[Database] Using Hub Database With Nuxt 3 Layers Issues

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Introduction

As a developer, you're likely familiar with the challenges of working with databases, especially when it comes to integrating them with your application's architecture. In this article, we'll delve into the issues encountered when using Hub Database with Nuxt 3 Layers, a popular framework for building server-side rendered (SSR) applications.

Prehistory

Before we dive into the issues, let's set the stage. Our demo application uses Hub/Cloudflare KV storage to display a list of up to 5 items. The app architecture is similar to a real-world application we're developing. We've decided to move forward with a real database, but we're facing some challenges with the current implementation.

Progress

We've followed the documentation and prepared changes for migration, but unfortunately, nothing seems to be working. We've created a pull request with the changes, but we're still experiencing issues.

Issues

[Solved] D1_ERROR

The first issue we encountered was similar to the one reported in issue #486. The problem was caused by the remote: true option, but we didn't have any DBs in Cloudflare. To resolve this issue, we ran the following command:

npx nuxthub deploy --preview src/apps/app

This created the _hub_migration DB remotely, and the issue was resolved.

Items are not loaded without any errors

When we run our app using npm run dev:app, we don't see any errors in the terminal or console, but we're greeted with a message saying "Something went wrong..." We've attached screenshots of the issue.

Seed task

We've read in the documentation that the seed task is optional, but we suspected that the items DB wasn't created yet, so we created a task file to seed it. However, when we run the task, we get an internal server error.

Steps to reproduce

To help you understand the issues we're facing, we've provided a step-by-step guide to reproduce the problem:

  1. Clone the repo with the branch feature/drizzle:
git clone git@github.com:serhii-chernenko/nuxthub-issue.git
cd $_
git checkout feature/drizzle
  1. Install NPM packages:
npm run install
  1. Go to NuxtHub Dashboard and create a new empty project: https://admin.hub.nuxt.com/username/new/project
  2. Link the created project:
npx nuxthub link
  1. Move the created .env file manually:
mv .env src/apps/app/
  1. Make sure that D1 is enabled in your Cloudflare account: https://dash.cloudflare.com/account-id/workers/d1
  2. Deploy the app:
npx nuxthub deploy src/apps/app
  1. Wait a few minutes for Cloudflare and NuxtHub to set up all DNS records and services.
  2. Run the app:
npm run dev:app
  1. Open http://localhost:3000/
  2. Check that the app doesn't have any errors but items are not fetched
  3. Run the seed task in the Nuxt DevTools
  4. Stop the app, run npm run db:generate, and run the app again
  5. Open the file src/layers/core/data/nuxt.config.ts and comment the line remote: true
  6. Re-run the app using npm run dev:app
  7. Run the seed task again, and you should get an error:
D1_ERROR: no such table: items: SQLITE_ERROR

Expected behavior

We're fine with waiting for the supporting of multiple DBs, but this integration is blocking our work, and we can't move forward with our project. We don't want to change our solution and ecosystem, but we need detailed instructions on how to solve these issues to proceed.

Conclusion

Introduction

In our previous article, we explored the issues encountered when using Hub Database with Nuxt 3 Layers. We provided a step-by-step guide to reproduce the problem and highlighted the expected behavior. In this article, we'll answer some frequently asked questions (FAQs) related to the issues we encountered.

Q: What is the root cause of the D1_ERROR issue?

A: The root cause of the D1_ERROR issue is the remote: true option, which is enabled by default in Nuxt 3 Layers. This option allows the app to connect to the Hub Database remotely, but it requires a valid DB to be created in Cloudflare.

Q: How do I resolve the D1_ERROR issue?

A: To resolve the D1_ERROR issue, you need to create a valid DB in Cloudflare. You can do this by running the following command:

npx nuxthub deploy --preview src/apps/app

This will create the _hub_migration DB remotely, and the issue should be resolved.

Q: Why are items not loaded without any errors?

A: Items are not loaded without any errors because the items DB is not created yet. You need to run the seed task to create the DB and populate it with data.

Q: How do I run the seed task?

A: To run the seed task, you need to create a task file and add the necessary code to create the items DB and populate it with data. You can then run the task using the Nuxt DevTools.

Q: What is the expected behavior when running the seed task?

A: When running the seed task, you should see the items DB created and populated with data. If you encounter an internal server error, it means that the task failed to create the DB or populate it with data.

Q: How do I troubleshoot the seed task?

A: To troubleshoot the seed task, you can check the Nuxt DevTools for any errors or warnings. You can also check the Cloudflare dashboard to see if the DB is created and populated with data.

Q: Can I use a different database instead of Hub Database?

A: Yes, you can use a different database instead of Hub Database. However, you need to make sure that the database is compatible with Nuxt 3 Layers and that you have the necessary configuration and setup to use it.

Q: How do I configure Nuxt 3 Layers to use a different database?

A: To configure Nuxt 3 Layers to use a different database, you need to update the nuxt.config.ts file to point to the new database. You also need to update the seed task to create the new database and populate it with data.

Conclusion

In this article, we've answered some frequently asked questions related to the issues encountered when using Hub Database with Nuxt 3 Layers. We hope that this Q&A guide will help you troubleshoot and resolve any issues you may encounter when using Nuxt 3 Layers with Hub Database.