データを探索します

HERE ポータルでは、データの探索を開始できます。 ポータルでは、ビジネスアナリスト、データサイエンティスト、開発者がカタログやレイヤーを参照、フィルタリング、検索してデータを探索できます。

ヒント

データ、特にカタログ、レイヤー、パーティションの概念を探索する前に、ポータルに表示される内容を理解することをお勧めします。

ナビゲーションバーの [ データ ] をクリックして、アクセス権を持っているカタログおよびレイヤーのリストを表示します。

API を使用してデータを探索します

ポータルを使用して利用できるカタログを確認した後、 HERE Data SDK for Java & Scala または REST API を使用して利用可能なカタログのリストを取得することをお勧めします。

Java for Scala & HERE Data SDK

資格情報の確認」および「カタログへのアクセス 」を参照して、 HERE Map Content カタログ ( すべての従来の HERE Map Data が含まれているカタログ ) にクエリを送信し、最新の利用可能なバージョンを取得するコード スニペット、および発行日、利用可能なレイヤーなど、カタログに関連付けられている一部のメタデータを確認します。 このカタログの作成に使用した入力カタログとの直接の依存関係のリストを参照してください)。 Data SDK for Java & Scala の使用方法の詳細について は、「 Java with the HERE Data SDK for Scala & はじめに」を参照してください。

REST

アクセス権のあるカタログのリストを返すリクエストがあります。

HTTP
丸まりました
GET /config/v1/catalogs HTTP/1.1
Host: <Hostname for config>
Authorization: Bearer <Authorization Token>
Cache-Control: no-cache
curl -X GET
     -H "Authorization: Bearer <Authorization Token>"
     -H "Cache-Control: no-cache"
     https://<Hostname for config>/config/v1/catalogs

応答は、アクセス権を持っているカタログの一覧表です。

{
    "results": {
        "items": [
            {
                "title": "HERE Archived Weather North America",
                "hrn": "<Catalog HRN>",
                "href": "https://config.data.api.platform.here.com/config/v1/catalogs/<Catalog HRN>",
                "type": "urn:olp-types:catalog"
            },
            {
                "title": "HERE Archived Weather Western Europe",
                "hrn": "<Catalog HRN>",
                "href": "https://config.data.api.platform.here.com/config/v1/catalogs/<Catalog HRN>",
                "type": "urn:olp-types:catalog"
            },
            {
                "title": "HERE Live Weather North America",
                "hrn": "<Catalog HRN>",
                "href": "https://config.data.api.platform.here.com/config/v1/catalogs/<Catalog HRN>",
                "type": "urn:olp-types:catalog"
            },
            {
                "title": "HERE Live Weather Western Europe",
                "hrn": "<Catalog HRN>",
                "href": "https://config.data.api.platform.here.com/config/v1/catalogs/<Catalog HRN>",
                "type": "urn:olp-types:catalog"
            },
            {
                "title": "HERE Map Content",
                "hrn": "<Catalog HRN>",
                "href": "https://config.data.api.platform.here.com/config/v1/catalogs/<Catalog HRN>",
                "type": "urn:olp-types:catalog"
            },
            {
                "title": "HERE Real Time Traffic",
                "hrn": "<Catalog HRN>",
                "href": "https://config.data.api.platform.here.com/config/v1/catalogs/<Catalog HRN>",
                "type": "urn:olp-types:catalog"
            },
            {
                "title": "HERE Weather Forecast",
                "hrn": "<Catalog HRN>",
                "href": "https://config.data.api.platform.here.com/config/v1/catalogs/<Catalog HRN>",
                "type": "urn:olp-types:catalog"
            }
        ]
    }
}

カタログの HERE リソースネーム ( HERE リソースネーム )を使用して、カタログの詳細を取得できます。 この例では、 HERE リソースネーム はです here:here:data:::olp-traffic-1

