mirror of
https://github.com/protomaps/PMTiles.git
synced 2026-02-04 10:51:07 +00:00
add initial implementation of cloudflare worker
This commit is contained in:
Brandon Liu
1
serverless/cloudflare/.gitignore
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1
serverless/cloudflare/.gitignore
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@@ -0,0 +1 @@
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dist
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557
serverless/cloudflare/package-lock.json
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557
serverless/cloudflare/package-lock.json
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@@ -0,0 +1,557 @@
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{
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"name": "cloudflare",
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],
|
||||||
|
"engines": {
|
||||||
|
"node": ">=12"
|
||||||
|
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|
||||||
|
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|
||||||
|
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|
||||||
|
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|
||||||
|
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|
||||||
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|
||||||
|
"cpu": [
|
||||||
|
"x64"
|
||||||
|
],
|
||||||
|
"dev": true,
|
||||||
|
"optional": true,
|
||||||
|
"os": [
|
||||||
|
"win32"
|
||||||
|
],
|
||||||
|
"engines": {
|
||||||
|
"node": ">=12"
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"node_modules/esbuild-windows-arm64": {
|
||||||
|
"version": "0.14.42",
|
||||||
|
"resolved": "https://registry.npmjs.org/esbuild-windows-arm64/-/esbuild-windows-arm64-0.14.42.tgz",
|
||||||
|
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|
||||||
|
"cpu": [
|
||||||
|
"arm64"
|
||||||
|
],
|
||||||
|
"dev": true,
|
||||||
|
"optional": true,
|
||||||
|
"os": [
|
||||||
|
"win32"
|
||||||
|
],
|
||||||
|
"engines": {
|
||||||
|
"node": ">=12"
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"node_modules/typescript": {
|
||||||
|
"version": "4.7.2",
|
||||||
|
"resolved": "https://registry.npmjs.org/typescript/-/typescript-4.7.2.tgz",
|
||||||
|
"integrity": "sha512-Mamb1iX2FDUpcTRzltPxgWMKy3fhg0TN378ylbktPGPK/99KbDtMQ4W1hwgsbPAsG3a0xKa1vmw4VKZQbkvz5A==",
|
||||||
|
"dev": true,
|
||||||
|
"bin": {
|
||||||
|
"tsc": "bin/tsc",
|
||||||
|
"tsserver": "bin/tsserver"
|
||||||
|
},
|
||||||
|
"engines": {
|
||||||
|
"node": ">=4.2.0"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"dependencies": {
|
||||||
|
"esbuild": {
|
||||||
|
"version": "0.14.42",
|
||||||
|
"resolved": "https://registry.npmjs.org/esbuild/-/esbuild-0.14.42.tgz",
|
||||||
|
"integrity": "sha512-V0uPZotCEHokJdNqyozH6qsaQXqmZEOiZWrXnds/zaH/0SyrIayRXWRB98CENO73MIZ9T3HBIOsmds5twWtmgw==",
|
||||||
|
"dev": true,
|
||||||
|
"requires": {
|
||||||
|
"esbuild-android-64": "0.14.42",
|
||||||
|
"esbuild-android-arm64": "0.14.42",
|
||||||
|
"esbuild-darwin-64": "0.14.42",
|
||||||
|
"esbuild-darwin-arm64": "0.14.42",
|
||||||
|
"esbuild-freebsd-64": "0.14.42",
|
