and manipulate JSON to meet your business requirments using a JSON library. Then hook these Lambda functions into an Amazon States Language document.
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