HTTP
丸まりました
GET /config/v1/catalogs/hrn:here:data:::olp-traffic-1 HTTP/1.1
Host: config.data.api.platform.here.com
Authorization: Bearer <Authorization Token>
Cache-Control: no-cache
curl -X GET
     -H "Authorization: Bearer <Authorization Token>"
     -H "Cache-Control: no-cache"
     https://<Hostname for config>/config/v1/catalogs/hrn:here:data:::olp-traffic-1

応答の本文には、カタログの詳細が含まれています。

{
    "id": "olp-traffic-1",
    "hrn": "hrn:here:data:::olp-traffic-1",
    "name": "HERE Real Time Traffic",
    "summary": "HERE Real Time Traffic provides live information on traffic conditions on roadways.",
    "description": "HERE Real Time Traffic provides a live depiction of conditions on the road. It identifies where, when and why traffic congestion occurs, and delivers up-to-the-minute information on the road conditions and incidents that could set a driver back.\n\nReal-time traffic data is produced by a sophisticated model that aggregates and analyzes a mix of sources, including high-quality rich vehicle sensor data.\n\nThe result: best-in-class accuracy in depicting real-world traffic conditions.\n\nHERE Real Time Traffic consists of two layers. The Traffic Flow layer provides the speed at which traffic is currently flowing, by road. The Traffic Incident layer contains records for incidents that are currently affecting traffic flow.",
    "contacts": {},
    "coverage": {
        "adminAreas": [
            "VN",
            "IN",
            "KW",
            "ID",
            "BG",
            "SG",
            "TH",
            "AT",
            "TR",
            "MY",
            "RU",
            "GI",
            "PR",
            "TW",
            "PH",
            "ES",
            "SM",
            "NZ",
            "US",
            "SI",
            "BH",
            "AD",
            "RO",
            "LU",
            "IE",
            "BE",
            "AU",
            "SA",
            "HU",
            "FI",
            "NO",
            "EE",
            "LT",
            "PL",
            "CH",
            "LV",
            "SE",
            "AE",
            "AR",
            "HR",
            "GB",
            "FR",
            "PT",
            "MC",
            "UA",
            "LI",
            "BR",
            "IT",
            "CZ",
            "GR",
            "ZA",
            "OM",
            "MX",
            "SK",
            "QA",
            "DK",
            "NL",
            "CA",
            "IM",
            "VA",
            "DE"
        ]
    },
    "owner": {
        "creator": {
            "id": "HERE-383016a9-fa93-44c0-8294-a156a9df650d"
        },
        "organisation": {
            "id": "olp-here"
        }
    },
    "tags": [
        "TRAFFIC"
    ],
    "billingTags": [],
    "created": "2018-01-24T22:20:07.462Z",
    "layers": [
        {
            "id": "traffic-flow",
            "hrn": "hrn:here:data:::olp-traffic-1:traffic-flow",
            "name": "Traffic Flow",
            "summary": "Current traffic speeds",
            "description": "The traffic flow layer provides the current speed of traffic on roads. Powered by HERE Traffic, the speeds are updated every minute.\n\nEach tile contains Protobuf data, which is a list of all the current traffic flow messages based on the Traffic schema. Any message which spans across multiple tiles will be reported in all tiles where it exists, with the same ID.",
            "coverage": {
                "adminAreas": [
                    "VN",
                    "IN",
                    "KW",
                    "ID",
                    "BG",
                    "SG",
                    "TH",
                    "AT",
                    "TR",
                    "MY",
                    "RU",
                    "GI",
                    "PR",
                    "TW",
                    "PH",
                    "ES",
                    "SM",
                    "NZ",
                    "US",
                    "SI",
                    "BH",
                    "AD",
                    "RO",
                    "LU",
                    "IE",
                    "BE",
                    "AU",
                    "SA",
                    "HU",
                    "FI",
                    "NO",
                    "EE",
                    "LT",
                    "PL",
                    "CH",
                    "LV",
                    "SE",
                    "AE",
                    "AR",
                    "HR",
                    "GB",
                    "FR",
                    "PT",
