{"id":6379,"date":"2019-04-25T07:04:01","date_gmt":"2019-04-24T22:04:01","guid":{"rendered":"https:\/\/gunmagisgeek.com\/wordpress\/?p=6379"},"modified":"2021-02-19T16:32:01","modified_gmt":"2021-02-19T07:32:01","slug":"cdncloudflare-workers%e3%81%ae%e4%b8%ad%e3%81%a7%e5%9c%b0%e7%90%86%e7%a9%ba%e9%96%93%e3%83%87%e3%83%bc%e3%82%bf%e3%81%ae%e8%a8%88%e7%ae%97%e5%87%a6%e7%90%86%e3%82%92%e8%a1%8c%e3%81%84%e3%80%81","status":"publish","type":"post","link":"https:\/\/gunmagisgeek.com\/blog\/javascript\/6379","title":{"rendered":"CDN(Cloudflare Workers)\u306e\u4e2d\u3067\u5730\u7406\u7a7a\u9593\u30c7\u30fc\u30bf\u306e\u8a08\u7b97\u51e6\u7406\u3092\u884c\u3044\u3001\u7d50\u679c\u3092GeoJSON\u3068\u3057\u3066\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u8fd4\u3059\u3002"},"content":{"rendered":"\n<p><strong>\u203b\u3053\u306e\u8a18\u4e8b\u306f\u3001\u73fe\u5728\u306eworkers\u306e\u4ed5\u69d8\u306b\u304f\u3089\u3079\u3066\u3060\u3044\u3076\u53e4\u3044\u5185\u5bb9\u3068\u306a\u308a\u3064\u304b\u3048\u306a\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u6700\u65b0\u306eworkers\u306b\u3064\u3044\u3066\u306f\u516c\u5f0f\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/strong><\/p>\n\n\n\n<p><a href=\"https:\/\/developers.cloudflare.com\/workers\/\" data-type=\"URL\" data-id=\"https:\/\/developers.cloudflare.com\/workers\/\">Cloudflare Workers docs<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n<p>\u304a\u624b\u8efd\u30a8\u30c3\u30b8\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\uff01<\/p>\n<h3>\u767a\u7aef<\/h3>\n<p>Service Worker\u306e\u52c9\u5f37\u306b\u3001JSON\u30c7\u30fc\u30bf\u3092\u30da\u30a4\u30ed\u30fc\u30c9\u3057\u305fPOST\u30ea\u30af\u30a8\u30b9\u30c8\u3092Service Worker\u3067\u30d5\u30c3\u30af\u3057\u3001\u305d\u306e\u307e\u3093\u307e\u53d7\u3051\u53d6\u3063\u305fJSON\u3092\u30ec\u30b9\u30dd\u30f3\u30b9\u3068\u3057\u3066\u8fd4\u3059\u3068\u3044\u3046\u30a8\u30b3\u30fc\u30b5\u30fc\u30d0\u7684\u306a\u30b3\u30fc\u30c9\u3092\u66f8\u3044\u3066\u3044\u305f\u306e\u3067\u3059\u304c\u3001\u305d\u306e\u6700\u4e2d\u300cService Worker\u306e\u4e2d\u3067GeoJSON\u3092\u751f\u6210\u3057\u3066\u8fd4\u3057\u305f\u308a\u3059\u308b\u3068\u9762\u767d\u3044\u3093\u3058\u3083\u306a\u3044\u304b\u300d\u3068\u601d\u3044\u3064\u3044\u3066\u8107\u9053\u306b\u9038\u308c\u305f\u306e\u304c\u304d\u3063\u304b\u3051\u3067\u3059\u3002<br \/>\u7d50\u679c\u7684\u306bservice Worker\u306e\u4e2d\u3067GeoJSON\u3092\u751f\u6210\u3059\u308b\u3053\u3068\u306b\u306f\u3042\u307e\u308a\u610f\u5473\u304c\u306a\u304b\u3063\u305f\u306e\u3067\u3059\u304c\u3001CDN\u4e0a\u3067JavaScript\u3092\u5b9f\u884c\u3067\u304d\u308bCloudflare Workers\u304cService Worker\u306eAPI\u3092\u7528\u3044\u3066\u5b9f\u88c5\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001Cloudflare