||||||
|
"esbuild-freebsd-arm64": "0.14.42",
|
||||||
|
"esbuild-linux-32": "0.14.42",
|
||||||
|
"esbuild-linux-64": "0.14.42",
|
||||||
|
"esbuild-linux-arm": "0.14.42",
|
||||||
|
"esbuild-linux-arm64": "0.14.42",
|
||||||
|
"esbuild-linux-mips64le": "0.14.42",
|
||||||
|
"esbuild-linux-ppc64le": "0.14.42",
|
||||||
|
"esbuild-linux-riscv64": "0.14.42",
|
||||||
|
"esbuild-linux-s390x": "0.14.42",
|
||||||
|
"esbuild-netbsd-64": "0.14.42",
|
||||||
|
"esbuild-openbsd-64": "0.14.42",
|
||||||
|
"esbuild-sunos-64": "0.14.42",
|
||||||
|
"esbuild-windows-32": "0.14.42",
|
||||||
|
"esbuild-windows-64": "0.14.42",
|
||||||
|
"esbuild-windows-arm64": "0.14.42"
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"esbuild-android-64": {
|
||||||
|
"version": "0.14.42",
|
||||||
|
"resolved": "https://registry.npmjs.org/esbuild-android-64/-/esbuild-android-64-0.14.42.tgz",
|
||||||
|
"integrity": "sha512-P4Y36VUtRhK/zivqGVMqhptSrFILAGlYp0Z8r9UQqHJ3iWztRCNWnlBzD9HRx0DbueXikzOiwyOri+ojAFfW6A==",
|
||||||
|
"dev": true,
|
||||||
|
"optional": true
|
||||||
|
},
|
||||||
|
"esbuild-android-arm64": {
|
||||||
|
"version": "0.14.42",
|
||||||
|
"resolved": "https://registry.npmjs.org/esbuild-android-arm64/-/esbuild-android-arm64-0.14.42.tgz",
|
||||||
|
"integrity": "sha512-0cOqCubq+RWScPqvtQdjXG3Czb3AWI2CaKw3HeXry2eoA2rrPr85HF7IpdU26UWdBXgPYtlTN1LUiuXbboROhg==",
|
||||||
|
"dev": true,
|
||||||
|
"optional": true
|
||||||
|
},
|
||||||
|
"esbuild-darwin-64": {
|
||||||
|
"version": "0.14.42",
|
||||||
|
"resolved": "https://registry.npmjs.org/esbuild-darwin-64/-/esbuild-darwin-64-0.14.42.tgz",
|
||||||
|
"integrity": "sha512-ipiBdCA3ZjYgRfRLdQwP82rTiv/YVMtW36hTvAN5ZKAIfxBOyPXY7Cejp3bMXWgzKD8B6O+zoMzh01GZsCuEIA==",
|
||||||
|
"dev": true,
|
||||||
|
"optional": true
|
||||||
|
},
|
||||||
|
"esbuild-darwin-arm64": {
|
||||||
|
"version": "0.14.42",
|
||||||
|
"resolved": "https://registry.npmjs.org/esbuild-darwin-arm64/-/esbuild-darwin-arm64-0.14.42.tgz",
|
||||||
|
"integrity": "sha512-bU2tHRqTPOaoH/4m0zYHbFWpiYDmaA0gt90/3BMEFaM0PqVK/a6MA2V/ypV5PO0v8QxN6gH5hBPY4YJ2lopXgA==",
|
||||||
|
"dev": true,
|
||||||
|
"optional": true
|
||||||
|
},
|
||||||
|
"esbuild-freebsd-64": {
|
||||||
|
"version": "0.14.42",
|
||||||
|
"resolved": "https://registry.npmjs.org/esbuild-freebsd-64/-/esbuild-freebsd-64-0.14.42.tgz",
|
||||||
|
"integrity": "sha512-75h1+22Ivy07+QvxHyhVqOdekupiTZVLN1PMwCDonAqyXd8TVNJfIRFrdL8QmSJrOJJ5h8H1I9ETyl2L8LQDaw==",
|
||||||
|
"dev": true,
|
||||||
|
"optional": true
|
||||||
|
},
|
||||||
|
"esbuild-freebsd-arm64": {
|
||||||
|
"version": "0.14.42",
|
||||||
|
"resolved": "https://registry.npmjs.org/esbuild-freebsd-arm64/-/esbuild-freebsd-arm64-0.14.42.tgz",
|
||||||
|
"integrity": "sha512-W6Jebeu5TTDQMJUJVarEzRU9LlKpNkPBbjqSu+GUPTHDCly5zZEQq9uHkmHHl7OKm+mQ2zFySN83nmfCeZCyNA==",
|
||||||
|
"dev": true,
|
||||||
|
"optional": true
|
||||||
|
},
|
||||||
|
"esbuild-linux-32": {
|
||||||
|
"version": "0.14.42",
|
||||||
|
"resolved": "https://registry.npmjs.org/esbuild-linux-32/-/esbuild-linux-32-0.14.42.tgz",
|
||||||
|
