https://sonarly.com/issue/34209?type=bug When viewing a workflow run record page, the side panel crashes with "Expected the flow to be defined" because `WorkflowRunVisualizerEffect` resets `flowComponentState` to `undefined` during data refetch while the side panel that depends on this state remains open. Fix: Replaced `useFlowOrThrow()` with `useAtomComponentStateValue(flowComponentState)` in `SidePanelWorkflowRunViewStepContent` and added `!isDefined(flow)` to the existing null-check guard that already handles `workflowRun` and `workflowSelectedNode` being undefined. **Why this fix:** The `flowComponentState` is set by `WorkflowRunVisualizerEffect` via a `useEffect` that depends on async GraphQL data. When the workflow run data is temporarily unavailable (network errors, refetch cycles), the effect resets `flowComponentState` to `undefined` without closing the side panel. The side panel component was using `useFlowOrThrow()` which throws when flow is undefined, causing a crash. The fix follows the exact same pattern already used on line 68 of the same file: ```typescript if (!isDefined(workflowRun) || !isDefined(workflowSelectedNode)) { return null; } ``` Now extended to also check for flow: ```typescript if (!isDefined(flow) || !isDefined(workflowRun) || !isDefined(workflowSelectedNode)) { return null; } ``` This renders nothing (graceful degradation) while the flow data is loading or temporarily unavailable, and re-renders automatically when the Jotai atom is populated — matching how the component already handles the other async dependencies.
The #1 Open-Source CRM
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Why Twenty
Twenty gives technical teams the building blocks for a custom CRM that meets complex business needs and quickly adapts as the business evolves. Twenty is the CRM you build, ship, and version like the rest of your stack.
Learn more about why we built Twenty
Installation
Cloud
The fastest way to get started. Sign up at twenty.com and spin up a workspace in under a minute, with no infrastructure to manage and always up to date.
Build an app
Scaffold a new app with the Twenty CLI:
npx create-twenty-app my-app
Define objects, fields, and views as code:
import { defineObject, FieldType } from 'twenty-sdk/define';
export default defineObject({
nameSingular: 'deal',
namePlural: 'deals',
labelSingular: 'Deal',
labelPlural: 'Deals',
fields: [
{ name: 'name', label: 'Name', type: FieldType.TEXT },
{ name: 'amount', label: 'Amount', type: FieldType.CURRENCY },
{ name: 'closeDate', label: 'Close Date', type: FieldType.DATE_TIME },
],
});
Then ship it to your workspace:
npx twenty deploy
See the app development guide for objects, views, agents, and logic functions.
Self-hosting
Run Twenty on your own infrastructure with Docker Compose, or contribute locally via the local setup guide.
Everything you need
Twenty gives you the building blocks of a modern CRM (objects, views, workflows, and agents) and lets you extend them as code. Here's a tour of what's in the box.
Want to go deeper? Read the User Guide for product walkthroughs, or the
Documentation for developer reference.
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Stack
TypeScript
Nx
NestJS, with BullMQ,
PostgreSQL,
Redis
React, with Jotai, Linaria and Lingui
Thanks
Thanks to these amazing services that we use and recommend for UI testing (Chromatic), code review (Greptile), catching bugs (Sentry) and translating (Crowdin).
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