{"id":34488,"date":"2022-12-13T14:27:12","date_gmt":"2022-11-26T22:43:19","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e8%ae%be%e8%ae%a1%e7%9a%84%e6%9c%80%e5%bc%ba%e6%95%b0%e6%8d%ae%e5%88%86%e6%9e%90%e8%bd%af%e4%bb%b6\/"},"modified":"2024-04-29T05:07:02","modified_gmt":"2024-04-28T21:07:02","slug":"%e6%88%91%e8%ae%be%e8%ae%a1%e7%9a%84%e6%9c%80%e5%bc%ba%e6%95%b0%e6%8d%ae%e5%88%86%e6%9e%90%e8%bd%af%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e8%ae%be%e8%ae%a1%e7%9a%84%e6%9c%80%e5%bc%ba%e6%95%b0%e6%8d%ae%e5%88%86%e6%9e%90%e8%bd%af%e4%bb%b6\/","title":{"rendered":"\u6211\u8bbe\u8ba1\u7684\u6700\u5f3a\u6570\u636e\u5206\u6790\u8f6f\u4ef6"},"content":{"rendered":"<p>\u9019\u662f\u70ba\u4e86Souzou\u516c\u53f8\u5167\u90e8\u5b78\u7fd2\u6703Go Friday\u7b2c60\u6b21\u6e96\u5099\u7684\u8cc7\u6599\u3002<br \/>\n\u96d6\u7136\u539f\u672cGo Friday\u4e0d\u9700\u8981\u505a\u8cc7\u6599\u6e96\u5099\u4e4b\u985e\u7684\u4e8b\u60c5\uff0c\u4f46\u6211\u89ba\u5f97\u53ea\u4f9d\u9760\u76f4\u89ba\u53bb\u8aaa&#8221;\u9019\u6a23\u5920\u4e86&#8221;\u53ef\u80fd\u7121\u6cd5\u7372\u5f97\u6b63\u78ba\u7684\u5370\u8c61\uff0c\u6240\u4ee5\u6211\u505a\u4e86\u9019\u4efd\u8cc7\u6599\u3002<br \/>\n\u9019\u662f\u95dc\u65bcgo.mercari.io\/datastore\u7684\u8a71\u984c\u3002<\/p>\n<h2>\u4eca\u5929\u8981\u8bf4\u7684\u4e8b\u60c5 shu\u014d de sh\u00ec<\/h2>\n<blockquote><p>\u4e3a\u4ec0\u4e48\u662f\u6700\u5f3a\u7684\uff1f\u5982\u4f55\u6210\u4e3a\u6700\u5f3a\u7684\uff1f\u672a\u6765\u7684\u6700\u5f3a\u8005\u3002<\/p><\/blockquote>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u307b\u3057\u3044\u7406\u7531<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u89e3\u6c7a\u65b9\u6cd5<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5b9f\u88c5\u65b9\u6cd5(\u3081\u3093\u3069\u3044\u306e\u3067Go Friday\u4e2d\u3067\u53e3\u982d\u3067\u8aac\u660e)<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u8a2d\u8a08\u4e0a\u306e\u5224\u65ad\u3068\u79fb\u884c\u306e\u6ce8\u610f\u70b9<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u3053\u308c\u304b\u3089\u5b9f\u88c5\u3059\u308b\u6a5f\u80fd<\/ul>\n<h2>Datastore \u662f\u4ec0\u4e48\uff1f<\/h2>\n<p>\u5982\u679c\u4f60\u662fappengine\u7684\u7528\u6237\uff0c\u4f60\u80af\u5b9a\u4f1a\u7528\u5230Google\u7684\u4e1c\u897f\u3002<\/p>\n<h2>\u6211\u60f3\u8981\u4e00\u67b6\u5c0f\u53f7\u7684\u539f\u56e0\u3002<\/h2>\n<p>\u6211\u9762\u4e34\u7740\u5404\u79cd\u56f0\u96be\u548c\u70e6\u4eba\u7684\u4e8b\u60c5\uff0c\u6211\u60f3\u8981\u89e3\u51b3\u5b83\u4eec\u3002<br \/>\n\u2192\u597d\u7684\uff01\u90a3\u5c31\u53ea\u80fd\u81ea\u5df1\u5236\u4f5c\u4e00\u4e2arapper\u4e86\uff01<\/p>\n<h2>\u4e0d\u5f00\u5fc3\u7684\u70b91<\/h2>\n<pre class=\"post-pre\"><code><span