# Get the session data

Retrieves the complete conversation history and metadata for a specific session.
    
    The session data includes:
    - All messages exchanged between user and AI
    - Timestamps for each message
    - Additional context like reasoning steps for AI responses
    - Session metadata
    
    Each message contains:
    - role: Either 'human' or 'ai'
    - content: The actual message text
    - timestamp: When the message was sent
    - additional_context: Extra information like reasoning steps (for AI messages)

Endpoint: GET /core/v1/sessions/{session_id}
Version: v1
Security: APIKeyHeader

## Path parameters:

  - `session_id` (string, required)

## Response 200 fields (application/json):

  - `session_id` (string, required)
    The ID of the session.

  - `messages` (array, required)
    The messages exchanged during the session.

  - `messages.role` (string, required)
    The role of the message sender. Can be either 'user' or 'assistant'.
    Enum: "human", "ai"

  - `messages.content` (any, required)
    The content of the message.

  - `messages.timestamp` (number, required)
    The timestamp of the message in seconds since the Unix epoch.

  - `messages.additional_context` (any)
    Additional context for the message.

## Response 401 fields (application/json):

  - `body` (string, required)
    Error message or description

  - `status_code` (integer, required)
    HTTP status code
    Example: 400

  - `details` (any)
    Additional error details if available

## Response 403 fields (application/json):

  - `body` (string, required)
    Error message or description

  - `status_code` (integer, required)
    HTTP status code
    Example: 400

  - `details` (any)
    Additional error details if available

## Response 422 fields (application/json):

  - `body` (string, required)
    Error message or description

  - `status_code` (integer, required)
    HTTP status code
    Example: 400

  - `details` (any)
    Additional error details if available

## Response 500 fields (application/json):

  - `body` (string, required)
    Error message or description

  - `status_code` (integer, required)
    HTTP status code
    Example: 400

  - `details` (any)
    Additional error details if available