"integrity": "sha512-Ooy/Bj+mJ1z4jlWcK5Dl6SlPlCgQB9zg1UrTCeY8XagvuWZ4qGPyYEWGkT94HUsRi2hKsXvcs6ThTOjBaJSMfg==",
|
||||||
|
"dev": true,
|
||||||
|
"optional": true
|
||||||
|
},
|
||||||
|
"esbuild-linux-64": {
|
||||||
|
"version": "0.14.42",
|
||||||
|
"resolved": "https://registry.npmjs.org/esbuild-linux-64/-/esbuild-linux-64-0.14.42.tgz",
|
||||||
|
"integrity": "sha512-2L0HbzQfbTuemUWfVqNIjOfaTRt9zsvjnme6lnr7/MO9toz/MJ5tZhjqrG6uDWDxhsaHI2/nsDgrv8uEEN2eoA==",
|
||||||
|
"dev": true,
|
||||||
|
"optional": true
|
||||||
|
},
|
||||||
|
"esbuild-linux-arm": {
|
||||||
|
"version": "0.14.42",
|
||||||
|
"resolved": "https://registry.npmjs.org/esbuild-linux-arm/-/esbuild-linux-arm-0.14.42.tgz",
|
||||||
|
"integrity": "sha512-STq69yzCMhdRaWnh29UYrLSr/qaWMm/KqwaRF1pMEK7kDiagaXhSL1zQGXbYv94GuGY/zAwzK98+6idCMUOOCg==",
|
||||||
|
"dev": true,
|
||||||
|
"optional": true
|
||||||
|
},
|
||||||
|
"esbuild-linux-arm64": {
|
||||||
|
"version": "0.14.42",
|
||||||
|
"resolved": "https://registry.npmjs.org/esbuild-linux-arm64/-/esbuild-linux-arm64-0.14.42.tgz",
|
||||||
|
"integrity": "sha512-c3Ug3e9JpVr8jAcfbhirtpBauLxzYPpycjWulD71CF6ZSY26tvzmXMJYooQ2YKqDY4e/fPu5K8bm7MiXMnyxuA==",
|
||||||
|
"dev": true,
|
||||||
|
"optional": true
|
||||||
|
},
|
||||||
|
"esbuild-linux-mips64le": {
|
||||||
|
"version": "0.14.42",
|
||||||
|
"resolved": "https://registry.npmjs.org/esbuild-linux-mips64le/-/esbuild-linux-mips64le-0.14.42.tgz",
|
||||||
|
"integrity": "sha512-QuvpHGbYlkyXWf2cGm51LBCHx6eUakjaSrRpUqhPwjh/uvNUYvLmz2LgPTTPwCqaKt0iwL+OGVL0tXA5aDbAbg==",
|
||||||
|
"dev": true,
|
||||||
|
"optional": true
|
||||||
|
},
|
||||||
|
"esbuild-linux-ppc64le": {
|
||||||
|
"version": "0.14.42",
|
||||||
|
"resolved": "https://registry.npmjs.org/esbuild-linux-ppc64le/-/esbuild-linux-ppc64le-0.14.42.tgz",
|
||||||
|
"integrity": "sha512-8ohIVIWDbDT+i7lCx44YCyIRrOW1MYlks9fxTo0ME2LS/fxxdoJBwHWzaDYhjvf8kNpA+MInZvyOEAGoVDrMHg==",
|
||||||
|
"dev": true,
|
||||||
|
"optional": true
|
||||||
|
},
|
||||||
|
"esbuild-linux-riscv64": {
|
||||||
|
"version": "0.14.42",
|
||||||
|
"resolved": "https://registry.npmjs.org/esbuild-linux-riscv64/-/esbuild-linux-riscv64-0.14.42.tgz",
|
||||||
|
"integrity": "sha512-DzDqK3TuoXktPyG1Lwx7vhaF49Onv3eR61KwQyxYo4y5UKTpL3NmuarHSIaSVlTFDDpcIajCDwz5/uwKLLgKiQ==",
|
||||||
|
"dev": true,
|
||||||
|
"optional": true
|
||||||
|
},
|
||||||
|
"esbuild-linux-s390x": {
|
||||||
|
"version": "0.14.42",
|
||||||
|
"resolved": "https://registry.npmjs.org/esbuild-linux-s390x/-/esbuild-linux-s390x-0.14.42.tgz",
|
||||||
|
"integrity": "sha512-YFRhPCxl8nb//Wn6SiS5pmtplBi4z9yC2gLrYoYI/tvwuB1jldir9r7JwAGy1Ck4D7sE7wBN9GFtUUX/DLdcEQ==",
|
||||||
|
"dev": true,
|
||||||
|
"optional": true
|
||||||
|
},
|
||||||
|
"esbuild-netbsd-64": {
|
||||||
|
"version": "0.14.42",
|
||||||
|
"resolved": "https://registry.npmjs.org/esbuild-netbsd-64/-/esbuild-netbsd-64-0.14.42.tgz",
|
||||||
|
"integrity": "sha512-QYSD2k+oT9dqB/4eEM9c+7KyNYsIPgzYOSrmfNGDIyJrbT1d+CFVKvnKahDKNJLfOYj8N4MgyFaU9/Ytc6w5Vw==",
|
||||||
|
"dev": true,
|
||||||
|
"optional": true
|
||||||
|
},
|
||||||
|
"esbuild-openbsd-64": {
|
||||||
|
"version": "0.14.42",
|
||||||
|
