{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://api.spotify.com/schemas/track",
  "title": "Spotify Track",
  "description": "Schema for a Spotify track object, including metadata, audio features, and linked resources.",
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "description": "The Spotify ID for the track",
      "pattern": "^[a-zA-Z0-9]{22}$",
      "examples": ["4iV5W9uYEdYUVa79Axb7Rh"]
    },
    "uri": {
      "type": "string",
      "description": "The Spotify URI for the track",
      "pattern": "^spotify:track:[a-zA-Z0-9]{22}$",
      "examples": ["spotify:track:4iV5W9uYEdYUVa79Axb7Rh"]
    },
    "href": {
      "type": "string",
      "format": "uri",
      "description": "A link to the Web API endpoint providing full details of the track"
    },
    "name": {
      "type": "string",
      "description": "The name of the track",
      "examples": ["Blinding Lights"]
    },
    "type": {
      "type": "string",
      "enum": ["track"],
      "description": "The object type: track"
    },
    "duration_ms": {
      "type": "integer",
      "minimum": 0,
      "description": "The track length in milliseconds",
      "examples": [200040]
    },
    "explicit": {
      "type": "boolean",
      "description": "Whether or not the track has explicit lyrics"
    },
    "is_playable": {
      "type": "boolean",
      "description": "Whether the track is playable in the given market"
    },
    "is_local": {
      "type": "boolean",
      "description": "Whether the track is a local file"
    },
    "popularity": {
      "type": "integer",
      "minimum": 0,
      "maximum": 100,
      "description": "The popularity of the track (0-100, 100 being most popular)"
    },
    "preview_url": {
      "type": ["string", "null"],
      "format": "uri",
      "description": "A URL to a 30-second preview MP3 of the track"
    },
    "track_number": {
      "type": "integer",
      "description": "The number of the track on its album"
    },
    "disc_number": {
      "type": "integer",
      "description": "The disc number (usually 1 unless the album consists of more than one disc)"
    },
    "external_ids": {
      "type": "object",
      "description": "Known external IDs for the track",
      "properties": {
        "isrc": {"type": "string", "description": "International Standard Recording Code"},
        "ean": {"type": "string", "description": "International Article Number"},
        "upc": {"type": "string", "description": "Universal Product Code"}
      }
    },
    "external_urls": {
      "type": "object",
      "description": "Known external URLs for the track",
      "properties": {
        "spotify": {
          "type": "string",
          "format": "uri",
          "description": "The Spotify URL for the track"
        }
      }
    },
    "artists": {
      "type": "array",
      "description": "The artists who performed the track",
      "items": {
        "$ref": "#/$defs/SimplifiedArtist"
      }
    },
    "album": {
      "$ref": "#/$defs/SimplifiedAlbum"
    },
    "available_markets": {
      "type": "array",
      "description": "Markets where the track is available (ISO 3166-1 alpha-2 codes)",
      "items": {
        "type": "string",
        "pattern": "^[A-Z]{2}$"
      }
    }
  },
  "required": ["id", "uri", "name", "type", "duration_ms", "artists"],
  "$defs": {
    "SimplifiedArtist": {
      "type": "object",
      "properties": {
        "id": {"type": "string"},
        "uri": {"type": "string"},
        "href": {"type": "string", "format": "uri"},
        "name": {"type": "string"},
        "type": {"type": "string", "enum": ["artist"]},
        "external_urls": {
          "type": "object",
          "properties": {
            "spotify": {"type": "string", "format": "uri"}
          }
        }
      },
      "required": ["id", "name"]
    },
    "SimplifiedAlbum": {
      "type": "object",
      "properties": {
        "id": {"type": "string"},
        "uri": {"type": "string"},
        "href": {"type": "string", "format": "uri"},
        "name": {"type": "string"},
        "type": {"type": "string", "enum": ["album"]},
        "album_type": {
          "type": "string",
          "enum": ["album", "single", "compilation"]
        },
        "release_date": {"type": "string"},
        "release_date_precision": {
          "type": "string",
          "enum": ["year", "month", "day"]
        },
        "total_tracks": {"type": "integer"},
        "images": {
          "type": "array",
          "items": {"$ref": "#/$defs/Image"}
        },
        "artists": {
          "type": "array",
          "items": {"$ref": "#/$defs/SimplifiedArtist"}
        }
      },
      "required": ["id", "name", "album_type"]
    },
    "Image": {
      "type": "object",
      "properties": {
        "url": {"type": "string", "format": "uri"},
        "height": {"type": ["integer", "null"]},
        "width": {"type": ["integer", "null"]}
      },
      "required": ["url"]
    }
  }
}