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cloudflare worker supports PMTILES_PATH

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This commit is contained in:
Brandon Liu
2022-07-21 15:30:53 +08:00
parent d482611910
commit fc5e366bd2
2 changed files with 30 additions and 7 deletions
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21
serverless/cloudflare/worker.ts
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@@ -2,7 +2,7 @@ import { PMTiles, Source } from "../../js";
interface Env {
BUCKET: R2Bucket;
CACHE_TTL: string;
PMTILES_PATH: string | undefined;
}
interface CacheEntry {
@@ -60,6 +60,13 @@ export class LRUCache {
let worker_cache = new LRUCache();
export const pmtiles_path = (p: string | undefined, name: string): string => {
if (p) {
return p.replace("{name}", name);
}
return name + ".pmtiles";
};
const TILE = new RegExp(
/^\/([0-9a-zA-Z\/!\-_\.\*\'\(\)]+)\/(\d+)\/(\d+)\/(\d+).pbf$/
);
@@ -72,11 +79,15 @@ export default {
): Promise<Response> {
let url = new URL(request.url);
let match = url.pathname.match(TILE);
let match = url.pathname.match(TILE)!;
let subrequests = 1;
if (match) {
let name = match[1];
let z = +match[2];
let x = +match[3];
let y = +match[4];
class TempSource {
getKey() {
return "";
@@ -85,7 +96,7 @@ export default {
async getBytes(offset: number, length: number) {
let result = await worker_cache.get(
env.BUCKET,
match![1] + ".pmtiles",
pmtiles_path(env.PMTILES_PATH, name),
offset,
length
);
@@ -100,9 +111,9 @@ export default {
let p = new PMTiles(source);
let metadata = await p.metadata();
let entry = await p.getZxy(+match[2], +match[3], +match[4]);
let entry = await p.getZxy(z, x, y);
if (entry) {
let tile = await env.BUCKET.get(match![1] + ".pmtiles", {
let tile = await env.BUCKET.get(pmtiles_path(env.PMTILES_PATH, name), {
range: { offset: entry.offset, length: entry.length },
});