📡 System Events Guide

Complete description of all fields available in events after parsing through EventParser.

Event Types

System supports following event types:

Event Type	Description	When Occurs
message	Regular message from user	User sends text message or media
callback	Inline button click	User clicks button in message
member_joined	Member joined group	User joins group or supergroup
member_left	Member left group	User leaves group or supergroup
pre_checkout_query	Payment confirmation request	User clicks "Pay" in invoice, but before payment processing
payment_successful	Successful payment	Payment via invoice successfully processed

Common Fields

These fields available in all event types. All these fields come initially when receiving event and contain original data that formed the event.

ℹ️ Important: These attributes — original event information passed from source (e.g., Telegram). They used by system as default values for actions (e.g., chat_id and message_id taken from event if not specified explicitly in action parameters).

⚠️ Limitation for scheduled scenarios: In scenarios launched on schedule (with schedule field), most common fields unavailable, as event not associated with user or chat. Only system fields available (bot_id, tenant_id) and special scheduled scenario fields (see Scheduled Scenario Fields section).

Field	Type	Description	Example
event_source	string	Event source	"telegram"
event_type	string	Event type	"message", "callback", "member_joined", "member_left", "pre_checkout_query", "payment_successful"
user_id	integer	User ID who initiated event	123456789
chat_id	integer	Chat ID from which event came	-1001234567890
chat_type	string	Chat type	"private", "group", "supergroup", "channel"
is_group	boolean	Whether chat is group or supergroup	true for group and supergroup, false for private and channel
message_id	integer	ID of original message that led to event. For message type events — text message ID, for callback — message ID with button that triggered callback	1234
event_date	string	Event date (ISO)	"2024-01-15T10:30:45+03:00"
username	string	User username	"john_doe" (can be null)
first_name	string	User first name	"John"
last_name	string	User last name	"Doe" (can be null)
language_code	string	User language code	"ru", "en" (can be null)
is_bot	boolean	Whether user is bot	false
is_premium	boolean	Premium user	true
chat_title	string	Chat title	"My Group" (can be null)
chat_username	string	Chat username	"my_group" (can be null)
user_state	string	User state	"feedback", "onboarding" (can be null)
user_state_expired_at	string	State expiration time (ISO)	"3000-01-01T00:00:00+00:00" (can be null)

🔧 Service Fields

System automatically adds following service fields for correct action operation:

Field	Type	Description	Purpose
bot_id	integer	Bot ID	Required for sending messages and executing actions
tenant_id	integer	Tenant ID	Required for loading scenarios and determining context
polling_start_time	string	Bot polling start time (ISO)	Service for filtering events by time
last_error	string	Last action error text	Service for passing errors between scenario steps
last_result	string	Last executed action result	Service for debugging and result checking between scenario steps
scenario_chain	array	Scenario chain in execution order	Service for debugging and logging, contains array of scenario names in execution order

⚠️ Important: Following fields added automatically:

• Required fields (bot_id, tenant_id) — required for executing actions (sending messages, working with DB, managing states)
  • ℹ️ In scheduled scenarios: Fields bot_id and tenant_id available automatically and don't require explicit specification in action parameters. They automatically substituted from synthetic event context
• Service fields (polling_start_time, last_error, last_result, scenario_chain) — used by system for internal logic:
  • polling_start_time — filtering events by time
  • last_error — saving action error text for subsequent scenario steps
  • last_result — saving action execution result (e.g., success, error, timeout, not_found) for debugging and checking in subsequent scenario steps
  • scenario_chain — array of scenario names in call order, automatically updated when launching each scenario and on transitions (jump_to_scenario, execute_scenario). Current scenario available as scenario_chain[-1], previous — as scenario_chain[-2] (if exists). Used for debugging and logging execution flow
• State fields (user_state, user_state_expired_at) — can be null if state not set or expired

Scheduled Scenario Fields

Additional fields for scenarios launched on schedule:

Field	Type	Description	Example
scheduled_at	string	Scheduled scenario launch time (ISO)	"2024-01-15T10:30:00+03:00"
scheduled_scenario_id	integer	Scheduled scenario ID in database	123
scheduled_scenario_name	string	Scheduled scenario name	"daily_report"

ℹ️ Important: These fields available only in scheduled scenarios (with schedule field in configuration). In regular event-triggered scenarios, these fields absent.

⚠️ Limitation: In scheduled scenarios most common fields (e.g., user_id, chat_id, event_text, message_id, etc.) unavailable, as event not associated with user or chat. For sending messages use target_chat_id parameter in actions.