"resolved": "https://registry.npmjs.org/esbuild-openbsd-64/-/esbuild-openbsd-64-0.14.42.tgz",
|
||||||
|
"integrity": "sha512-M2meNVIKWsm2HMY7+TU9AxM7ZVwI9havdsw6m/6EzdXysyCFFSoaTQ/Jg03izjCsK17FsVRHqRe26Llj6x0MNA==",
|
||||||
|
"dev": true,
|
||||||
|
"optional": true
|
||||||
|
},
|
||||||
|
"esbuild-sunos-64": {
|
||||||
|
"version": "0.14.42",
|
||||||
|
"resolved": "https://registry.npmjs.org/esbuild-sunos-64/-/esbuild-sunos-64-0.14.42.tgz",
|
||||||
|
"integrity": "sha512-uXV8TAZEw36DkgW8Ak3MpSJs1ofBb3Smkc/6pZ29sCAN1KzCAQzsje4sUwugf+FVicrHvlamCOlFZIXgct+iqQ==",
|
||||||
|
"dev": true,
|
||||||
|
"optional": true
|
||||||
|
},
|
||||||
|
"esbuild-windows-32": {
|
||||||
|
"version": "0.14.42",
|
||||||
|
"resolved": "https://registry.npmjs.org/esbuild-windows-32/-/esbuild-windows-32-0.14.42.tgz",
|
||||||
|
"integrity": "sha512-4iw/8qWmRICWi9ZOnJJf9sYt6wmtp3hsN4TdI5NqgjfOkBVMxNdM9Vt3626G1Rda9ya2Q0hjQRD9W1o+m6Lz6g==",
|
||||||
|
"dev": true,
|
||||||
|
"optional": true
|
||||||
|
},
|
||||||
|
"esbuild-windows-64": {
|
||||||
|
"version": "0.14.42",
|
||||||
|
"resolved": "https://registry.npmjs.org/esbuild-windows-64/-/esbuild-windows-64-0.14.42.tgz",
|
||||||
|
"integrity": "sha512-j3cdK+Y3+a5H0wHKmLGTJcq0+/2mMBHPWkItR3vytp/aUGD/ua/t2BLdfBIzbNN9nLCRL9sywCRpOpFMx3CxzA==",
|
||||||
|
"dev": true,
|
||||||
|
"optional": true
|
||||||
|
},
|
||||||
|
"esbuild-windows-arm64": {
|
||||||
|
"version": "0.14.42",
|
||||||
|
"resolved": "https://registry.npmjs.org/esbuild-windows-arm64/-/esbuild-windows-arm64-0.14.42.tgz",
|
||||||
|
"integrity": "sha512-+lRAARnF+hf8J0mN27ujO+VbhPbDqJ8rCcJKye4y7YZLV6C4n3pTRThAb388k/zqF5uM0lS5O201u0OqoWSicw==",
|
||||||
|
"dev": true,
|
||||||
|
"optional": true
|
||||||
|
},
|
||||||
|
"typescript": {
|
||||||
|
"version": "4.7.2",
|
||||||
|
"resolved": "https://registry.npmjs.org/typescript/-/typescript-4.7.2.tgz",
|
||||||
|
"integrity": "sha512-Mamb1iX2FDUpcTRzltPxgWMKy3fhg0TN378ylbktPGPK/99KbDtMQ4W1hwgsbPAsG3a0xKa1vmw4VKZQbkvz5A==",
|
||||||
|
"dev": true
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
10
serverless/cloudflare/package.json
Normal file
10
serverless/cloudflare/package.json
Normal file
@@ -0,0 +1,10 @@
|
|||||||
|
{
|
||||||
|
"devDependencies": {
|
||||||
|
"esbuild": "^0.14.42",
|
||||||
|
"typescript": "^4.7.2"
|
||||||
|
},
|
||||||
|
"scripts": {
|
||||||
|
"build": "esbuild worker.ts --target=es2020 --outfile=dist/worker.js --format=esm --bundle --banner:js=//$(git describe --always)",
|
||||||
|
"tsc": "tsc --noEmit --watch"
|
||||||
|
}
|
||||||
|
}
|
||||||
119
serverless/cloudflare/worker.ts
Normal file
119
serverless/cloudflare/worker.ts
Normal file
@@ -0,0 +1,119 @@
|
|||||||
|
import { PMTiles, Source } from "../../js";
|
||||||
|
|
||||||
|
interface Env {
|
||||||
|
BUCKET: R2Bucket;
|
||||||
|
CACHE_TTL: string;
|
||||||
|
}
|
||||||
|
|
||||||
|
interface CacheEntry {
|
||||||
|
lastUsed: number;
|
||||||
|
buffer: DataView;
|
||||||
|
}
|
||||||
|
|
||||||
|
export class LRUCache {
|
||||||
|
entries: Map<string, CacheEntry>;
|
||||||
|
counter: number;
|
||||||
|
|
||||||
|
constructor() {
|
||||||
|
