amazon-web-services - 并行状态合并 Step Function 中的输出

Question

是否可以有以下类型的阶跃函数图，即从 2 个并行状态输出，一个组合状态:



如果是，那么 json 会是什么样子？如果不是，为什么？

Answer 1

有可能如下图所示



并行状态应该是这样的

"MyParallelState": {
  "Type": "Parallel",
  "InputPath": "$",
  "OutputPath": "$",
  "ResultPath": "$.ParallelResultPath",
  "Next": "SetCartCompleteStatusState",
  "Branches": [
    {
      "StartAt": "UpdateMonthlyUsageState",
      "States": {
        "UpdateMonthlyUsageState": {
          "Type": "Task",
          "InputPath": "$",
          "OutputPath": "$",
          "ResultPath": "$.UpdateMonthlyUsageResultPath",
          "Resource": "LambdaARN",
          "End": true
        }
      }
    },
    {
      "StartAt": "QueueTaxInvoiceState",
      "States": {
        "QueueTaxInvoiceState": {
          "Type": "Task",
          "InputPath": "$",
          "OutputPath": "$",
          "ResultPath": "$.QueueTaxInvoiceResultPath",
          "Resource": "LambdaARN",
          "End": true
        }
      }
    }

MyParallelState的输出将按数组填充，来自 Parallel state 中的每个州.他们居住在 ParallelResultPath 内对象并将被传递到 Next 状态

{
  "ParallelResultPath": [
    {
      "UpdateMonthlyUsageResultPath": Some Output
    },
    {
      "QueueTaxInvoiceResultPath": Some Output
    }
  ]
}