ResultWriter（Map）

以下示例演示了三个字段（WriterConfig、Resources 和 Parameters）可能组合所采用的配置。

仅限 WriterConfig

此示例配置了状态输出在预览中的呈现方式，输出格式和转换均在 WriterConfig 字段中指定。不存在的 Resource 和 Parameters 字段（原本应提供 Amazon S3 存储桶规范）表示状态输出资源。结果传递到下一个状态。

"ResultWriter": {
    "WriterConfig": { 
        "Transformation": "FLATTEN", 
        "OutputType": "JSON"
    }
}

仅限 Resources 和 Parameters

此示例将状态输出导出到指定的 Amazon S3 存储桶，不会像不存在的 WriterConfig 字段所指定的那样进行额外的格式化和转换。

"ResultWriter": {
    "Resource": "arn:aws:states:::s3:putObject",
    "Parameters": {
        "Bucket": "amzn-s3-demo-destination-bucket",
        "Prefix": "csvProcessJobs"
    }

所有三个字段：WriterConfig、Resources 和 Parameters

此示例会根据 WriterConfig 字段中的规范，将状态输出格式化。它还会根据 Resource 和 Parameters 字段中的规范将其导出到 Amazon S3 存储桶。

"ResultWriter": {
     "WriterConfig": { 
        "Transformation": "FLATTEN",
        "OutputType": "JSON"
    },
    "Resource": "arn:aws:states:::s3:putObject",
    "Parameters": {
        "Bucket": "amzn-s3-demo-destination-bucket",
        "Prefix": "csvProcessJobs"
    }
}

在这些示例中，假设每个子工作流执行都会返回一个输出，该输出是一个对象数组。

[
  {
    "customer_id": "145538",
    "order_id": "100000"
  },
  {
    "customer_id": "898037",
    "order_id": "100001"
  }
]

这些示例演示了不同 Transformation 值的格式化输出，其中 OutputType 为 JSON。

转换 NONE

这是使用 NONE 转换时的处理结果示例。输出保持不变，并且包含工作流元数据。

[
    {
        "ExecutionArn": "arn:aws:states:region:account-id:execution:orderProcessing/getOrders:da4e9fc7-abab-3b27-9a77-a277e463b709",
        "Input": ...,
        "InputDetails": {
            "Included": true
        },
        "Name": "da4e9fc7-abab-3b27-9a77-a277e463b709",
        "Output": "[{\"customer_id\":\"145538\",\"order_id\":\"100000\"},{\"customer_id\":\"898037\",\"order_id\":\"100001\"}]",
        "OutputDetails": {
            "Included": true
        },
        "RedriveCount": 0,
        "RedriveStatus": "NOT_REDRIVABLE",
        "RedriveStatusReason": "Execution is SUCCEEDED and cannot be redriven",
        "StartDate": "2025-02-04T01:49:50.099Z",
        "StateMachineArn": "arn:aws:states:region:account-id:stateMachine:orderProcessing/getOrders",
        "Status": "SUCCEEDED",
        "StopDate": "2025-02-04T01:49:50.163Z"
    },
    ...
    {
        "ExecutionArn": "arn:aws:states:region:account-id:execution:orderProcessing/getOrders:f43a56f7-d21e-3fe9-a40c-9b9b8d0adf5a",
        "Input": ...,
        "InputDetails": {
            "Included": true
        },
        "Name": "f43a56f7-d21e-3fe9-a40c-9b9b8d0adf5a",
        "Output": "[{\"customer_id\":\"169881\",\"order_id\":\"100005\"},{\"customer_id\":\"797471\",\"order_id\":\"100006\"}]",
        "OutputDetails": {
            "Included": true
        },
        "RedriveCount": 0,
        "RedriveStatus": "NOT_REDRIVABLE",
        "RedriveStatusReason": "Execution is SUCCEEDED and cannot be redriven",
        "StartDate": "2025-02-04T01:49:50.135Z",
        "StateMachineArn": "arn:aws:states:region:account-id:stateMachine:orderProcessing/getOrders",
        "Status": "SUCCEEDED",
        "StopDate": "2025-02-04T01:49:50.227Z"
    }
]

转换 COMPACT

这是使用 COMPACT 转换时的处理结果示例。请注意，它是具有原始数组结构的子工作流执行的组合输出。

[
    [
        {
            "customer_id": "145538",
            "order_id": "100000"
        },
        {
            "customer_id": "898037",
            "order_id": "100001"
        }
    ],
    ...,
    
    [
        {
            "customer_id": "169881",
            "order_id": "100005"
        },
        {
            "customer_id": "797471",
            "order_id": "100006"
        }
    ]
]

转换 FLATTEN

这是使用 FLATTEN 转换时的处理结果示例。请注意，它是展平为一个数组的子工作流执行数组的组合输出。

[
    {
        "customer_id": "145538",
        "order_id": "100000"
    },
    {
        "customer_id": "898037",
        "order_id": "100001"
    },
    ...
    {
        "customer_id": "169881",
        "order_id": "100005"
    },
    {
        "customer_id": "797471",
        "order_id": "100006"
    }
]