RouteInput.json

{
  "Comment": "Input Routing Example",
  "StartAt": "Route Input",
  "States": {
    "Route Input": {
      "Type": "Choice",
      "Default": "Step 1",
      "OutputPath": "$.Input",
      "Choices": [
        {
          "Variable": "$.StartAt",
          "StringEquals": "Step 2",
          "Next": "Step 2"
        },
        {
          "Variable": "$.StartAt",
          "StringEquals": "Step 3",
          "Next": "Step 3"
        }
      ]
    },
    "Step 1": { "Type": "Pass", "Next": "Step 2" },
    "Step 2": { "Type": "Pass", "Next": "Step 3" },
    "Step 3": { "Type": "Pass", "End": true }
  }
}