如何从Swift中的json api中获取特定数据集？

我目前正在使用Tracker Networks Apex Legends API版本2。 我试图获取每个图例的图例数据，然后能够显示每个特定图例的数据。 然而，我想不出一个简单的方法来做到这一点。 有没有关于我如何能得到像

探路者 死亡人数-100 损失-3000 等等

对每个传奇都这样做

JSON响应：

      {
        "type": "legend",
        "attributes": {
          "id": "legend_8"
        },
        "metadata": {
          "name": "Pathfinder",
          "imageUrl": "https://trackercdn.com/cdn/apex.tracker.gg/legends/pathfinder-tile.png",
          "tallImageUrl": "https://trackercdn.com/cdn/apex.tracker.gg/legends/pathfinder-tall.png",
          "bgImageUrl": "https://trackercdn.com/cdn/apex.tracker.gg/legends/pathfinder-concept-bg-small.jpg",
          "isActive": true
        },
        "expiryDate": "2019-10-04T21:59:04.1270197Z",
        "stats": {
          "kills": {
            "rank": 208,
            "percentile": 99.9,
            "displayName": "Kills",
            "displayCategory": "Combat",
            "category": null,
            "metadata": {},
            "value": 12728,
            "displayValue": "12,728",
            "displayType": "Unspecified"
          },
          "killsAsKillLeader": {
            "rank": 22,
            "percentile": 99.9,
            "displayName": "Kills As Kill Leader",
            "displayCategory": "Combat",
            "category": null,
            "metadata": {},
            "value": 5764,
            "displayValue": "5,764",
            "displayType": "Unspecified"
          },
          "sniperKills": {
            "rank": 990,
            "percentile": 99.7,
            "displayName": "Sniper Kills",
            "displayCategory": "Weapons",
            "category": null,
            "metadata": {},
            "value": 104,
            "displayValue": "104",
            "displayType": "Unspecified"
          },
          "seasonWins": {
            "rank": 31158,
            "percentile": 92,
            "displayName": "Season 1 Wins",
            "displayCategory": "Game",
            "category": null,
            "metadata": {},
            "value": 24,
            "displayValue": "24",
            "displayType": "Unspecified"
          },
          "seasonDamage": {
            "rank": 5310,
            "percentile": 98.8,
            "displayName": "Season 1 Damage",
            "displayCategory": "Game",
            "category": null,
            "metadata": {},
            "value": 403954,
            "displayValue": "403,954",
            "displayType": "Unspecified"
          }
        }
      },

“到期日”：“2019-10-04T21:59:04.1270197Z” }

您可以看到，我希望获得每个图例的统计信息，然后在集合视图或表视图中显示它们的名称以及它们上的任何可用数据。可能是集合视图

使用的结构（使用QuickType完成）：

用于api调用和显示数据的代码：

    let PlayerStatURL = URL(string: "https://public-api.tracker.gg/v2/apex/standard/profile/origin/itsspress")

        if let unwrappedURL = PlayerStatURL {
            var request = URLRequest(url: unwrappedURL)
            request.addValue("db833c37-1f45-4be4-a670-38272dba7504", forHTTPHeaderField: "TRN-Api-Key")
            let dataTask = URLSession.shared.dataTask(with: request) { (data, response, error) in
                // you should put in error handling code, too
                if let data = data {
                    do {


                        let store = try JSONDecoder().decode(Store.self, from: data) as Store

                        print(store.data.platformInfo.avatarUrl)
                        print(store.data.platformInfo.platformUserHandle)
                        print("Level: \(store.data.segments[0].stats.level!.displayValue)")

                        print("lifetime Kills: \(store.data.segments.map{$0.stats.kills.displayValue}[0])")

                        print(store.data.segments.map{$0.metadata.name})
                        print(store.data.segments.map{$0.stats.carePackageKills?.displayName}[2])


                    } catch {
                        print(error.localizedDescription)
                        print(error)

                        }
                    }
                }
            dataTask.resume()

        }  

我不确定如何从上面的JSON获取这些数据。结构似乎只允许我从所有then传奇中提取，比如说杀死统计，而不允许我从pathfinder中提取

---

我怎样才能在pathfinder上获取统计信息呢？

您可以通过以下方式实现这一点：

do {
    let store = try JSONDecoder().decode(Store.self, from: data) as Store
    store.data.segments.map{$0.metadata.name}.forEach { legendName in
        if let stats = store.data.segments.first(where: { $0.metadata.name == legendName })?.stats {        
            let killString = stats.kills.displayName + " - " + stats.kills.displayValue
            var damageString: String = ""
            if let damage = stats.damage {
                damageString = damage.displayName + " - " + damage.displayValue
            }
            print(legendName + " " + killString + " " + damageString )
        }
    }
} catch {
    print(error.localizedDescription)
    print(error)

}

输出：

Lifetime Kills - 408 Damage - 74,053
Pathfinder Kills - 230 Damage - 59,694
Gibraltar Kills - 1 
Bangalore Kills - 116 
Octane Kills - 0 
Bloodhound Kills - 6 
Wraith Kills - 18 Damage - 6,357
Mirage Kills - 14 Damage - 5,307
Caustic Kills - 7 Damage - 2,695
Lifeline Kills - 16 

Lifetime Kills - 408 Damage - 74,053
Pathfinder Kills - 230 Damage - 59,694
Gibraltar Kills - 1 
Bangalore Kills - 116 
Octane Kills - 0 
Bloodhound Kills - 6 
Wraith Kills - 18 Damage - 6,357
Mirage Kills - 14 Damage - 5,307
Caustic Kills - 7 Damage - 2,695
Lifeline Kills - 16