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This is the code for the [Cloudflare Worker](https://developers.cloudflare.com/workers/) that serves tile requests at tiles.openstreetmap.us. The tile data is uploaded as a PMTiles file to a [Cloudflare R2](https://developers.cloudflare.com/r2/) bucket. The worker's job is to handle HTTP requests for tiles by Z/X/Y ID, retrieve the data for that tile from the PMTiles archive, and return it to the client. It also serves TileJSON to describe each tileset, and enforces per-IP and per-Origin rate limits.
The worker code is adapted from [example code in from the PMTiles project](https://github.com/protomaps/PMTiles/tree/main/serverless/cloudflare). See the LICENSE file for details.
## Deploying
To deploy this code, run `npm run deploy`. This uses Cloudflare's "Wrangler" CLI tool to build and upload the code. You can also use the Wrangler CLI to test the worker locally.
