Surface a signal on the Slack message it affects
When a webhook starts a signal check, add a reaction to the Slack message you identify if the result meets your condition.
Trigger
Webhook received
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Action
Add reaction to message
Adds a specified emoji reaction to an existing message in a slack channel, identified by its timestamp; does not remove or retrieve reactions.
Why this helps
A useful data signal can be easy to miss when it is disconnected from the Slack discussion it affects.
- Connect a defined signal to an existing Slack message.
- Use a visible reaction to mark a message for attention.
- Avoid manually checking a data source before each relevant discussion.
Setup
Build it in a few focused steps.
- 1Connect API Ninjas and Slack once in the Notis portal.
- 2Create an automation in Automations, New Automation, and give it a name.
- 3In one instruction, describe the API Ninjas signal to check, the matching condition, the Slack message, and the reaction to add.
- 4Pick a webhook trigger and choose where run reports should go.
- 5Test with one real example and confirm the message and reaction are correct.
Questions about this workflow
Can it find the relevant Slack message automatically?
The available reaction action needs an existing message identified by its Slack channel and timestamp. Supply those details or a reliable way for Notis to obtain them.
What if the signal does not match?
State that no reaction should be added when the condition is not met. The automation should use only the condition and data you provide.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Api ninjas to Slack. A trigger fires from one place; an action lands in another.
Api ninjas triggers
Slack actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Set snooze duration
Deprecated: turns on do not disturb mode for the current user, or changes its duration. use `set dnd duration` instead.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Add a custom emoji to a Slack team
Deprecated: adds a custom emoji to a slack workspace given a unique name and an image url. use `add emoji` instead.
Add an emoji alias
Adds an alias for an existing custom emoji in a slack enterprise grid organization.
Add a remote file
Adds a reference to an external file (e.g., google drive, dropbox) to slack for discovery and sharing, requiring a unique `external id` and an `external url` accessible by slack.
Add a star to an item
Stars a channel, file, file comment, or a specific message in slack.
Add call participants
Registers new participants added to a slack call.
Add emoji
Adds a custom emoji to a slack workspace given a unique name and an image url; subject to workspace emoji limits.
Add reaction to message
Adds a specified emoji reaction to an existing message in a slack channel, identified by its timestamp; does not remove or retrieve reactions.
Connect any two apps with Notis in the middle.
Api ninjas and Slack, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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