Mark API approval decisions in Slack
Make a decision visible at a glance by reacting to the Slack message tied to an API approval result.
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
Approval decisions can be hard to spot when the team has to compare separate API output and Slack discussion.
- Make approval status easier to scan in a conversation.
- Reduce manual status marking after a decision.
- Keep the reaction attached to the relevant Slack message.
Setup
Build it in a few focused steps.
- 1Connect Api labz and Slack once in the Notis portal.
- 2Create an automation and describe how to match an approval decision to its Slack message and choose a reaction.
- 3Choose a Notis webhook trigger and have the approval process send the decision and message reference.
- 4Choose where Notis run reports should go.
- 5Test with one real approval and confirm the reaction is added to the intended message.
Questions about this workflow
What information is needed to react to a message?
The workflow needs the Slack channel and message timestamp for the intended message, plus the approval result available through Api labz or the webhook request.
Does the action remove an existing reaction?
No. This Slack action adds a reaction to a message.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Api labz to Slack. A trigger fires from one place; an action lands in another.
Api labz 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 labz and Slack, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
Save your first hour today.
7-day trial of any paid plan, with 20$ of usage included.
No card. Works with personal or business Slack.