Workers\u4e0a\u306b\u79fb\u3057\u3066\u5b9f\u884c\u3059\u308b\u3053\u3068\u3067\u8ca0\u8377\u304c\u9ad8\u304f\u306a\u308a\u304c\u3061\u306a\u5730\u7406\u7a7a\u9593\u30c7\u30fc\u30bf\u306e\u5206\u6790\u51e6\u7406\u3092CDN\u4e0a\u3067\u884c\u3048\u308b\u53ef\u80fd\u6027\u304c\u898b\u3048\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n<h3>Service Worker<\/h3>\n<p>\u307e\u305a\u306f\u3001\u30b7\u30f3\u30d7\u30eb\u306bService Worker\u306e\u4e2d\u3067GeoJSON\u3092\u751f\u6210\u3059\u308b\u30b5\u30f3\u30d7\u30eb\u3092\u8a66\u3057\u3066\u307f\u307e\u3057\u305f\u3002<br \/>POST\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u30da\u30a4\u30ed\u30fc\u30c9\u3055\u308c\u305fbbox(\u7bc4\u56f2\u3092\u6307\u5b9a\u3059\u308b\uff12\u70b9\u306e\u5ea7\u6a19)\u3092\u53d7\u3051\u53d6\u308a\u3001Turf.js\u3092\u4f7f\u3063\u3066\u6307\u5b9a\u7bc4\u56f2\u5185\u306e\u30dd\u30a4\u30f3\u30c8\u30b0\u30ea\u30c3\u30c9\u3092GeoJSON\u3068\u3057\u3066\u751f\u6210\u3057\u8fd4\u5374\u3057\u307e\u3059\u3002<br \/>Turf.js\u306e\u8aad\u307f\u8fbc\u307f\u3092importScripts\u3067\u306a\u304frequire\u3067\u884c\u306a\u3063\u3066\u3044\u308b\u306e\u306f\u5f8c\u307b\u3069Cloudflare Workers\u306b\u767b\u9332\u3059\u308b\u517c\u306d\u5408\u3044\u3067webpack\u3092\u4f7f\u3063\u3066\u4e00\u679a\u306ejs\u30d5\u30a1\u30a4\u30eb\u306b\u7d50\u5408\u3057\u3066\u3044\u308b\u305f\u3081\u3067\u3059\u3002<br \/>\uff08\u4e00\u3064\u306ejs\u30d5\u30a1\u30a4\u30eb\u306b\u7d50\u5408\u3067\u304d\u308c\u3070\u306a\u3093\u3067\u3082\u3044\u3044\u306e\u3067\u3059\u304c\u3001webpack\u304c\u4e00\u756a\u306a\u308c\u3066\u3044\u305f\u306e\u3067)<\/p>\n<pre class=\"lang:xhtml decode:true \" title=\"index.html\">&lt;!DOCTYPE html&gt;\n&lt;html lang='jp'&gt;\n&lt;head&gt;\n&lt;\/head&gt;\n&lt;body&gt;\n&lt;button id=\"btn\"&gt;Send bbox&lt;\/button&gt;\n\n&lt;script&gt;\n\/\/\u30b5\u30fc\u30d3\u30b9\u30ef\u30fc\u30ab\u30fc\u306e\u767b\u9332    \nnavigator.serviceWorker.register('main.js').then(function(reg) {\n    if(!reg.active) location.reload();\n}).catch(function(error) {\n    console.log('Service worker:' + error);\n});\n\n\/\/\u30dc\u30bf\u30f3\u304c\u30af\u30ea\u30c3\u30af\u3055\u308c\u305f\u3089\u67b6\u7a7a\u306ejson\u30d5\u30a1\u30a4\u30eb(pointGrid.json)\u306b\u305f\u3044\u3057\u3066POST\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u4fe1\u3059\u308b\u3002\nconst bbox = [ -180, -90, 180, 90 ];\ndocument.querySelector(\"#btn\").addEventListener(\"click\", function(){\n    sendPostRequest(\"pointGrid.json\",  bbox)\n        .then(response =&gt; {\n            \/\/\u30b5\u30fc\u30d3\u30b9\u30ef\u30fc\u30ab\u30fc\u306e\u4e2d\u3067\u751f\u6210\u3055\u308c\u305fGeoJSON\u3092\u53d7\u3051\u53d6\u308b\n            console.log(response);\n        });\n});\n\n\n\/\/POST\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u4fe1\u3059\u308b\nfunction sendPostRequest(url, data) {\n    return fetch(url, {\n        method: \"POST\", \n        mode: \"cors\", \n        