# Events

Conversations in Rasa are represented as a sequence of events. This page lists the event types defined in Rasa Core.

Note

If you are using the Rasa SDK to write custom actions in python, you need to import the events from `rasa_sdk.events`, not from `rasa.core.events`. If you are writing actions in another language, your events should be formatted like the JSON objects on this page.

## General Purpose Events

### Set a Slot

Short

Event to set a slot on a tracker

JSON

```
evt = {"event": "slot", "name": "departure_airport", "value": "BER"}
```

Class `rasa.core.events.SlotSet` (_key_, _value=None_, _timestamp=None_, _metadata=None_)

The user has specified their preference for the value of a `slot`.

Every slot has a name and a value. This event can be used to set a value for a slot on a conversation.

As a side effect the `Tracker`’s slots will be updated so that `tracker.slots[key]=value`.

### Restart a conversation

Short

Resets anything logged on the tracker.

JSON

```
evt = {"event": "restart"}
```

Class `rasa.core.events.Restarted` (_timestamp=None_, _metadata=None_)

Conversation should start over & history wiped.

Instead of deleting all events, this event can be used to reset the trackers state (e.g. ignoring any past user messages & resetting all the slots).

### Reset all Slots

Short

Resets all the slots of a conversation.

JSON

```
evt = {"event": "reset_slots"}
```

Class `rasa.core.events.AllSlotsReset` (_timestamp=None_, _metadata=None_)

### Schedule a reminder

Short

Schedule an intent to be triggered in the future.

JSON

```
evt = {
  "event": "reminder",
  "intent": "my_intent",
  "entities": {"entity1": "value1", "entity2": "value2"},
  "date_time": "2018-09-03T11:41:10.128172",
  "name": "my_reminder",
  "kill_on_user_msg": True,
}
```

### Cancel a reminder

Short

Cancel one or more reminders.

JSON

```
evt = {
  "event": "cancel_reminder",
  "name": "my_reminder",
  "intent": "my_intent",
  "entities": [
        {"entity": "entity1", "value": "value1"},
        {"entity": "entity2", "value": "value2"},
    ],
  "date_time": "2018-09-03T11:41:10.128172",
}
```

### Pause a conversation

Short

Stops the bot from responding to messages. Action prediction will be halted until resumed.

JSON

```
evt = {"event": "pause"}
```

### Resume a conversation

Short

Resumes a previously paused conversation. The bot will start predicting actions again.

JSON

```
evt = {"event": "resume"}
```

### Force a followup action

Short

Instead of predicting the next action, force the next action to be a fixed one.

JSON

```
evt = {"event": "followup", "name": "my_action"}
```

### Automatically tracked events

### User sent message

Short

Message a user sent to the bot.

JSON

```
evt = {
    "event": "user",
    "text": "Hey",
    "parse_data": {
        "intent": {
            "name": "greet",
            "confidence": 0.9
        },
        "entities": []
    },
    "metadata": {},
}
```

### Bot responded message

Short

Message a bot sent to the user.

JSON

```
evt = {"event": "bot", "text": "Hey there!", "data": {}}
```

### Undo a user message

Short

Undoes all side effects that happened after the last user message (including the `user` event of the message).

JSON

```
evt = {"event": "rewind"}
```

### Undo an action

Short

Undoes all side effects that happened after the last action (including the `action` event of the action).

JSON

```
evt = {"event": "undo"}
```

### Log an executed action

Short

Logs an action the bot executed to the conversation. Events that action created are logged separately.

JSON

```
evt = {"event": "action", "name": "my_action"}
```

### Start a new conversation session

Short

Marks the beginning of a new conversation session. Resets the tracker and triggers an `ActionSessionStart` which by default applies the existing `SlotSet` events to the new session.

JSON

```
evt = {"event": "session_started"}
```