> ## Documentation Index
> Fetch the complete documentation index at: https://ancplua.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Get apiv1sessionsstats

> Get session statistics



## OpenAPI

````yaml /api-reference/openapi.yaml get /api/v1/sessions/stats
openapi: 3.0.0
info:
  title: QYL Observability API
  version: '2026-01-26'
servers:
  - url: https://api.staging.qyl.dev
    description: QYL Staging API
    variables: {}
  - url: https://api.qyl.dev
    description: QYL Production API
    variables: {}
security: []
tags:
  - name: Streaming
  - name: Traces
  - name: Logs
  - name: Metrics
  - name: Sessions
  - name: Errors
  - name: Deployments
  - name: Services
  - name: Health
  - name: Workspaces
  - name: Onboarding
  - name: Configurator
  - name: Issues
  - name: Workflows
  - name: Search
  - name: Alerts
paths:
  /api/v1/sessions/stats:
    get:
      tags:
        - Sessions
      description: Get session statistics
      operationId: SessionsApi_getStats
      parameters:
        - name: startTime
          in: query
          required: false
          description: Start time
          schema:
            type: string
            format: date-time
          explode: false
        - name: endTime
          in: query
          required: false
          description: End time
          schema:
            type: string
            format: date-time
          explode: false
      responses:
        '200':
          description: The request has succeeded.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Qyl.Domains.Observe.Session.SessionStats'
        '500':
          description: Internal server error (500)
          headers:
            X-Trace-Id:
              required: false
              description: Trace ID for correlation
              schema:
                type: string
            X-Request-Id:
              required: false
              description: Request ID for support
              schema:
                type: string
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Qyl.Common.Errors.InternalServerError'
components:
  schemas:
    Qyl.Domains.Observe.Session.SessionStats:
      type: object
      required:
        - active_sessions
        - total_sessions
        - unique_users
        - avg_duration_ms
        - sessions_with_errors
        - sessions_with_genai
        - bounce_rate
      properties:
        active_sessions:
          allOf:
            - $ref: '#/components/schemas/Qyl.Common.Count'
          description: Active sessions count
        total_sessions:
          allOf:
            - $ref: '#/components/schemas/Qyl.Common.Count'
          description: Total sessions in time range
        unique_users:
          allOf:
            - $ref: '#/components/schemas/Qyl.Common.Count'
          description: Unique users in time range
        avg_duration_ms:
          type: number
          format: double
          description: Average session duration in milliseconds
        sessions_with_errors:
          allOf:
            - $ref: '#/components/schemas/Qyl.Common.Count'
          description: Sessions with errors
        sessions_with_genai:
          allOf:
            - $ref: '#/components/schemas/Qyl.Common.Count'
          description: Sessions with GenAI usage
        bounce_rate:
          allOf:
            - $ref: '#/components/schemas/Qyl.Common.Ratio'
          description: Bounce rate (single-page sessions)
        by_device_type:
          type: array
          items:
            $ref: >-
              #/components/schemas/Qyl.Domains.Observe.Session.SessionDeviceStats
          description: Sessions by device type
        by_country:
          type: array
          items:
            $ref: >-
              #/components/schemas/Qyl.Domains.Observe.Session.SessionCountryStats
          description: Sessions by country
      description: Aggregated session statistics
    Qyl.Common.Errors.InternalServerError:
      type: object
      required:
        - title
      properties:
        title:
          type: string
          enum:
            - Internal Server Error
        error_code:
          type: string
          description: Error code for support reference
      allOf:
        - $ref: '#/components/schemas/Qyl.Common.Errors.ProblemDetails'
      description: Internal server error (500)
    Qyl.Common.Count:
      type: integer
      format: int64
      minimum: 0
      description: Generic non-negative counter
      x-csharp-type: long
      x-duckdb-type: BIGINT
    Qyl.Common.Ratio:
      type: number
      format: double
      minimum: 0
      maximum: 1
      description: Ratio value (0.0 to 1.0)
      x-csharp-type: double
      x-duckdb-type: DOUBLE
    Qyl.Domains.Observe.Session.SessionDeviceStats:
      type: object
      required:
        - device_type
        - count
        - percentage
      properties:
        device_type:
          allOf:
            - $ref: '#/components/schemas/Qyl.Domains.Observe.Session.DeviceType'
          description: Device type
        count:
          allOf:
            - $ref: '#/components/schemas/Qyl.Common.Count'
          description: Session count
        percentage:
          allOf:
            - $ref: '#/components/schemas/Qyl.Common.Percentage'
          description: Percentage of total
      description: Session stats by device type
    Qyl.Domains.Observe.Session.SessionCountryStats:
      type: object
      required:
        - country_code
        - country_name
        - count
        - percentage
      properties:
        country_code:
          type: string
          description: Country code
        country_name:
          type: string
          description: Country name
        count:
          allOf:
            - $ref: '#/components/schemas/Qyl.Common.Count'
          description: Session count
        percentage:
          allOf:
            - $ref: '#/components/schemas/Qyl.Common.Percentage'
          description: Percentage of total
      description: Session stats by country
    Qyl.Common.Errors.ProblemDetails:
      type: object
      required:
        - type
        - title
        - status
      properties:
        type:
          type: string
          format: uri
          description: A URI reference identifying the problem type
          default: about:blank
        title:
          type: string
          description: A short, human-readable summary of the problem type
        status:
          type: integer
          format: int32
          description: >-
            The HTTP status code (informational only, actual code set by
            subtype)
        detail:
          type: string
          description: A human-readable explanation specific to this occurrence
        instance:
          type: string
          format: uri
          description: A URI reference identifying the specific occurrence
        timestamp:
          type: string
          format: date-time
          description: Timestamp of the error
      description: RFC 7807 Problem Details for HTTP APIs
    Qyl.Domains.Observe.Session.DeviceType:
      type: string
      enum:
        - desktop
        - mobile
        - tablet
        - tv
        - console
        - wearable
        - iot
        - bot
        - unknown
      description: Device types
    Qyl.Common.Percentage:
      type: number
      format: double
      minimum: 0
      maximum: 100
      description: Percentage value (0.0 to 100.0)
      x-csharp-type: double
      x-duckdb-type: DOUBLE

````