headers: {\n            \"Content-Type\": \"application\/json; charset=utf-8\",\n        },\n        body: JSON.stringify(data), \n    })\n    .then(response =&gt; response.json())\n    .catch(error =&gt; console.error(error));\n}\n\n&lt;\/script&gt;    \n&lt;\/body&gt;\n&lt;\/html&gt;<\/pre>\n<pre class=\"lang:js decode:true \" title=\"sw.js\">\/\/Service Worker\u767b\u9332\u6642\u306b\u767a\u706b\u3059\u308b\u30a4\u30d9\u30f3\u30c8\nself.addEventListener('install', function(event) {\n    console.log(event);\n});\n\n\/\/\u30ea\u30af\u30a8\u30b9\u30c8\u30d5\u30c3\u30af\u6642\u306b\u767a\u706b\u3059\u308b\u30a4\u30d9\u30f3\u30c8\nself.addEventListener('fetch', function(event) {\n    \/\/pointGrid.json\u3078\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u5bfe\u3057\u3066\u51e6\u7406\u3092\u884c\u3046\n    if (event.request.url.match(\/pointGrid.json\/i)) {\n        event.respondWith(\n            event.request.json().then(function(bbox) {\n                \/\/\u9001\u4fe1\u3055\u308c\u305fbbox\u306e\u5024\u3092\u78ba\u8a8d\n                console.log(bbox);\n                \/\/turf.js\u3092\u4f7f\u3063\u3066\u6307\u5b9a\u7bc4\u56f2\u5185\u306e\u30dd\u30a4\u30f3\u30c8\u30b0\u30ea\u30c3\u30c9\u3092\u751f\u6210\u3059\u308b\n                var res = turf.pointGrid(bbox\u30010.5);\n                return new Response(JSON.stringify(res), {\n                    status: 200,\n                    statusText: 'OK',\n                    headers: {\n                        'Content-Type': 'application\/json'\n                    }\n                });\n            })\n        );\n    }\n});\n<\/pre>\n<p>Service Worker\u304c\u6b63\u3057\u304f\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u304b\u306f\u3001Chrome\u958b\u767a\u8005\u30c4\u30fc\u30eb\u306eApplication\u306e\u30bf\u30d6\u3067\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br \/>\u307e\u305f\u3001\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3084\u524a\u9664\u3082\u3053\u306e\u30bf\u30d6\u4e0a\u3067\u884c\u3048\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6380 border\" src=\"http:\/\/gunmagisgeek.com\/blog\/wp-content\/uploads\/2019\/04\/swreslutapplication1904241.png\" alt=\"Seervice Worker\u304c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u767b\u9332\u3055\u308c\u305f\u69d8\u5b50\" width=\"728\" height=\"506\" srcset=\"https:\/\/gunmagisgeek.com\/blog\/wp-content\/uploads\/2019\/04\/swreslutapplication1904241.png 728w, https:\/\/gunmagisgeek.com\/blog\/wp-content\/uploads\/2019\/04\/swreslutapplication1904241-216x150.png 216w\" sizes=\"auto, (max-width: 728px) 100vw, 728px\" \/><\/p>\n<p>Service Worker\u304c\u6b63\u3057\u304f\u767b\u9332\u3055\u308c\u3066\u3044\u308c\u3070\u3001\u300cSend bbox\u300d\u3092\u62bc\u3057\u3066\u751f\u6210\u3055\u308c\u305fGeoJSON\u304c\u3061\u3083\u3093\u3068\u8fd4\u3063\u3066\u304f\u308b\u304b\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6381 