posit-dev / posit-dev/py-shiny
Feature request: set priority for events
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- Dominant language
- Python
- Stars
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- Avg merge
- 2d 18h
- Merged PRs (30d)
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Description
Hi!
I think it would be helpful if we could pass priority as a kwarg to the @reactive.event decorator, much like it is currently implemented for reactive.Effect. This way, a user would be able to define a chain of reactions in a specific order to trigger on a single event.
Let's say an action button is clicked, a loading spinner is rendered, then some data are preprocessed, then some analyses are done, then a visualization is created and rendered, etc.
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by comparing the reactive.event and reactive.Effect decorator entry points, focusing on how Effect currently accepts and applies priority. Trace the event-triggering flow and existing ordering behavior. Done means reactive.event accepts a priority kwarg and reactions triggered by one event run in the requested order, with coverage for the ordering behavior.
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Assessment
- Tech stack
- python
- Domain
- backend-api-design
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100