Compare candidate venue travel times in one batch
Bring a shortlist of places into a single comparison instead of checking each trip one at a time.
Trigger
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Action
Calculate Matrix
Tool to calculate distance, time, or weight matrices via POST. Use when you have multiple origins/destinations or a symmetric point set and need a single batch request.
Why this helps
Comparing several venues by hand consumes attention before the actual decision.
- Compare several origins and destinations in one calculation.
- Make venue tradeoffs visible in a run report.
- Avoid repeated one-by-one route lookups.
Setup
Build it in a few focused steps.
- 1Connect Slack and GraphHopper to Notis once in the portal.
- 2Create an automation in the portal or tell Notis conversationally what to do.
- 3Use one plain-language instruction to calculate a distance or time matrix when a channel message contains a venue shortlist and origin locations.
- 4Pick the Slack channel message trigger and choose where run reports should appear.
- 5Test with a real shortlist of at least two candidate venues.
Questions about this workflow
When is a matrix useful?
Use it when a message contains multiple origins, destinations, or a set of points that should be compared in one batch.
Can the result compare time as well as distance?
Yes. Ask Notis to calculate the metric that matches the decision, such as travel time or distance.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Slack to Graphhopper. A trigger fires from one place; an action lands in another.
Slack triggers
Graphhopper actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Capacity Clustering
Tool to solve capacity clustering problem. Use when assigning a set of customers to clusters to minimize total distance synchronously.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
GraphHopper Geocoding
Tool to perform forward or reverse geocoding. Use when converting between textual addresses and latitude/longitude coordinates.
New Channel Created Trigger
Triggered when a new channel is created in Slack.
Get Isochrone
Tool to compute isochrone polygons for a given point. Use when you need to determine areas reachable within time or distance constraints.
Channel Message Received
Triggered when a message is posted in a Slack channel (public, private, or multi-party IM). Does NOT match direct messages.
Calculate Matrix
Tool to calculate distance, time, or weight matrices via POST. Use when you have multiple origins/destinations or a symmetric point set and need a single batch request.
Direct Message Received
Triggered when a new direct message (DM) is sent to a user in Slack. Catches all DMs across all DM channels.
Get Custom Profiles
Tool to retrieve a list of all user-defined routing profiles. Use when you need to list custom profiles.
Message Reaction Added
Triggered when a reaction is added to a message in Slack. Supports optional filtering by channel and emoji name.
POST Route
Tool to calculate complex routes via POST /route. Use when you need advanced route planning with custom parameters.
Message Reaction Removed
Triggered when a reaction is removed from a message in Slack. Supports optional filtering by channel and emoji name.
Upload GPX File
Tool to upload a GPX file to a public file hosting endpoint. Returns a public URL which can be used where a 's3key' is required.
Reaction Added Trigger
DEPRECATED: use `SLACK_MESSAGE_REACTION_ADDED` instead. Triggered when a reaction is added to a message in Slack.
GraphHopper VRP POST
Tool to initiate VRP optimization. Use when you need to solve vehicle routing problems synchronously.
Connect any two apps with Notis in the middle.
Slack and Graphhopper, 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 Graphhopper.