HarperDB Svelte SSR Example

This repo is an example of how to implement Svelte SSR using HarperDB Resources to efficiently generate a Blog from a database of Posts.

It includes complete client side hydration as well, resulting in a fully interactive web application experience.

[!TIP] Watch a walkthrough of this example here: Server-side Rendering (SSR) with Multi-Tier Cache Demo

Get Started

1. npm i
2. npm build
3. harperdb run .
4. Navigate to /UncachedBlog/0 or /CachedBlog/0
5. Add or remove comments!

The application is fully interactive and leverages a WebHook on the Post to keep the page synced with the database record.

Regardless of caching, the pages are server side rendered. In the caching example, it will only rerender when the Post has been updated.

Otherwise, clients should always receive a 304 status code!

Help

• The resources.js file will generate a Post record automatically on startup, but won't overwrite an existing one.

• If you want to clear the Post record, use the command: curl -X DELETE http://localhost:9926/Post/0

• If you want to clear the comments on the Post, use the command:

curl -X PATCH http://localhost:9926/Post/0 \
-H "Content-Type: application/json" \
-d '{ "comments": [] }'

• This repo includes a caching-test.js script for quickly demonstrating and validating the caching behavior. Give it a try with node caching-test.js (component must be running with HarperDB).