border\" src=\"http:\/\/gunmagisgeek.com\/blog\/wp-content\/uploads\/2019\/04\/swreslutconsole1904241-e1556156712153.png\" alt=\"\u30dc\u30bf\u30f3\u3092\u62bc\u3057\u305f\u969b\u306e\u30b3\u30f3\u30bd\u30fc\u30eb\u3078\u306e\u51fa\u529b\" width=\"505\" height=\"535\" srcset=\"https:\/\/gunmagisgeek.com\/blog\/wp-content\/uploads\/2019\/04\/swreslutconsole1904241-e1556156712153.png 505w, https:\/\/gunmagisgeek.com\/blog\/wp-content\/uploads\/2019\/04\/swreslutconsole1904241-e1556156712153-142x150.png 142w\" sizes=\"auto, (max-width: 505px) 100vw, 505px\" \/><\/p>\n<p>Network\u30bf\u30d6\u3067pointGrid.json\u306e\u901a\u4fe1\u5185\u5bb9\u3092\u307f\u308b\u3068\u3001\u30c7\u30fc\u30bf\u304cService Worker\u304b\u3089\u8fd4\u5374\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6382 border\" src=\"http:\/\/gunmagisgeek.com\/blog\/wp-content\/uploads\/2019\/04\/swreslutnetwork1904241.png\" alt=\"service worker\u3092\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bf\u30d6\u3067\u78ba\u8a8d\" width=\"874\" height=\"179\" srcset=\"https:\/\/gunmagisgeek.com\/blog\/wp-content\/uploads\/2019\/04\/swreslutnetwork1904241.png 874w, https:\/\/gunmagisgeek.com\/blog\/wp-content\/uploads\/2019\/04\/swreslutnetwork1904241-300x61.png 300w, https:\/\/gunmagisgeek.com\/blog\/wp-content\/uploads\/2019\/04\/swreslutnetwork1904241-768x157.png 768w\" sizes=\"auto, (max-width: 874px) 100vw, 874px\" \/><\/p>\n<h3>Cloudflare Workers<\/h3>\n<p><a href=\"https:\/\/www.cloudflare.com\/ja-jp\/products\/cloudflare-workers\/\">Cloudflare Workers<\/a> \u306fCDN\u30d7\u30ed\u30d0\u30a4\u30c0\u306eCloudflare\u304c\u63d0\u4f9b\u3059\u308b\u3001CDN\u306e\u30a8\u30c3\u30b8\u306bJavaScript\u30b3\u30fc\u30c9\u3092\u914d\u7f6e\u3057\u5b9f\u884c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u30b5\u30fc\u30d3\u30b9\u3067\u3059\u3002<\/p>\n<blockquote>\n<p>Cloudflare Workers\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u958b\u767a\u8005\u306f\u30a8\u30f3\u30c9\u30e6\u30fc\u30b6\u30fc\u306e\u8fd1\u304f\u306b\u3042\u308bCloudflare\u306e\u30a8\u30c3\u30b8\u3067JavaScript\u30b3\u30fc\u30c9\u3092\u5c55\u958b\u3067\u304d\u307e\u3059\u3002Service Workers API\u306b\u57fa\u3065\u3044\u3066\u3001\u4eca\u3084\u958b\u767a\u8005\u306f\u30e6\u30fc\u30b6\u30fc\u306e\u30c7\u30d0\u30a4\u30b9\u4e0a\u306e\u30d6\u30e9\u30a6\u30b6\u30fc\u3092\u7d4c\u7531\u305b\u305a\u306b\u3001\u30b3\u30fc\u30c9\u3092\u5b89\u5168\u306b\u5b9f\u884c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/blockquote>\n<p>\u53c2\u8003\uff1a<a href=\"https:\/\/www.publickey1.jp\/blog\/18\/vmv8isolatecloudflareworkers.html\">VM\u3088\u308a\u30b3\u30f3\u30c6\u30ca\u3088\u308a\u3082\u3055\u3089\u306b\u8efd\u91cf\u306a\u5206\u96e2\u6280\u8853\u3001V8\u306eIsolate\u3092\u7528\u3044\u3066\u30b5\u30fc\u30d0\u30ec\u30b9\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u63d0\u4f9b\u3059\u308bCloudflare