this.entries = new Map<string, CacheEntry>();
|
||||||
|
this.counter = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
async get(
|
||||||
|
bucket: R2Bucket,
|
||||||
|
key: string,
|
||||||
|
offset: number,
|
||||||
|
length: number
|
||||||
|
): Promise<[boolean, DataView]> {
|
||||||
|
let cacheKey = key + ":" + offset + "-" + length;
|
||||||
|
let val = this.entries.get(cacheKey);
|
||||||
|
if (val) {
|
||||||
|
val.lastUsed = this.counter++;
|
||||||
|
return [true, val.buffer];
|
||||||
|
}
|
||||||
|
|
||||||
|
let resp = await bucket.get(key, {
|
||||||
|
range: { offset: offset, length: length },
|
||||||
|
});
|
||||||
|
let a = await (resp as R2ObjectBody).arrayBuffer();
|
||||||
|
let d = new DataView(a);
|
||||||
|
|
||||||
|
this.entries.set(cacheKey, {
|
||||||
|
lastUsed: this.counter++,
|
||||||
|
buffer: d,
|
||||||
|
});
|
||||||
|
if (this.entries.size > 128) {
|
||||||
|
let minUsed = Infinity;
|
||||||
|
let minKey = undefined;
|
||||||
|
this.entries.forEach((val, key) => {
|
||||||
|
if (val.lastUsed < minUsed) {
|
||||||
|
minUsed = val.lastUsed;
|
||||||
|
minKey = key;
|
||||||
|
}
|
||||||
|
});
|
||||||
|
if (minKey) this.entries.delete(minKey);
|
||||||
|
}
|
||||||
|
|
||||||
|
return [false, d];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
let worker_cache = new LRUCache();
|
||||||
|
|
||||||
|
const TILE = new RegExp(
|
||||||
|
/^\/([0-9a-zA-Z\/!\-_\.\*\'\(\)]+)\/(\d+)\/(\d+)\/(\d+).pbf$/
|
||||||
|
);
|
||||||
|
|
||||||
|
export default {
|
||||||
|
async fetch(
|
||||||
|
request: Request,
|
||||||
|
env: Env,
|
||||||
|
context: ExecutionContext
|
||||||
|
): Promise<Response> {
|
||||||
|
let url = new URL(request.url);
|
||||||
|
|
||||||
|
let match = url.pathname.match(TILE);
|
||||||
|
|
||||||
|
let subrequests = 1;
|
||||||
|
|
||||||
|
if (match) {
|
||||||
|
class TempSource {
|
||||||
|
getKey() {
|
||||||
|
return "";
|
||||||
|
}
|
||||||
|
|
||||||
|
async getBytes(offset: number, length: number) {
|
||||||
|
let result = await worker_cache.get(
|
||||||
|
env.BUCKET,
|
||||||
|
match![1] + ".pmtiles",
|
||||||
|
offset,
|
||||||
|
length
|
||||||
|
);
|
||||||
|
|
||||||
|
if (!result[0]) subrequests++;
|
||||||
|
|
||||||
|
return result[1];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
let source = new TempSource();
|
||||||
|
|
||||||
|
let p = new PMTiles(source);
|
||||||
|
let entry = await p.getZxy(+match[2], +match[3], +match[4]);
|
||||||
|
if (entry) {
|
||||||
|
let tile = await env.BUCKET.get(match![1] + ".pmtiles", {
|
||||||
|
range: { offset: entry.offset, length: entry.length },
|
||||||
|
});
|
||||||
|
|
||||||
|
let headers = new Headers();
|
||||||
|
headers.set("Access-Control-Allow-Origin", "*");
|
||||||
|
headers.set("Content-Type", "application/x-protobuf");
|
||||||
|
headers.set("X-Pmap-Subrequests", subrequests.toString());
|
||||||
|
return new Response((tile as R2ObjectBody).body, {
|
||||||
|
headers: headers,
|
||||||
|
});
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return new Response("Not Found");
|
||||||
|
},
|
||||||
|
};
|
||||||
Reference in New Issue
Block a user