Slack

Slack webhooks for Flyte: the Events API, interactivity, and slash commands.

Hand a SlackProvider() to a WebhookAppEnvironment and register handlers with the typed constants in events. All three of Slack’s delivery shapes arrive on the same /webhook/slack route. Calling the Slack API is not this plugin’s job — use slack_sdk from your tasks. See examples/external_saas_integrations.

Directory

Classes

Class	Description
`SlackProvider`	Slack’s webhook provider, with its defaults pre-wired.

Methods

Method	Description
`handshake()`	Answer Slack’s reachability probes, sent before events flow.
`parse()`	Normalize any Slack delivery — event callback, interaction, or slash command.
`verify()`	Verify the `X-Slack-Signature` v0 HMAC, within the replay window.

Variables

Property	Type	Description
`MAX_REQUEST_AGE_SECONDS`	`int`
`SAMPLE_DELIVERY`	`tuple`

Methods

handshake()

        
    
def handshake(
    headers: Mapping[str, str],
    body: bytes,
) -> dict[str, Any] | None

Answer Slack’s reachability probes, sent before events flow.

Two exist: the url_verification challenge on the Events API URL, and the form-encoded ssl_check probe on interactivity and slash-command URLs. Ordinary deliveries return None and proceed to verification.

Parameter	Type	Description
`headers`	`Mapping[str, str]`
`body`	`bytes`

parse()

        
    
def parse(
    headers: Mapping[str, str],
    body: bytes,
) -> WebhookEvent

Normalize any Slack delivery — event callback, interaction, or slash command.

Parameter	Type	Description
`headers`	`Mapping[str, str]`
`body`	`bytes`

verify()

        
    
def verify(
    body: bytes,
    headers: Mapping[str, str],
    secret: str,
) -> bool

Verify the X-Slack-Signature v0 HMAC, within the replay window.

Parameter	Type	Description
`body`	`bytes`
`headers`	`Mapping[str, str]`
`secret`	`str`