class=\"k\">type<\/span> <span class=\"n\">PropertyLoadSaver<\/span> <span class=\"k\">interface<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">Load<\/span><span class=\"p\">([]<\/span><span class=\"n\">Property<\/span><span class=\"p\">)<\/span> <span class=\"kt\">error<\/span>\r\n    <span class=\"n\">Save<\/span><span class=\"p\">()<\/span> <span class=\"p\">([]<\/span><span class=\"n\">Property<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h3>\u5728Load\u548cSave\u4e2d\u65e0\u6cd5\u83b7\u53d6\u4e0a\u4e0b\u6587\u3002<\/h3>\n<ol>\u65e0\u6cd5\u8bb0\u5f55\u65e5\u5fd7\uff01\u65e0\u6cd5\u521b\u5efahttp.Client\uff01\u65e0\u6cd5\u4f7f\u7528datastore.Get\u7b49\u64cd\u4f5c\uff01<\/ol>\n<h3>\u89e3\u51b3\u75db\u70b91<\/h3>\n<pre class=\"post-pre\"><code><span class=\"k\">type<\/span> <span class=\"n\">PropertyLoadSaver<\/span> <span class=\"k\">interface<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">Load<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">,<\/span> <span class=\"n\">ps<\/span> <span class=\"p\">[]<\/span><span class=\"n\">Property<\/span><span class=\"p\">)<\/span> <span class=\"kt\">error<\/span>\r\n    <span class=\"n\">Save<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">)<\/span> <span class=\"p\">([]<\/span><span class=\"n\">Property<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>datastore.SaveStruct \u548c datastore.LoadStruct \u4e5f\u5df2\u7ecf\u91cd\u65b0\u5b9e\u73b0\u3002<\/p>\n<h2>\u75db\u70b92<\/h2>\n<pre class=\"post-pre\"><code><span class=\"c\">\/\/ \u72ec\u81ea\u306e\u578b\u306fPut\u3067\u304d\u306a\u3044\u2026\uff01<\/span>\r\n<span class=\"k\">type<\/span> <span class=\"n\">Data<\/span> <span class=\"k\">struct<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"n\">ChildID<\/span> <span class=\"n\">ChildID<\/span>\r\n  <span class=\"n\">CreatedAt<\/span> <span class=\"n\">UnixTime<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h3>\u65e0\u6cd5\u5728Put\u4e2d\u653e\u7f6e\u5177\u6709\u72ec\u7279\u7c7b\u578b\u5143\u7d20\u7684Struct\u3002<\/h3>\n<p>\u4e3a\u4e86\u5c06\u6570\u636e\u8f93\u51fa\u4e3aJSON\uff0c\u4e0d\u5f97\u4e0d\u5c06\u5176\u5185\u5bb9\u8f6c\u79fb\u5230\u53e6\u4e00\u4e2a\u7ed3\u6784\u4e2d\u8fdb\u884c\u5904\u7406\u2192 \u5f88\u70e6<br \/>\n\u5982\u679c\u7ed3\u6784\u4f53\u7684\u5143\u7d20\u589e\u52a0\uff0c\u8fd8\u9700\u8981\u4fee\u6539\u8f6c\u79fb\u4ee3\u7801\u2192 \u4f1a\u51fabug<br \/>\n\u6211\u60f3\u968f\u4fbf\u653e\u5165\u559c\u6b22\u7684\u7c7b\u578b\u5e76\u5b9e\u73b0json.Marshaler\u4e4b\u7c7b\u7684\u4e1c\u897f\uff01\u2192 \u771f\u662f\u8fd9\u6837\u7684<\/p>\n<h3>\u89e3\u51b3\u75db\u82e6\u70b92<\/h3>\n<pre class=\"post-pre\"><code><span