Workers<\/a><\/p>\n<p>Service Worker\u3068\u3057\u3066\u6b63\u3057\u304f\u52d5\u4f5c\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u3066\u3044\u308c\u3070\u3001\u30b5\u30fc\u30d0\u30fc\u306bindex.html\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3057\u30d3\u30eb\u30c9\u3057\u305fjs\u3092Cloudflare Workers\u306e\u30a8\u30c7\u30a3\u30bf\u306b\u30b3\u30d4\u30da\u3059\u308c\u3070\u307b\u307c\u554f\u984c\u306a\u304f\u52d5\u4f5c\u3059\u308b\u306f\u305a\u3067\u3059\u3002<br \/>(index.html\u3092\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u3059\u308b\u969b\u306f\u3001service worker\u3092\u767b\u9332\u3059\u308b\u30b3\u30fc\u30c9\u306f\u524a\u9664\u3057\u3066\u304a\u304d\u307e\u3059\uff09<\/p>\n<p>\u305d\u306e\u307e\u307e\u30b3\u30d4\u30da\u3057\u3066\u3082\u3064\u307e\u3089\u306a\u3044\u306e\u3067\u3001index.html\u3067\u306fleaflet\u3092\u8aad\u307f\u8fbc\u307f\u5730\u56f3\u4e0a\u3067bbox\u3092\u6307\u5b9a\u3067\u304d\u308b\u3088\u3046\u306b\u5909\u66f4\u3057\u307e\u3057\u305f\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-6385 border\" src=\"http:\/\/gunmagisgeek.com\/blog\/wp-content\/uploads\/2019\/04\/cloudflareworkersMaps19042412-1024x718.png\" alt=\"cloudflare workers\u3092\u4f7f\u3063\u305f\u5730\u56f3\" width=\"680\" height=\"477\" srcset=\"https:\/\/gunmagisgeek.com\/blog\/wp-content\/uploads\/2019\/04\/cloudflareworkersMaps19042412-1024x718.png 1024w, https:\/\/gunmagisgeek.com\/blog\/wp-content\/uploads\/2019\/04\/cloudflareworkersMaps19042412-214x150.png 214w, https:\/\/gunmagisgeek.com\/blog\/wp-content\/uploads\/2019\/04\/cloudflareworkersMaps19042412-768x539.png 768w, https:\/\/gunmagisgeek.com\/blog\/wp-content\/uploads\/2019\/04\/cloudflareworkersMaps19042412.png 1357w\" sizes=\"auto, (max-width: 680px) 100vw, 680px\" \/><\/p>\n<p>\u4e00\u898b\u3059\u308b\u3068\u6628\u65e5\u3042\u3052\u305f\u8a18\u4e8b\u306e\u30b5\u30f3\u30d7\u30eb\u3068\u306a\u306b\u3082\u5909\u308f\u3063\u3066\u3044\u306a\u3044\u3088\u3046\u306b\u898b\u3048\u307e\u3059\u304c\u3001\u3053\u3053\u3067\u306eTurf.js\u3092\u4f7f\u3063\u305f\u5730\u7406\u60c5\u5831\u30c7\u30fc\u30bf\u306e\u51e6\u7406\u306f\u5168\u3066CDN\u4e0a\u3067\u5b9f\u884c\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"lang:js decode:true \" title=\"index.html\">&lt;!DOCTYPE html&gt;\n&lt;html lang='jp'&gt;\n&lt;head&gt;\n&lt;link rel=\"stylesheet\" href=\"https:\/\/unpkg.com\/leaflet@1.4.0\/dist\/leaflet.css\"\nintegrity=\"sha512-puBpdR0798OZvTTbP4A8Ix\/l+A4dHDD0DGqYW6RQ+9jxkRFclaxxQb\/SJAWZfWAkuyeQUytO7+7N4QKrDh+drA==\"\ncrossorigin=\"\"\/&gt;\n&lt;script src=\"https:\/\/unpkg.com\/leaflet@1.4.0\/dist\/leaflet.js\"\nintegrity=\"sha512-QVftwZFqvtRNi0ZyCtsznlKSWOStnDORoefr1enyq5mVL4tmKB3S\/EnC3rRJcxCPavG10IcrVGSmPh6Qw5lwrg==\"\ncrossorigin=\"\"&gt;&lt;\/script&gt;\n\n&lt;link