Check course data when a new file arrives
Use a file upload as a cue to check whether related records are present and consistent in ClickHouse.
Trigger
New Canvas File Upload
Polls a Canvas course for new file uploads.
Action
Execute ClickHouse Query
Execute a sql query in clickhouse and return the results. this is the primary action for querying data from clickhouse databases.
Why this helps
A file can be added without anyone checking whether corresponding analytics data is complete or consistent.
- Check for records associated with a newly uploaded file.
- Surface possible duplicate or missing rows when queryable identifiers exist.
- Get a concise report to guide manual follow-up.
Setup
Build it in a few focused steps.
- 1Connect Canvas and ClickHouse once in the Notis portal.
- 2Create an automation and describe the data quality question in one instruction.
- 3Ask Notis to query relevant ClickHouse records for missing, duplicate, or inconsistent data tied to the upload.
- 4Pick New Canvas File Upload as the trigger and choose where run reports go.
- 5Test with one real course file upload.
Questions about this workflow
Can it verify the file contents against ClickHouse?
Only if the relevant file identifiers or expected values are available to the query. Specify the data source and validation rule in your instruction.
Does it repair inconsistent data?
No. The configured query action returns results; use the report to decide what follow-up is needed.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Canvas to ClickHouse. A trigger fires from one place; an action lands in another.
Canvas triggers
ClickHouse actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Execute ClickHouse Query
Execute a sql query in clickhouse and return the results. this is the primary action for querying data from clickhouse databases.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Get Database Schema
Get comprehensive schema overview of an entire database including all tables and optionally their column definitions. essential for ai agents to understand the complete database structure in a single call.
Canvas Assignment Graded
Polls Canvas for newly graded submissions for a specific assignment.
Get Table Schema
Get detailed schema information for a specific table including column definitions, types, keys, and optionally sample data. this is essential for ai agents to understand table structure before constructing queries.
New Canvas Assignment Submission
Polls Canvas for new submissions to a specific assignment.
List ClickHouse Databases
List all databases in the clickhouse instance. useful for discovering available databases before querying tables.
New Canvas Discussion Message
Polls Canvas discussion topics for new messages.
List ClickHouse Tables
List tables in clickhouse databases. returns information about tables including their engine, size, and row count.
New Canvas Discussion Topic
Polls a Canvas course for new discussion topics.
New Course Created for User
Polls Canvas for newly created courses for a specific user.
New Canvas File Upload
Polls a Canvas course for new file uploads.
Connect any two apps with Notis in the middle.
Canvas and ClickHouse, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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