class=\"k\">type<\/span> <span class=\"n\">PropertyTranslator<\/span> <span class=\"k\">interface<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">ToPropertyValue<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"k\">interface<\/span><span class=\"p\">{},<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"n\">FromPropertyValue<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">,<\/span> <span class=\"n\">p<\/span> <span class=\"n\">Property<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"n\">dst<\/span> <span class=\"k\">interface<\/span><span class=\"p\">{},<\/span> <span class=\"n\">err<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5982\u679c\u60a8\u5b9e\u73b0\u4e86PropertyTranslator\uff0c\u90a3\u4e48\u60a8\u53ef\u4ee5\u5728Save\uff06Load\u65f6\u7f16\u5199\u4e0eDatastore\u6709\u6548\u7c7b\u578b\u4e4b\u95f4\u7684\u6620\u5c04\u5904\u7406\u3002\u4f8b\u5982\uff0c\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u4f7f\u7528JSON\uff0c\u53ef\u4ee5\u5c06\u5176\u8f6c\u6362\u4e3a\u6570\u5b57\uff0c\u800c\u5728Datastore\u4e2d\uff0c\u53ef\u4ee5\u5c06\u5176\u8f6c\u6362\u4e3a\u952e\uff0c\u8fd9\u6837\u5728Datastore\u67e5\u770b\u5668\u548c\u524d\u7aef\u5b9e\u73b0\u4e2d\u90fd\u66f4\u6613\u4e8e\u7406\u89e3\u548c\u5904\u7406\u3002\u975e\u5e38\u4e0d\u9519\uff01 \uff08\u5bfc\u5165\u5230BigQuery\u53ef\u80fd\u4f1a\u5f88\u56f0\u96be\u7684\u8bf4\u6cd5\uff09<\/p>\n<p>\u987a\u4fbf\u63d0\u4e00\u4e0b\uff0c\u6839\u636e\u7528\u6237\u6743\u9650\u63a7\u5236\u8f93\u51fa\u9879\u76ee\u662f\u5f88\u65b9\u4fbf\u7684\uff0c\u53ef\u4ee5\u4f7f\u7528jwg\u3002<\/p>\n<h2>\u56f0\u96be\u70b93<\/h2>\n<p>\u6570\u636e\u5b58\u50a8\u9519\u8bef\u5b57\u6bb5\u4e0d\u5339\u914d\u5f88\u70e6\u4eba\uff01\u65e2\u7136Go\u7684\u7ed3\u6784\u4f53\u5145\u5f53\u4e86\u6a21\u5f0f\uff0c\u90a3\u4e48\u5e0c\u671b\u5b83\u80fd\u9ed8\u9ed8\u5730\u5ffd\u7565\u6389\u7f3a\u5c11\u7684\u5b57\u6bb5\u3002<br \/>\n\u5199\u660e\u786e\u5ffd\u7565\u7684\u4ee3\u7801\u592a\u9ebb\u70e6\u4e86\uff01<\/p>\n<h3>\u89e3\u51b3\u75db\u70b93<\/h3>\n<p>\u5b9e\u73b0 datastore.SuppressErrFieldMismatch\u3002<br \/>\n\u9ed8\u8ba4\u4e3atrue\u3002\u8bbe\u7f6e\u4e3afalse\u5c06\u6062\u590d\u65e7\u6709\u7684\u884c\u4e3a\u3002<\/p>\n<h2>\u75db\u70b94<\/h2>\n<p>\u5199\u5173\u8054\u5b9e\u4f53\u7684\u64cd\u4f5c\u5e76\u4e14\u5199\u5f97\u9ad8\u6548\u5bf9\u6211\u6765\u8bf4\u5f88\u96be\u53d7&#8230;<\/p>\n<h3>\u5e38\u89c1\u7684\u8fa3\u5473\u5b9e\u4f8b<\/h3>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u663e\u793aCircle\u7684\u5217\u8868\u5427\uff01<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>Circle\u6709\u591a\u4e2a\uff080\u4e2a\u6216\u4ee5\u4e0a\uff09Product\u3002<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>Circle\u4e5f\u6709\u8bb0\u5f55\u53c2\u5c55\u54ea\u4e00\u4e2aEvent\u3002<\/ol>\n<p>\u611a\u76f4\u30b3\u30fc\u30c9\u306eRPC\u306e\u56de\u6570=Circle\u30ea\u30b9\u30c8\u53d6\u5f97+Circle\u306e\u6570\u00d7(Event1\u56de+Product\u00d7\u6570)<\/p>\n<h3>\u8bf7\u6c42\u7684\u6b21\u6570\uff1f<\/h3>\n<p>\u6570\u636e\u5b58\u50a8(Datastore)\u5728App