# PMTiles on Cloudflare Workers

Use [rclone](https://rclone.org/downloads/) to upload your PMTiles archives to an R2 bucket. The Web UI is limited to 300 MB.

# Getting started

* First run `npm install` in the root `PMTiles/js` directory, then `npm install` in `PMTiles/serverless/cloudflare`

* Edit `wrangler.toml` with a new name + your development and production R2 buckets.

* Test in development: `npm run start`

* Publish the worker: `npm run deploy`

# Settings

By default, your worker will serve tiles at path `NAME/0/0/0.EXT` using the archive at the root of your bucket `NAME.pmtiles`, where EXT is one of `mvt`, `png`, `jpg` or `webp` depending on the tileset.

This behavior can be customized with optional environment variables:

`PMTILES_PATH` - A string like `folder/{name}.pmtiles` specifying the path to archives in your bucket. Default `{name}.pmtiles`

`TILES_PATH` - a string like `prefix/{name}/{z}/{x}/{y}.{ext}` specifying the tile path exposed by the worker. Default `{name}/{z}/{x}/{y}.{ext}`

`ALLOWED_ORIGINS` - a comma-separated list of allowed CORS origions. Default none. Examples: `https://example.com,https://localhost:3000`, `*`


# Using the Workers web editor

Generate the Workers script using `npm run build` and copy `dist/index.js` to the editor.