rel=\"stylesheet\" href=\"https:\/\/unpkg.com\/leaflet.pm@latest\/dist\/leaflet.pm.css\" \/&gt;\n&lt;script src=\"https:\/\/unpkg.com\/leaflet.pm@latest\/dist\/leaflet.pm.min.js\"&gt;&lt;\/script&gt;\n\n&lt;style&gt;\nhtml, body {\n    width: 100%;\n    height: 100%;\n    padding: 0px;\n    margin: 0px;\n}\n\n#mapid {\n    width:100%;\n    height:100%;\n}\n\n&lt;\/style&gt;\n\n&lt;\/head&gt;\n&lt;body&gt;\n&lt;div id=\"mapid\"&gt;&lt;\/div&gt;\n\n&lt;script src='\/\/unpkg.com\/d3@5.0.0\/dist\/d3.min.js'&gt;&lt;\/script&gt;\n\n&lt;script&gt;\nvar mymap = L.map('mapid').setView([36.3426631, 138.6092733], 13);\nL.tileLayer('https:\/\/api.tiles.mapbox.com\/v4\/{id}\/{z}\/{x}\/{y}.png?access_token={accessToken}', {\n    attribution: 'Map data &amp;copy; &lt;a href=\"https:\/\/www.openstreetmap.org\/\"&gt;OpenStreetMap&lt;\/a&gt; contributors, &lt;a href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/2.0\/\"&gt;CC-BY-SA&lt;\/a&gt;, Imagery \u00a9 &lt;a href=\"https:\/\/www.mapbox.com\/\"&gt;Mapbox&lt;\/a&gt;',\n    maxZoom: 18,\n    id: 'mapbox.streets',\n    accessToken: 'Mapbox\u30a2\u30af\u30bb\u30b9\u30c8\u30fc\u30af\u3092\u8a18\u8ff0\u3059\u308b'\n}).addTo(mymap);\n\n\/\/draw Tool\u306e\u8a2d\u5b9a(drawReactang\u4ee5\u5916\u3092\u975e\u8868\u793a\u306b\u3057\u3066\u3044\u308b)\nvar controler = mymap.pm.addControls({\n  position: 'topleft',\n  drawMarker:false,\n  drawPolyline:false,\n  drawRectangle:true,\n  drawPolygon:false,\n  drawCircle: false,\n  editMode:false,\n  dragMode:false,\n  cutPolygon:false,\n  removalMode:false,\n});\n\n\n\/\/\u5730\u56f3\u4e0a\u306bRectangle\u304c\u4f5c\u6210\u3055\u308c\u305f\u3089\u767a\u706b\u3059\u308b\nmymap.on(\"pm:create\", function(e){\n    const bbox = e.layer.getBounds().toBBoxString().split(\",\")\n        .map(function(d){ return +d });\n\n    sendPostRequest(\"cloudflareWorkers\/pointGrid.json\", bbox)\n        .then(function(response){\n            if(response.error){\n                alert(response.error) \n                 mymap.removeLayer(e.layer);\n            }else{\n                L.geoJSON(response).addTo(mymap);\n            }         \n        });\n\n});\n\n\/\/POST\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u4fe1\nfunction sendPostRequest(url, data) {\n    return fetch(url, {\n        method: \"POST\",\n        headers: {\n            \"Content-Type\": \"application\/json; charset=utf-8\",\n        },\n        body: JSON.stringify(data)\n    })\n    .then(function(response){ return response.json() })\n    .catch(error =&gt; console.error(error));\n}\n\n&lt;\/script&gt;    \n&lt;\/body&gt;\n&lt;\/html&gt;<\/pre>\n<p>Turf.js\u306f\u4e38\u3054\u3068\u8aad\u307f\u8fbc\u3080\u3068\u30d3\u30eb\u30c9\u5f8c\u306e\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u304c\u5927\u304d\u304f\u306a\u308b\u306e\u3067\u3001\u5fc5\u8981\u306a\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u307f\u8aad\u307f\u8fbc\u3080\u3088\u3046\u306b\u5909\u66f4\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"lang:js