Eric Allam
57254b57fb
## Summary The webapp's server bundle imports `prop-types` directly, but the package was declared only as a `devDependency`. A production install therefore leaves it out and the built server fails to boot: ``` Failed to start server: Error [ERR_MODULE_NOT_FOUND]: Cannot find package 'prop-types' imported from /triggerdotdev/apps/webapp/build/server/assets/server-build-*.js ``` Moving it to `dependencies` is the whole change. ## Why the bundle imports it Nothing in the webapp's own code uses `prop-types` — there is no reference to it, or to `PropTypes`, anywhere under `apps/webapp/app`. It arrives through `recharts`, whose `react-smooth` dependency still declares `propTypes` on its components. That was invisible until recently. While `recharts` was resolved at runtime, its `prop-types` import was satisfied inside `recharts`' own dependency tree, which is production all the way down. #4486 added `recharts` and `victory-vendor` to `ssr.noExternal` to fix a hydration mismatch on every server-rendered chart; that inlines `react-smooth` into the server bundle, which moves its `prop-types` import into the webapp's own resolution scope — where the package was not available in production. So the bundling change was correct about *which* d3-shape build both sides resolve, and wrong about what the production runtime would be able to find. ## Verification `docker/Dockerfile` builds the runtime dependencies with `pnpm install --prod` against a `turbo prune --scope=webapp --docker` output, so I reproduced exactly that: pruned the workspace, installed with `--prod`, and imported `prop-types` from `apps/webapp`. | | result | | -- | -- | | `main` as it stands (devDependency only) | `FAILS: ERR_MODULE_NOT_FOUND` | | with this change | `prop-types resolves OK` | It resolves both as a CommonJS `require` and as an ESM `import`, which is the form the bundle uses. I also checked this is not one symptom of a wider problem: of the 169 bare specifier roots the server bundle imports, `prop-types` is the **only** one that is a devDependency and not a production dependency. The rest are node builtins or production dependencies. The hydration fix from #4486 is unaffected — the rebuilt bundle still carries the rounding d3-path build. ## Notes `prop-types` is inert in production (its entry point swaps in `factoryWithThrowingShims`), so this adds a 124 KB package that does no work at runtime. It has to be resolvable regardless, because the import is real. An alternative would be adding `prop-types` to `ssr.noExternal` so it is inlined and needs no runtime resolution. That keeps the dependency list honest about the fact that the webapp itself does not use it, at the cost of bundling a CommonJS package into the ESM server output. This route is the smaller, better-understood change. Worth following up separately: a check that every bare import in the server bundle resolves from a production install would have caught this before it landed. Local development installs every devDependency, so the gap is invisible when the built server is run from a working tree.
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About Trigger.dev
Trigger.dev is the open-source platform for building AI workflows in TypeScript. Long-running tasks with retries, queues, observability, and elastic scaling.
The platform designed for building AI agents
Build AI agents using all the frameworks, services and LLMs you're used to, deploy them to Trigger.dev and get durable, long-running tasks with retries, queues, observability, and elastic scaling out of the box.
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Long-running without timeouts: Execute your tasks with absolutely no timeouts, unlike AWS Lambda, Vercel, and other serverless platforms.
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Durability, retries & queues: Build rock solid agents and AI applications using our durable tasks, retries, queues and idempotency.
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True runtime freedom: Customize your deployed tasks with system packages – run browsers, Python scripts, FFmpeg and more.
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Human-in-the-loop: Programmatically pause your tasks until a human can approve, reject or give feedback.
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Realtime apps & streaming: Move your background jobs to the foreground by subscribing to runs or streaming AI responses to your app.
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Observability & monitoring: Each run has full tracing and logs. Configure error alerts to catch bugs fast.
Key features:
- JavaScript and TypeScript SDK - Build background tasks using familiar programming models
- Long-running tasks - Handle resource-heavy tasks without timeouts
- Durable cron schedules - Create and attach recurring schedules of up to a year
- Trigger.dev Realtime - Trigger, subscribe to, and get real-time updates for runs, with LLM streaming support
- Build extensions - Hook directly into the build system and customize the build process. Run Python scripts, FFmpeg, browsers, and more.
- React hooks - Interact with the Trigger.dev API on your frontend using our React hooks package
- Batch triggering - Use batchTrigger() to initiate multiple runs of a task with custom payloads and options
- Structured inputs / outputs - Define precise data schemas for your tasks with runtime payload validation
- Waits - Add waits to your tasks to pause execution for a specified duration
- Preview branches - Create isolated environments for testing and development. Integrates with Vercel and git workflows
- Waitpoints - Add human-in-the-loop judgment at critical decision points without disrupting workflow
- Concurrency & queues - Set concurrency rules to manage how multiple tasks execute
- Multiple environments - Support for DEV, PREVIEW, STAGING, and PROD environments
- No infrastructure to manage - Auto-scaling infrastructure that eliminates timeouts and server management
- Automatic retries - If your task encounters an uncaught error, we automatically attempt to run it again
- Checkpointing - Tasks are inherently durable, thanks to our checkpointing feature
- Versioning - Atomic versioning allows you to deploy new versions without affecting running tasks
- Machines - Configure the number of vCPUs and GBs of RAM you want the task to use
- Observability & monitoring - Monitor every aspect of your tasks' performance with comprehensive logging and visualization tools
- Logging & tracing - Comprehensive logging and tracing for all your tasks
- Tags - Attach up to ten tags to each run, allowing you to filter via the dashboard, realtime, and the SDK
- Run metadata - Attach metadata to runs which updates as the run progresses and is available to use in your frontend for live updates
- Bulk actions - Perform actions on multiple runs simultaneously, including replaying and cancelling
- Real-time alerts - Choose your preferred notification method for run failures and deployments
Write tasks in your codebase
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import { task } from "@trigger.dev/sdk";
//1. You need to export each task
export const helloWorld = task({
//2. Use a unique id for each task
id: "hello-world",
//3. The run function is the main function of the task
run: async (payload: { message: string }) => {
//4. You can write code that runs for a long time here, there are no timeouts
console.log(payload.message);
},
});
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We support Development, Staging, Preview, and Production environments, allowing you to test your tasks before deploying them to production.
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View every task in every run so you can tell exactly what happened. We provide a full trace view of every task run so you can see what happened at every step.
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Useful links:
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