collection.json

{
  "stac_version": "1.0.0",
  "stac_extensions": [
    "https://stac-extensions.github.io/item-assets/v1.0.0/schema.json",
    "https://stac-extensions.github.io/template/v1.0.0/schema.json"
  ],
  "type": "Collection",
  "id": "collection",
  "title": "A title",
  "description": "A description",
  "license": "Apache-2.0",
  "extent": {
    "spatial": {
      "bbox": [
        [
          172.9,
          1.3,
          173,
          1.4
        ]
      ]
    },
    "temporal": {
      "interval": [
        [
          "2015-06-23T00:00:00Z",
          null
        ]
      ]
    }
  },
  "template:new_field": "test",
  "template:xyz": {
    "x": 1,
    "y": 2,
    "z": 3
  },
  "template:another_one": [
    1,
    2,
    3
  ],
  "assets": {
    "example": {
      "href": "https://example.com/examples/file.xyz",
      "template:new_field": "test"
    }
  },
  "item_assets": {
    "data": {
      "roles": [
        "data"
      ],
      "template:new_field": "test"
    }
  },
  "summaries": {
    "datetime": {
      "minimum": "2015-06-23T00:00:00Z",
      "maximum": "2019-07-10T13:44:56Z"
    }
  },
  "links": [
    {
      "href": "https://example.com/examples/collection.json",
      "rel": "self"
    },
    {
      "href": "https://example.com/examples/item.json",
      "rel": "item"
    }
  ]
}