Modals are focused surfaces that allow you to collect user data and display dynamic information. You can open a modal by passing a valid `trigger_id` and a
view payload to the built-in client's
`views.open` method.
Your app receives `trigger_id`s in payloads sent to your Request URL that are triggered by user invocations, like a shortcut, button press, or interaction with a select menu.
Read more about modal composition in the
API documentation.
```python
# Listen for a shortcut invocation
@app.shortcut("open_modal")
def open_modal(ack, body, client):
# Acknowledge the command request
ack();
# Call views_open with the built-in client
client.views_open(
# Pass a valid trigger_id within 3 seconds of receiving it
trigger_id=body["trigger_id"],
# View payload
view={
"type": "modal",
# View identifier
"callback_id": "view_1",
"title": {"type": "plain_text", "text": "My App"},
"submit": {"type": "plain_text", "text": "Submit"},
"blocks": [
{
"type": "section",
"text": {"type": "mrkdwn", "text": "Welcome to a modal with _blocks_"},
"accessory": {
"type": "button",
"text": {"type": "plain_text", "text": "Click me!"},
"action_id": "button_abc"
}
},
{
"type": "input",
"block_id": "input_c",
"label": {"type": "plain_text", "text": "What are your hopes and dreams?"},
"element": {
"type": "plain_text_input",
"action_id": "dreamy_input",
"multiline": True
}
}
]
}
)
```