Check image hosting setup after approval changes
When an approval changes, verify ImgBB access so the next image upload does not stall on setup.
Trigger
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Action
Upload Image to ImgBB
Tool to upload an image to ImgBB. Use when you need to host an image and get back its URLs immediately.
Why this helps
A reversed approval can restart the asset handoff, and missing API setup may only surface during the next upload.
- Validate ImgBB configuration after an approval reversal.
- Surface setup readiness before the next upload is needed.
- Keep the follow-up tied to the Slack approval event.
Setup
Build it in a few focused steps.
- 1Connect Slack and ImgBB to Notis once in the portal.
- 2Create an automation or ask Notis to validate the ImgBB API key when an approval reaction is removed from an image message.
- 3Select Message Reaction Removed and specify the relevant reaction in the instruction.
- 4Choose a channel for run reports and test by removing the reaction from a sample image message.
Questions about this workflow
Does this upload the image?
No. This workflow validates the ImgBB API key; upload requires the separate Upload Image to ImgBB action.
When is this useful?
Use it when approval changes should prompt a quick check that ImgBB is ready for a later upload.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Imgbb. A trigger fires from one place; an action lands in another.
Slack triggers
Imgbb actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Get ImgBB API Key
Tool to retrieve and validate the ImgBB API key. Use before making ImgBB API calls to ensure authentication is configured.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Upload Image to ImgBB
Tool to upload an image to ImgBB. Use when you need to host an image and get back its URLs immediately.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
Connect any two apps with Notis in the middle.
Slack and Imgbb, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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