Message Fields

Additional fields for message type events:

Field	Type	Description	Example
event_text	string	Message text	"Hello! How are you?"
media_group_id	string	Media group ID	"1234567890123456789" (can be null)
event_attachment	array	Attachments	[{"type": "photo", "file_id": "AgACAgIAAxkBAAIB..."}]
inline_keyboard	array	Message inline keyboard	[[{"Button 1": "action_1"}]] (can be null)
is_reply	boolean	Reply to message	true
is_forward	boolean	Forwarded message	false

Reply Message Fields

Field	Type	Description	Example
reply_message_id	integer	Reply message ID	1233
reply_message_text	string	Reply message text	"How are you?"
reply_user_id	integer	Reply message author ID	123456789
reply_username	string	Reply message author username	"jane_doe"
reply_first_name	string	Reply message author first name	"Jane"
reply_last_name	string	Reply message author last name	"Smith"
reply_date	string	Reply message date (ISO)	"2024-01-15T10:25:30+03:00"
reply_attachment	array	Reply message attachments	[{"type": "document", "file_id": "BQACAgIAAxkBAAIB..."}]

Forwarded Message Fields

Field	Type	Description	Example
forward_message_id	integer	Forwarded message ID	5678
forward_from_user_id	integer	Forwarded message author ID	987654321
forward_from_user_username	string	Forwarded message author username	"original_author"
forward_from_user_first_name	string	Forwarded message author first name	"Original"
forward_from_user_last_name	string	Forwarded message author last name	"Author"
forward_from_chat_id	integer	Forwarded message chat ID	-1009876543210
forward_from_chat_title	string	Forwarded message chat title	"Original Group"
forward_from_chat_type	string	Forwarded message chat type	"supergroup"
forward_date	string	Forwarded message date (ISO)	"2024-01-15T09:15:20+03:00"

Callback Fields

Additional fields for callback type events:

Field	Type	Description	Example
callback_id	string	Callback ID	"1234567890123456789"
callback_data	string	Callback data	"menu_main"
callback_message_text	string	Original message text callback attached to (text or caption)	"Choose action:" (can be null)
inline_keyboard	array	Inline keyboard of message callback attached to	[[{"Button 1": "action_1"}]] (can be null)

Payment Events

Events related to payment via Telegram invoices.

pre_checkout_query Fields

Event pre_checkout_query occurs when user clicks "Pay" button in invoice, but before payment processing. This is payment confirmation request from Telegram to bot.

ℹ️ Important: Must respond to this event via answer_pre_checkout_query action to confirm or reject payment. If don't respond within 10 seconds, payment will be automatically rejected.

Field	Type	Description	Example
pre_checkout_query_id	string	Payment confirmation request ID	"1234567890123456789"
invoice_payload	string	Invoice ID (payload passed during creation)	"123"
currency	string	Payment currency	"XTR" (Telegram Stars)
total_amount	integer	Total payment amount in minimal currency units	100 (100 stars)

Additionally: Event contains common fields (see Common Fields section).

payment_successful Fields

Event payment_successful occurs after successful payment processing via invoice.

Field	Type	Description	Example
invoice_payload	string	Invoice ID (payload passed during creation)	"123"
currency	string	Payment currency	"XTR" (Telegram Stars)
total_amount	integer	Total payment amount in minimal currency units	100 (100 stars)
telegram_payment_charge_id	string	Payment ID in Telegram	"1234567890"

Additionally: Event contains common fields (see Common Fields section).

Member Events

Events of type member_joined and member_left use standard common fields (see Common Fields section).

ℹ️ Important:

• Event member_joined occurs when user joins group (transition from status left, kicked or first join)
• Event member_left occurs when user leaves group (transition to status left or kicked)
• These events available only for groups and supergroups

Attachment Fields

Structure of objects in event_attachment and reply_attachment arrays:

Attachment Types

Type	Description	Note
photo	Photo	Largest available resolution
document	Document	Any file (PDF, DOC, ZIP, etc.)
video	Video	Video file
audio	Audio	Audio file
voice	Voice message	Voice message
sticker	Sticker	Telegram sticker
animation	Animation	GIF animation
video_note	Video note	Round video message

Attachment Object Structure

Field	Type	Description	Example
type	string	Attachment type	"photo"
file_id	string	File ID	"AgACAgIAAxkBAAIB..."

Attachment Structure Example

{
  "type": "photo",
  "file_id": "AgACAgIAAxkBAAIB..."
}

Usage Examples

How to use event fields in scenarios:

Simple Conditions

# Check event type
trigger:
  - event_type: "message"

# Check message text
trigger:
  - event_type: "message"
    event_text: "/start"

# Check callback data
trigger:
  - event_type: "callback"
    callback_data: "menu_main"

# Check user state
trigger:
  - event_type: "message"
    user_state: "feedback"

Complex Conditions

# Check user and chat
trigger:
  - event_type: "message"
    condition: |
      $user_id == 123456789 and
      $chat_type == "private" and
      $event_text ~ "hello"

# Check attachments
trigger:
  - event_type: "message"
    condition: |
      $event_attachment[0].type == "photo"

# Check reply message
trigger:
  - event_type: "message"
    condition: |
      $is_reply == true and
      $reply_user_id == 987654321

Usage in Action Parameters

# Send message to same chat
- action: "send_message"
  params:
    bot_id: "{bot_id}"
    chat_id: "{chat_id}"
    text: "Hello, {first_name}!"

# Reply to message
- action: "send_message"
  params:
    bot_id: "{bot_id}"
    chat_id: "{chat_id}"
    text: "Received your message!"
    message_reply: "{message_id}"

# Manage user state
- action: "set_user_state"
  params:
    state: "feedback"
    expires_in_seconds: 3600