                    "MC",
                    "UA",
                    "LI",
                    "BR",
                    "IT",
                    "CZ",
                    "GR",
                    "ZA",
                    "OM",
                    "MX",
                    "SK",
                    "QA",
                    "DK",
                    "NL",
                    "CA",
                    "IM",
                    "VA",
                    "DE"
                ]
            },
            "owner": {
                "creator": {
                    "id": "HERE-383016a9-fa93-44c0-8294-a156a9df650d"
                },
                "organisation": {
                    "id": "olp-here"
                }
            },
            "schema": {
                "hrn": "hrn:here:schema:::com.here.traffic.realtime:traffic_v1:1.1.0"
            },
            "ttlHours": 1,
            "ttl": 3600000,
            "partitioningScheme": "heretile",
            "partitioning": {
                "tileLevels": [
                    12
                ],
                "scheme": "heretile"
            },
            "contentType": "application/x-protobuf",
            "volume": {
                "maxMemoryPolicy": "failOnWrite",
                "packageType": "large",
                "volumeType": "volatile"
            },
            "tags": [
                "TRAFFIC",
                "FLOW",
                "SPEED",
                "REAL-TIME",
                "CURRENT"
            ],
            "billingTags": [],
            "created": "2018-01-24T22:23:02.543Z",
            "layerType": "volatile"
        },
        {
            "id": "traffic-incident",
            "hrn": "hrn:here:data:::olp-traffic-1:traffic-incident",
            "name": "Traffic Incident",
            "summary": "Current traffic incidents",
            "description": "The traffic incident layer provides a set of incidents affecting traffic, associated with the road segments they affect. Powered by HERE Traffic, the layer is updated every minute with fresh information. Examples of traffic incidents include accidents, construction, and road closures.\n\nEach tile contains Protobuf data, which is a list of all the current traffic incident messages based on the Traffic schema. Any message which spans multiple tiles will be reported in all tiles where it exists, with the same ID.",
            "coverage": {
                "adminAreas": [
                    "BG",
                    "AT",
                    "TR",
                    "RU",
                    "PR",
                    "ES",
                    "NZ",
                    "US",
                    "SI",
                    "RO",
                    "IE",
                    "BE",
                    "AU",
                    "HU",
                    "FI",
                    "NO",
                    "PL",
                    "CH",
                    "SE",
                    "HR",
                    "GB",
                    "FR",
                    "BR",
                    "IT",
                    "CZ",
                    "GR",
                    "ZA",
                    "DK",
                    "NL",
                    "CA",
                    "DE"
                ]
            },
            "owner": {
                "creator": {
                    "id": "HERE-383016a9-fa93-44c0-8294-a156a9df650d"
                },
                "organisation": {
                    "id": "olp-here"
                }
            },
            "schema": {
                "hrn": "hrn:here:schema:::com.here.traffic.realtime:traffic_v1:1.1.0"
            },
            "ttlHours": 1,
            "ttl": 3600000,
            "partitioningScheme": "heretile",
            "partitioning": {
                "tileLevels": [
                    12
                ],
                "scheme": "heretile"
            },
            "contentType": "application/x-protobuf",
            "volume": {
                "maxMemoryPolicy": "failOnWrite",
                "packageType": "large",
                "volumeType": "volatile"
            },
            "tags": [
                "TRAFFIC",
                "INCIDENTS",
                "EVENTS",
                "CONGESTION",
                "REAL-TIME",
                "CURRENT"
            ],
            "billingTags": [],
            "created": "2018-01-24T22:40:44.168Z",
            "layerType": "volatile"
        }
    ],
    "version": 18
}

REST API の使用方法の詳細について は、『はじめに with the REST API 』を参照してください。

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