decode:true \" title=\"Cloudflare Workers\">const bboxPolygon = require('turf-bbox-polygon');\nconst pointGrid = require('turf-point-grid');\nconst areaMeasure = require('turf-area');\n\nmodule.exports = (event) =&gt; {\n    event.respondWith(\n        event.request.json().then(function(bbox) {\n            \/\/\u9078\u629e\u7bc4\u56f2\u306e\u9762\u7a4d\u3092\u8a08\u7b97\u3059\u308b\n            var area = areaMeasure(bboxPolygon(bbox));\n            \/\/\u30ec\u30b9\u30dd\u30f3\u30b9\u30d8\u30c3\u30c0\n            var responseheader = {\n                status: 200,\n                statusText: 'OK',\n                headers: {\n                    'Content-Type': 'application\/json'\n                }\n            };\n\n            \/\/\u9078\u629e\u7bc4\u56f2\u304c\u5e83\u3059\u304e\u308b\u5834\u5408\u306f\u30a8\u30e9\u30fc\u3092\u8fd4\u3059\n            if (area \/ 1000 &gt; 800000) {\n                return new Response(JSON.stringify({ error: '\u9078\u629e\u7bc4\u56f2\u304c\u5927\u304d\u3059\u304e\u307e\u3059' }), responseheader);\n            } else {\n                \/\/\u30dd\u30a4\u30f3\u30c8\u30b0\u30ea\u30c3\u30c9\u3092\u751f\u6210\u3059\u308b\n                var res = pointGrid(bbox, 0.5);\n                return new Response(JSON.stringify(res), responseheader);\n            }\n        })\n    );\n};\n<\/pre>\n<p>\u4e0a\u8a18\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u3001Cloudflare\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u306eWorkers Editor\u3067\u300cScript\u300d\u306e\u30a8\u30ea\u30a2\u306b\u8cbc\u308a\u4ed8\u3051\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-6384 border\" src=\"http:\/\/gunmagisgeek.com\/blog\/wp-content\/uploads\/2019\/04\/cloudflareworkers19042412-1024x673.png\" alt=\"Cloudflare Workers Editor\u753b\u9762\u306e\u30b9\u30af\u30b7\u30e7\" width=\"680\" height=\"447\" srcset=\"https:\/\/gunmagisgeek.com\/blog\/wp-content\/uploads\/2019\/04\/cloudflareworkers19042412-1024x673.png 1024w, https:\/\/gunmagisgeek.com\/blog\/wp-content\/uploads\/2019\/04\/cloudflareworkers19042412-228x150.png 228w, https:\/\/gunmagisgeek.com\/blog\/wp-content\/uploads\/2019\/04\/cloudflareworkers19042412-768x505.png 768w, https:\/\/gunmagisgeek.com\/blog\/wp-content\/uploads\/2019\/04\/cloudflareworkers19042412.png 1756w\" sizes=\"auto, (max-width: 680px) 100vw, 680px\" \/><\/p>\n<p>\u767b\u9332\u3055\u308c\u305f\u30b9\u30af\u30ea\u30d7\u30c8\u306f\u3001\u5373\u5ea7\u306bCDN\u306b\u914d\u4fe1\u3055\u308c\u52d5\u4f5c\u3059\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>Cloudflare Workers \u611f\u60f3<\/h3>\n<p>\u601d\u3044\u306e\u5916\u3001\u7c21\u5358\u306b\u30b5\u30af\u30c3\u3068\u4f7f\u3048\u3066\u3068\u3066\u3082\u697d\u3057\u3044\u3067\u3059\u3002<br \/>Lambda@Edge\u306f\u3061\u3087\u3063\u3068\u30cf\u30fc\u30c9\u30eb\u9ad8\u3044\u306a\u3063\u3066\u611f\u3058\u3066\u3044\u308b\u4eba\u306f\u3001\u8a66\u3057\u306bCloudflare Workers\u3092\u4f7f\u3063\u3066\u307f\u3066\u306f\u3044\u304b\u304c\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p>\u4e00\u3064\u6b8b\u5ff5\u306a\u3053\u3068\u3068\u3057\u3066\u306f\u3001Enterprise\u30d7\u30e9\u30f3\u4ee5\u5916\u3067\u306f\u4e00\u3064\u306e\u30c9\u30e1\u30a4\u30f3\u3067\u4e00\u3064\u306e\u30b9\u30af\u30ea\u30d7\u30c8\u3057\u304b\u52d5\u304b\u305b\u306a\u3044\u3053\u3068\u3067\u3059\u304b\u306d\u3002<br \/>\u306a\u306e\u3067\u8907\u6570\u306e\u51e6\u7406\u3092\u884c\u304a\u3046\u3068\u601d\u3063\u305f\u3089\u3001\u53d7\u3051\u53d6\u3063\u305f\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3059\u308b\u30b3\u30fc\u30c9\u304c\u5fc5\u8981\u306b\u306a\u3063\u3066\u304d\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/community.cloudflare.com\/t\/how-many-workers-scripts-can-i-have-per-domain\/13600\">How many Workers scripts can I have per domain? &#8211; Developers \/ Workers &#8211; Cloudflare Community<\/a><\/p>\n<p>\u305d\u3053\u3060\u3051\u6c17\u3092\u3064\u3051\u308c\u3070\u3001\u304a\u624b\u8efd\u4fa1\u683c(\u67085$)\u3067\u904a\u3079\u308b\u306e\u3067\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>\u203b\u3053\u306e\u8a18\u4e8b\u306f\u3001\u73fe\u5728\u306eworkers\u306e\u4ed5\u69d8\u306b\u304f\u3089\u3079\u3066&hellip;<\/p>\n","protected":false},"author":1,"featured_media":6386,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[77,6,55,62],"tags":[],"class_list":["post-6379","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cdn","category-javascript","category-leaflet-js","category-turf-js","has-post-thumbnail-archive"],"_links":{"self":[{"href":"https:\/\/gunmagisgeek.com\/blog\/wp-json\/wp\/v2\/posts\/6379","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gunmagisgeek.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gunmagisgeek.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gunmagisgeek.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gunmagisgeek.com\/blog\/wp-json\/wp\/v2\/comments?post=6379"}],"version-history":[{"count":4,"href":"https:\/\/gunmagisgeek.com\/blog\/wp-json\/wp\/v2\/posts\/6379\/revisions"}],"predecessor-version":[{"id":7140,"href":"https:\/\/gunmagisgeek.com\/blog\/wp-json\/wp\/v2\/posts\/6379\/revisions\/7140"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gunmagisgeek.com\/blog\/wp-json\/wp\/v2\/media\/6386"}],"wp:attachment":[{"href":"https:\/\/gunmagisgeek.com\/blog\/wp-json\/wp\/v2\/media?parent=6379"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gunmagisgeek.com\/blog\/wp-json\/wp\/v2\/categories?post=6379"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gunmagisgeek.com\/blog\/wp-json\/wp\/v2\/tags?post=6379"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}