取得資料集

建立資料集並上傳資料至資料集後，您可以使用 HTTP GET 要求存取資料集。本頁說明如何列出所有資料集、如何取得特定資料集的相關資訊，以及如何從資料集下載資料。

列出所有資料集

將 HTTP GET 要求傳送至列出資料集端點，即可列出所有資料集：

https://mapsplatformdatasets.googleapis.com/v1/projects/PROJECT_NUMBER_OR_ID/datasets

例如：

curl -X GET \
-H 'X-Goog-User-Project: PROJECT_NUMBER_OR_ID' \
-H 'Authorization: Bearer $TOKEN' \
https://mapsplatformdatasets.googleapis.com/v1/projects/PROJECT_NUMBER_OR_ID/datasets

這個呼叫會以下列格式傳回回應：

 
{
  "datasets": [
    {
      "name": "projects/PROJECT_NUMBER_OR_ID/datasets/f57074a0-a8b6-403e-9df1-e8a9e4f9fc46",
      "displayName": "My Test Dataset",
      "versionId": "5fb34e-1405-4ecd-8f81-31f1c07",
      "usage": [
        "USAGE_DATA_DRIVEN_STYLING"
      ],
      "gcsSource": {
        "inputUri": "gs://mybucket/my.csv",
        "fileFormat": "FILE_FORMAT_CSV"
      },
      "createTime": "2023-03-24T14:47:37.308977Z",
      "updateTime": "2023-03-24T14:48:05.053114Z",
      "versionCreateTime": "2023-03-24T14:48:05.053114Z",
      "status": {
        "state": "STATE_COMPLETED"
      }
    },
    {
      "name": "projects/PROJECT_NUMBER_OR_ID/datasets/2c8ae479-96704-89c6435ca959",
      "displayName": "My Other Test Dataset",
      "versionId": "0d2e3-b9da-47cc-819f-7ac67562",
      "usage": [
        "USAGE_DATA_DRIVEN_STYLING"
      ],
      "localFileSource": {
        "fileFormat": "FILE_FORMAT_CSV"
      },
      "createTime": "2023-03-24T14:41:52.579755Z",
      "updateTime": "2023-03-24T14:42:56.784122Z",
      "versionCreateTime": "2023-03-24T14:42:56.784122Z",
      "status": {
        "state": "STATE_COMPLETED"
      }
    }
  ]
}

取得資料集相關資訊

如要取得特定資料集的相關資訊，請將 HTTP GET 要求傳送至同樣包含資料集 ID 的 get 資料集端點：

https://mapsplatformdatasets.googleapis.com/v1/projects/PROJECT_NUMBER_OR_ID/datasets/DATASET_ID

例如：

curl -X GET \
-H 'X-Goog-User-Project: PROJECT_NUMBER_OR_ID' \
-H 'Authorization: Bearer $TOKEN' \
https://mapsplatformdatasets.googleapis.com/v1/projects/PROJECT_NUMBER_OR_ID/datasets/f57074a0-a8b6-403e-9df1-e8a9e4f9fc46

這個要求會以下列格式傳回回應：

{
  "name": "projects/PROJECT_NUMBER_OR_ID/datasets/f57074a0-a8b6-403e-9df1-e8a9e4f9fc46",
  "displayName": "My Test Dataset",
  "versionId": "5fb34e-1405-4ecd-8f81-31f1c07",
  "usage": [
    "USAGE_DATA_DRIVEN_STYLING"
  ],
  "gcsSource": {
    "inputUri": "gs://mybucket/my.csv",
    "fileFormat": "FILE_FORMAT_CSV"
  },
  "createTime": "2023-03-24T14:47:37.308977Z",
  "updateTime": "2023-03-24T14:48:05.053114Z",
  "versionCreateTime": "2023-03-24T14:48:05.053114Z",
  "status": {
    "state": "STATE_COMPLETED"
  }
}

下載資料集

如要從資料集下載資料，請將 HTTP GET 要求傳送至同樣包含資料集 ID 的下載資料集端點：

https://mapsplatformdatasets.googleapis.com/v1/projects/PROJECT_NUMBER_OR_ID/datasets/DATASET_ID:download?alt=media

例如：

curl -X GET -L \
-H 'X-Goog-User-Project: PROJECT_NUMBER_OR_ID' \
-H 'Authorization: Bearer $TOKEN' \
--output LOCAL_LOCATION_TO_OUTPUT \
https://mapsplatformdatasets.googleapis.com/download/v1/projects/PROJECT_NUMBER_OR_ID/datasets/f57074a0-a8b6-403e-9df1-e8a9e4f9fc46:download?alt=media

在這個範例中，您會使用 cURL --output 選項指定保存已下載資料的檔案名稱。舉例來說，下列 --output 標記會指定將資料集下載至名為 myjson.json 的檔案 (該檔案所在的目錄必須用來執行 cURL 指令)：

--output myjson.json

或使用以下標記，將資料下載到 /tmp 目錄中的 myjson.json：

--output /tmp/myjson.json