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