firestore-structure.js

{
  "teams": { // Collection
    "teamId1": { // Document
      "name": "SERT",
      "number": 2521,
      "owners": { // Object within document
        "uid1": 2521, // We sort our teams in ascending order by team number
        "uid2": { ... },
        "uid3": { ... }
      },
      "scouts": { // Subcollection
        "scoutId1": { // Document
          "name": "Scout 1",
          "timestamp": 1489877223288, // We sort our scouts in descending order by creation date
          "metrics": { // Subcollection
            // List of metrics
          }
        },
        "scoutId2": { ... },
        "scoutId3": { ... }
      }
      // Other fields
    },
    "teamId2": { ... },
    "teamId3": { ... }
  },
  "templates": { // Collection
    "templateId1": { // Document
      "name": "My custom template",
      "timestamp": 1489877223288,
      "owners": { // Object within document
        "uid1": 1489877223288, // We also sort our templates in descending order by creation date
        "uid2": { ... },
        "uid3": { ... }
      },
      "metrics": { // Subcollection
        // List of metrics to be used for a scout
      }
    },
    "templateId2": { ... },
    "templateId3": { ... }
  },
  "users": { // Collection
    "uid1": { // Document
      "name": "Alex Saveau",
      "email": "saveau.alexandre@gmail.com",
      // Other fields
    },
    "uid2": { ... },
    "uid3": { ... }
  }
}