feat: deploy mail frontend with alchemy #1168
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WalkthroughA new deployment script for an Alchemy app was added, configuring deployment stages and environment variables. The Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant AlchemyScript
participant ReactRouter
participant Bun
participant Console
User->>AlchemyScript: Run deployment script (with optional --destroy)
AlchemyScript->>AlchemyScript: Determine stage (USER env or "dev")
AlchemyScript->>AlchemyScript: Set phase (deploy/destroy)
AlchemyScript->>ReactRouter: Configure website resource (worker, env, compatibility)
ReactRouter->>Bun: Execute build command
AlchemyScript->>Console: Log website URL
AlchemyScript->>AlchemyScript: Finalize deployment
Poem
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Actionable comments posted: 3
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro
⛔ Files ignored due to path filters (1)
pnpm-lock.yamlis excluded by!**/pnpm-lock.yaml
📒 Files selected for processing (4)
.gitignore(1 hunks)apps/mail/alchemy.run.ts(1 hunks)apps/mail/package.json(1 hunks)pnpm-workspace.yaml(1 hunks)
🔇 Additional comments (4)
pnpm-workspace.yaml (1)
8-8: Verify the stability of the PR build for production use.Using a PR build URL (
https://pkg.pr.new/sam-goodwin/alchemy@238) is acceptable for development and testing, but consider the following for production deployment:
- PR builds may become unavailable or unstable
- Ensure this specific PR build is thoroughly tested
- Plan to migrate to a stable release version when available
.gitignore (1)
60-62: LGTM!Properly ignoring the
.alchemy/directory is appropriate for build artifacts and local configuration files generated by the Alchemy tool.apps/mail/package.json (1)
50-50: LGTM!Correctly using the catalog protocol to reference the alchemy package from the workspace configuration.
apps/mail/alchemy.run.ts (1)
1-27: LGTM! Well-structured deployment script.The overall structure of the deployment script is well-organized with proper imports, configuration, and cleanup. The use of top-level await is appropriate for a deployment script.
| const app = await alchemy("my-react-router-app", { | ||
| stage: process.env.USER ?? "dev", | ||
| phase: process.argv.includes("--destroy") ? "destroy" : "up", | ||
| }); |
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🛠️ Refactor suggestion
Consider using a more appropriate environment variable for stage determination.
Using process.env.USER for stage determination may not be ideal since USER typically contains the username rather than a deployment stage. Consider using a dedicated environment variable like STAGE, NODE_ENV, or DEPLOY_STAGE.
- stage: process.env.USER ?? "dev",
+ stage: process.env.STAGE ?? "dev",🤖 Prompt for AI Agents
In apps/mail/alchemy.run.ts around lines 6 to 9, the code uses process.env.USER
to determine the deployment stage, which is inappropriate as USER usually holds
the username. Replace process.env.USER with a more suitable environment variable
such as process.env.STAGE, process.env.NODE_ENV, or process.env.DEPLOY_STAGE to
correctly reflect the deployment stage. Update the fallback default value
accordingly if needed.
| env: { | ||
| "VITE_PUBLIC_BACKEND_URL": "http://localhost:8787", | ||
| "VITE_PUBLIC_APP_URL": "http://localhost:3000", | ||
| } |
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🛠️ Refactor suggestion
Review hardcoded localhost URLs for deployment suitability.
The environment variables are set to localhost URLs, which may not be appropriate for actual deployment to staging or production environments. Consider making these configurable based on the deployment stage.
env: {
- "VITE_PUBLIC_BACKEND_URL": "http://localhost:8787",
- "VITE_PUBLIC_APP_URL": "http://localhost:3000",
+ "VITE_PUBLIC_BACKEND_URL": process.env.BACKEND_URL ?? "http://localhost:8787",
+ "VITE_PUBLIC_APP_URL": process.env.APP_URL ?? "http://localhost:3000",
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| env: { | |
| "VITE_PUBLIC_BACKEND_URL": "http://localhost:8787", | |
| "VITE_PUBLIC_APP_URL": "http://localhost:3000", | |
| } | |
| env: { | |
| "VITE_PUBLIC_BACKEND_URL": process.env.BACKEND_URL ?? "http://localhost:8787", | |
| "VITE_PUBLIC_APP_URL": process.env.APP_URL ?? "http://localhost:3000", | |
| } |
🤖 Prompt for AI Agents
In apps/mail/alchemy.run.ts around lines 17 to 20, the environment variables use
hardcoded localhost URLs which are not suitable for staging or production
deployments. Modify the code to set these URLs dynamically based on the
deployment environment, such as using environment variables or configuration
files that differ between development, staging, and production. This ensures the
URLs are appropriate for each deployment stage without manual code changes.
| noBundle: true, | ||
| main: "./worker.ts", | ||
| command: "bun run build", | ||
| compatibilityDate: "2025-05-01", |
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💡 Verification agent
🧩 Analysis chain
Verify the compatibility date setting.
