{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://api-evangelist.com/schemas/browserless/browserless-session-schema.json",
  "title": "Browserless Session",
  "description": "Schema for the Browserless Session object. Sessions are long-lived browser instances created via the /session REST endpoint that can be reused across BrowserQL queries and reconnected to via Puppeteer or Playwright using the returned browserWSEndpoint / reconnect URL.",
  "type": "object",
  "definitions": {
    "SessionCreate": {
      "type": "object",
      "description": "Request body / launch parameters for creating a Browserless session.",
      "properties": {
        "ttl": {
          "type": "integer",
          "description": "Session time-to-live in milliseconds before automatic teardown.",
          "minimum": 1000
        },
        "stealth": {
          "type": "boolean",
          "description": "When true, route the session through the stealth profile (hardened fingerprint, WebGL randomization, entropy injection)."
        },
        "blockAds": {
          "type": "boolean",
          "description": "When true, load uBlock-Lite to block ads and trackers."
        },
        "headless": {
          "type": "boolean",
          "description": "When false, run the browser with a visible window (only meaningful in self-hosted deployments)."
        },
        "humanlike": {
          "type": "boolean",
          "description": "When true, add human-like timing jitter to clicks, scrolls, and typing."
        },
        "record": {
          "type": "boolean",
          "description": "When true, capture a WebM screen recording of the session."
        },
        "trackingId": {
          "type": "string",
          "description": "Free-form identifier used to tag the session for billing / reporting allocation."
        },
        "proxy": {
          "type": "object",
          "description": "Residential proxy routing configuration.",
          "properties": {
            "type": {
              "type": "string",
              "enum": ["residential", "external"],
              "description": "Use a built-in residential proxy or a customer-supplied external proxy."
            },
            "country": {
              "type": "string",
              "description": "Two-letter ISO country code for proxy egress geography."
            },
            "city": {
              "type": "string",
              "description": "Optional city name for finer-grained proxy egress."
            },
            "sticky": {
              "type": "boolean",
              "description": "When true, keep the same residential IP for the duration of the session."
            }
          }
        },
        "viewport": {
          "type": "object",
          "description": "Initial browser viewport dimensions.",
          "properties": {
            "width": { "type": "integer", "minimum": 1 },
            "height": { "type": "integer", "minimum": 1 }
          }
        },
        "userAgent": {
          "type": "string",
          "description": "Override the browser User-Agent string."
        },
        "profile": {
          "type": "string",
          "description": "ID of a previously created profile to attach (cookies, localStorage, authenticated state)."
        }
      }
    },
    "Session": {
      "type": "object",
      "description": "A live Browserless session.",
      "required": ["id", "browserWSEndpoint"],
      "properties": {
        "id": {
          "type": "string",
          "description": "Unique identifier for the session."
        },
        "browserWSEndpoint": {
          "type": "string",
          "format": "uri",
          "description": "WebSocket endpoint used by Puppeteer (puppeteer.connect) or Playwright (chromium.connectOverCDP) to attach to the running browser."
        },
        "reconnectUrl": {
          "type": "string",
          "format": "uri",
          "description": "Short-lived reconnect URL returned from BQL `reconnect` mutations, of the form /reconnect/{trackingId}."
        },
        "liveURL": {
          "type": "string",
          "format": "uri",
          "description": "Optional live-URL for hybrid automation; participants can view or drive the browser through this URL."
        },
        "region": {
          "type": "string",
          "description": "Regional host running the session.",
          "enum": ["production-sfo", "production-lon", "production-ams"]
        },
        "browser": {
          "type": "string",
          "description": "Underlying browser engine.",
          "enum": ["chromium", "chrome", "edge", "firefox", "webkit", "stealth"]
        },
        "startedAt": {
          "type": "string",
          "format": "date-time",
          "description": "Timestamp the session began running."
        },
        "expiresAt": {
          "type": "string",
          "format": "date-time",
          "description": "Timestamp the session will be auto-released."
        },
        "trackingId": {
          "type": "string",
          "description": "Customer-supplied identifier used for billing / reporting allocation."
        },
        "stealth": {
          "type": "boolean",
          "description": "Whether the session was launched in the stealth profile."
        },
        "recordingUrl": {
          "type": "string",
          "format": "uri",
          "description": "When record=true was requested, the URL of the captured WebM (available after teardown)."
        }
      }
    }
  },
  "oneOf": [
    { "$ref": "#/definitions/SessionCreate" },
    { "$ref": "#/definitions/Session" }
  ]
}