Example file with serialized map - mapoffacts.com

save_load.json

{
  "_version": 1,
  "_timestamp": "2015-11-11T07:54:43.441Z",
  "props": {
    "layers": [
      {
        "name": "Layer (0)",
        "id": 0,
        "data": null,
        "dirty": false,
        "sourceId": 0,
        "visualizationId": 0,
        "visualizationParams": {
          "longitudeId": "_source.center_point.0",
          "latitudeId": "_source.center_point.1",
          "blending": 2,
          "color": "#3e537a",
          "opacity": 0.8,
          "radius": 64
        }
      }
    ],
    "sources": [
      {
        "id": 0,
        "sourceId": 2,
        "params": {
          "availableSets": [
            {
              "id": "tags.amenity",
              "name": "Amenity"
            },
            {
              "id": "tags.atm",
              "name": "ATM"
            },
            {
              "id": "tags.beer_brand",
              "name": "Beer Brand"
            },
            {
              "id": "tags.brewery",
              "name": "Brewery"
            },
            {
              "id": "tags.bridge_ref",
              "name": "Bridge"
            },
            {
              "id": "tags.causeway",
              "name": "Causeway"
            },
            {
              "id": "tags.cusine",
              "name": "Cusine"
            },
            {
              "id": "tags.cycleway",
              "name": "Cycleway"
            },
            {
              "id": "tags.emergency",
              "name": "Emergency"
            },
            {
              "id": "tags.gauge",
              "name": "Gauge"
            },
            {
              "id": "tags.junction",
              "name": "Junction"
            },
            {
              "id": "tags.location",
              "name": "Location"
            },
            {
              "id": "tags.lottery",
              "name": "Lottery"
            },
            {
              "id": "tags.massif",
              "name": "Massif"
            },
            {
              "id": "tags.microbrewery",
              "name": "Microbrewery"
            },
            {
              "id": "tags.park_ride",
              "name": "Park Ride"
            },
            {
              "id": "tags.parking",
              "name": "Parking"
            },
            {
              "id": "tags.ramp",
              "name": "Ramp"
            },
            {
              "id": "tags.religion",
              "name": "Religion"
            },
            {
              "id": "tags.repair",
              "name": "Repair"
            },
            {
              "id": "tags.shelter",
              "name": "Shelter"
            },
            {
              "id": "tags.snowmobile",
              "name": "Snowmobile"
            },
            {
              "id": "tags.smoking",
              "name": "Smoking"
            },
            {
              "id": "tags.tourism",
              "name": "Tourism"
            },
            {
              "id": "tags.trade",
              "name": "Trade"
            },
            {
              "id": "tags.train",
              "name": "Train"
            },
            {
              "id": "tags.wifi",
              "name": "Wi-Fi"
            }
          ],
          "setId": "tags.wifi"
        },
        "data": null
      }
    ]
  },
  "state": {
    "layerCounter": 1,
    "sourceCounter": 1
  }
}