The compatibility date is set to "2025-05-01". Ensure this date aligns with your deployment requirements and Cloudflare Workers compatibility timeline.
🌐 Web query:
What is the current recommended compatibility date for Cloudflare Workers in 2025?
💡 Result:
Current Recommended Compatibility Date for Cloudflare Workers (2025)
Cloudflare Workers uses a compatibility date system to manage backwards-incompatible runtime changes and enable access to new features. When you set up or update a Worker, you specify a compatibility_date in your configuration, which determines which features and behaviors your Worker will use[1].
The recommended practice is:
- Always set the compatibility date to the current date when you start or update your project. This ensures your Worker gets the latest features and improvements, unless you have a reason to deliberately use an older date for stability or compatibility reasons[1].
For 2025, the current recommended compatibility date is today’s date:
- 2025-05-31 (or whatever is the current date when you deploy or update your project)[1].
If you create a Worker through the Cloudflare Dashboard, the compatibility date is automatically set to the current date[1]. When updating, it is a good practice to check the compatibility flags page to review any significant changes since your last update and test your Worker for any potential impacts[1][2].
"When you start your project, you should always set
compatibility_dateto the current date. You should occasionally update thecompatibility_datefield. When updating, you should refer to the compatibility flags page to find out what has changed, and you should be careful to test your Worker to see if the changes affect you, updating your code as necessary." [1]
Summary Table
| Best Practice in 2025 | Value/Approach |
|---|---|
| Compatibility date to use | The current date (e.g., 2025-05-31) |
| Set automatically via Dashboard | Yes |
| Update recommended? | Yes, to get new features and fixes |
| Where to configure | Wrangler config, Dashboard, or API |
There is no strict requirement to update your compatibility date unless you want access to new features or API changes[1]. However, Cloudflare strongly recommends keeping it up to date for the best support and feature set[1].
Citations:
- 1: https://developers.cloudflare.com/workers/configuration/compatibility-dates/
- 2: https://developers.cloudflare.com/workers/configuration/compatibility-flags/
- 3: https://developers.cloudflare.com/workers/testing/miniflare/core/compatibility/
- 4: https://community.cloudflare.com/t/10021-cant-set-compatibility-date-in-the-future-2024-02-03/610174
- 5: Compatibility date warnings cloudflare/miniflare#666
- 6: https://developers.cloudflare.com/changelog/2025-04-07-br-free-ga-playwright/
- 7: https://blog.arpitdalal.dev/my-cloudflare-workers-migration-the-good-the-bad-and-the-confusing
- 8: https://developers.cloudflare.com/workers/frameworks/framework-guides/nextjs/
- 9: https://developers.cloudflare.com/changelog/2025-01-30-browser-rendering-more-instances/
- 10: https://blog.cloudflare.com/full-stack-development-on-cloudflare-workers/
Update Cloudflare Workers compatibility date
To ensure your Worker benefits from the latest runtime features and flags, update the compatibilityDate to the current date of your deployment.
• File: apps/mail/alchemy.run.ts
• Line: 15
Suggested diff:
- compatibilityDate: "2025-05-01",
+ compatibilityDate: "2025-05-31", // use today’s date to opt into the latest Cloudflare Workers featuresIf you deliberately need to pin to an older date for stability, please add a comment explaining that decision.
🤖 Prompt for AI Agents
In apps/mail/alchemy.run.ts at line 15, the compatibilityDate is set to
"2025-05-01", which is outdated. Update this value to the current date of your
deployment (e.g., "2025-05-31") to ensure your Cloudflare Worker uses the latest
runtime features and improvements. If you intentionally want to keep an older
date for stability, add a comment explaining that choice.
Summary by CodeRabbit
New Features
Chores