Engine\u7684\u5b9e\u4f8b\u548c\u5176\u4ed6\u7684\u673a\u5668\u4e0a\u8fd0\u884c\uff0c\u56e0\u6b64\u9700\u8981\u8fdb\u884c\u8fdc\u7a0b\u8fc7\u7a0b\u8c03\u7528\uff08RPC\uff09\u3002<br \/>\n\u5982\u679c\u5206\u6563\u5730\u83b7\u53d6\u6570\u636e\uff0c\u5c06\u4f1a\u82b1\u8d39\u66f4\u591a\u65f6\u95f4\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\u6280\u8853\u66f8\u5178\u306eMemcache\u3092\u98db\u3070\u3057\u305f\u5f8c\u306e\u30c8\u30ec\u30fc\u30b9\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d1d6d37434c4406c1340a\/34-0.png\" alt=\"\u6280\u8853\u66f8\u5178\u306eMemcache\u3092\u98db\u3070\u3057\u305f\u5f8c\u306e\u30c8\u30ec\u30fc\u30b9\" \/><\/div>\n<p>\u5bf9\u4e8e\u8fd9\u4e2a\u4f8b\u5b50\u6765\u8bf4\uff0c\u5982\u679c\u6ca1\u6709\u4f7f\u7528Memcache\uff0c\u5904\u7406\u65f6\u95f4\u5927\u7ea6\u9700\u89811100\u6beb\u79d2\u3002\u5373\u4f7f\u4f7f\u7528\u4e86Memcache\uff0c\u5904\u7406\u65f6\u95f4\u4e5f\u4f1a\u9700\u8981\u5927\u7ea6450\u6beb\u79d2\u3002<br \/>\n\u5982\u679cRPC\u7684\u6b21\u6570\u51cf\u5c11\uff0c\u53ef\u4ee5\u660e\u663e\u6539\u5584\u5904\u7406\u65f6\u95f4\u3002<\/p>\n<h3>\u624b\u52a8\u53bb\u6539\u5584<\/h3>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u83b7\u53d6Circle\u5217\u8868<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u904d\u5386\u6240\u6709Circle\u5e76\u521b\u5efa\u60f3\u8981\u83b7\u53d6\u7684Product\u5217\u8868<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u904d\u5386\u6240\u6709Circle\u5e76\u521b\u5efa\u60f3\u8981\u83b7\u53d6\u7684Event\u5217\u8868<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u4eceDatastore\u4f7f\u7528GetMulti\u8fdb\u884c\u83b7\u53d6<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\u5c06\u83b7\u53d6\u5230\u7684Product\u548cEvent\u5206\u53d1\u7ed9Circle\u7684\u6bcf\u4e2a\u5143\u7d20&#8230;\u771f\u7684\u5f88\u70e6\u4eba&#8230;<\/ol>\n<p>\u8fd9\u6837\u4e00\u6765\uff0cRPC\u7684\u6b21\u6570\u5c31\u4f1a\u53d8\u6210\u4e24\u6b21\u3002<br \/>\n\u867d\u7136\u5728\u901f\u5ea6\u65b9\u9762\u6709\u6240\u6539\u5584\uff0c\u4f46\u7f16\u5199\u4ee3\u7801\u548c\u53ef\u8bfb\u6027\u5c06\u4f1a\u53d8\u5f97\u975e\u5e38\u5dee\u3002<\/p>\n<h3>\u89e3\u51b3\u56f0\u96be\u70b94<\/h3>\n<p>\u6211\u521b\u5efa\u4e86datastore.Client#Batch()\u3002<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>Circle\u306e\u30ea\u30b9\u30c8\u3092\u53d6\u5f97\u3059\u308b<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u5168Circle\u3092\u8210\u3081\u3066Product\u3092\u500b\u5225\u306bGet\u3059\u308b(\u9045\u5ef6\u8a55\u4fa1)<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u5168Circle\u3092\u8210\u3081\u3066Event\u3092\u500b\u5225\u306bGet\u3059\u308b(\u9045\u5ef6\u8a55\u4fa1)<\/ol>\n<\/li>\n<\/ol>\n<p>*Batch#Exec() \u30c9\u30f3\uff01<\/p>\n<p>\u7ed3\u675f\uff0c\u8fd9\u4e5f\u662fRPC\u7684\u4e24\u4e2a\u5b9e\u73b0\u793a\u4f8b\u3002<\/p>\n<h2>\u75db\u70b95<\/h2>\n<p>AppEngine Datastore\u3068Cloud Datastore\u306eAPI\u9055\u3046\u2026<br \/>\nCloud Datastore\u306b\u7d71\u4e00\u3059\u308b\u3068appengine\u3067\u306fSocket API\u7d4c\u7531\u306b\u306a\u308b\u306e\u3067\u9045\u3044\u3057\u2026<\/p>\n<h3>\u89e3\u51b3\u75db\u70b95<\/h3>\n<p>\u5728 go.mercari.io\/datastore \u4e2d\u653e\u7f6e\u4e86\u4e00\u4e2a\u5171\u7528\u7684\u63a5\u53e3\uff0c\u5b9e\u73b0\u5206\u522b\u662f go.mercari.op\/datastore\/aedatastore \u548c go.mercari.op\/datastore\/clouddatastore\u3002<br \/>\n\u5c3d\u7ba1\u751f\u6210 datastore.Client \u7684\u65b9\u6cd5\u4e0d\u540c\uff0c\u4f46\u9664\u6b64\u4e4b\u5916\u7684 API \u76f8\u540c\uff0c\u56e0\u6b64\u53ef\u4ee5\u5728\u4efb\u4f55\u65f6\u95f4\u70b9\u8fdb\u884c\u66ff\u6362\u3002<br \/>\n\u5bf9\u4e8e AppEngine \u548c GKE \u7684\u8fc1\u79fb\uff0c\u53ef\u80fd\u4f1a\u53d8\u5f97\u66f4\u52a0\u987a\u5229\u3002<br \/>\n\u540c\u65f6\u6539\u5584\u4e86\u5728 AppEngine \u4e0a\u4f7f\u7528 Cloud Datastore \u64cd\u4f5c\u5176\u4ed6\u9879\u76ee\u7684 Datastore \u65f6\u7684\u56f0\u6270\u3002<\/p>\n<h2>\u5728\u8bbe\u8ba1\u4e0a\u7684\u51b3\u7b56<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u3084\u308b\u3053\u3068<\/ul>\n<\/li>\n<\/ul>\n<p>Datastore\u306eAPI\u3092\u4fbf\u5229\u3067\u3055\u3044\u304d\u3087\u3046\u306b\u3059\u308b<\/p>\n<p>\u3084\u3089\u306a\u3044\u3053\u3068<\/p>\n<p>Datastore\u306e\u30c6\u30b9\u30c8\u3084\u74b0\u5883\u3092\u6539\u5584\u3059\u308b<br \/>\n(\u3067\u3082Cloud Datastore Emulator\u3067\u30c6\u30b9\u30c8\u6d41\u3059\u3068\u65e9\u3044\u2026)<\/p>\n<p>AEDatastore\u3068CloudDatastore\u306eAPI\u304c\u7570\u306a\u308b<\/p>\n<p>Cloud Datastore\u5074\u306eAPI\u306b\u5bc4\u305b\u308b \u3088\u308a\u30e1\u30f3\u30c6\u3055\u308c\u3066\u3066\u5b9f\u88c5\u3082\u30de\u30c8\u30e2\u306a\u305f\u3081<br \/>\n\u306a\u306e\u3067 KeyLoader \u3068\u304b datastore:&#8221;,flatten&#8221; \u3082\u3042\u308b\u3088<\/p>\n<p>goon\u4f7f\u3063\u3066\u308b\u3093\u3060\u3051\u3069\u79fb\u884c\u306f\u2026\uff1f<\/p>\n<p>boom\u4f5c\u308a\u307e\u3057\u305f<br \/>\nMemcache\u3092\u4f7f\u3063\u305f\u308a\u3059\u308b\u30ec\u30a4\u30e4\u306f\u4eca\u5f8cDatastore\u30e9\u30c3\u30d1\u5074\u306b\u5b9f\u88c5\u4e88\u5b9a<\/p>\n<p>Go\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306f\uff1f<\/p>\n<p>context \u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u4f7f\u3063\u3066\u308b\u306e\u3067go1.8\u304c\u5fc5\u8981\u3067\u3059<\/p>\n<p>go1.6\u306a\u3089 gofmt -w -r &#8216;&#8221;context&#8221; -&gt; &#8220;golang.org\/x\/net\/context&#8221;&#8216; . \u7684\u306a\u5bfe\u5fdc\u3067<\/p>\n<p>semver\u3067\u3084\u308a\u307e\u3059<\/p>\n<p>dep\u306fsemver\u5bfe\u5fdc\uff01<\/p>\n<h2>\u8bbe\u8ba1\u4e0a\u7684\u5efa\u8bae de<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u81ea\u5206\u306eProject\u7528\u306e FromContext \u3092\u81ea\u5206\u3067\u5b9f\u88c5\u3057\u3066\u3001\u305d\u308c\u7d4c\u7531\u3067 datastore.Client \u3092\u53d6\u5f97\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u304a\u304f<\/ul>\n<\/li>\n<\/ul>\n<p>\u4eca\u5f8c\u30ad\u30e3\u30c3\u30b7\u30e5\u7528\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u63d0\u4f9b\u306f datastore.FromContext(ctx, options.WithAEMemcache()) \u7684API\u306b\u3059\u308b\u3068\u601d\u3046\u306e\u3067\u5168\u3066\u306e\u7b87\u6240\u306b\u305d\u3046\u3044\u3046\u5909\u66f4\u5f8c\u304b\u3089\u3044\u308c\u308b\u306e\u5927\u5909\u306a\u306e\u3067<br \/>\nCloud Datastore\u306e\u5834\u5408\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u540d\u3092\u6307\u5b9a\u3057\u305f\u308a\u3059\u308b\u5fc5\u8981\u306a\u3069\u304c\u3042\u308a\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u305d\u308c\u3092\u884c\u3046\u5834\u6240\u304c\u6563\u3089\u3070\u308b\u306e\u306f\u307e\u305a\u3044<\/p>\n<p>Batch\u306f\u500b\u5225\u306b\u4f5c\u308b\u3088\u308a1\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u9593\u306f\u4f7f\u3044\u307e\u308f\u3057\u305f\u307b\u3046\u304c\u3088\u3044<\/p>\n<p>*Batch.Exec() \u4e2d\u306b\u8ffd\u52a0\u306e\u4e88\u7d04\u304c\u3042\u3063\u305f\u5834\u5408\u3001\u305d\u308c\u304c\u306a\u304f\u306a\u308b\u307e\u3067\u518d\u5e30\u7684\u306bExec\u3057\u7d9a\u3051\u308b\u5b9f\u88c5\u3067\u3059<\/p>\n<h2>\u8f6c\u578b\u7684\u6ce8\u610f\u4e8b\u9879<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Cloud Datastore\u306b\u6e96\u62e0\u3057\u3066\u3044\u308b\u306e\u3067AEDatastore\u3068\u306e\u9055\u3044\u306b\u6ce8\u610f<\/ul>\n<\/li>\n<\/ul>\n<p>Entity\u306efield\u8981\u7d20\u306bstruct\u3068\u304b\u3092\u4f7f\u3063\u3066\u3044\u308b\u5834\u5408\u3001 datastore:&#8221;,flatten&#8221; \u304c\u5fc5\u8981<br \/>\nTransaction\u3067Put\u3057\u305f\u6642Key\u3067\u306f\u306a\u304fPendingKey\u304c\u8fd4\u3063\u3066\u304f\u308b<\/p>\n<p>Commit\u3059\u308b\u307e\u3067Key\u304c\u308f\u304b\u3089\u306a\u3044\u2026\uff01<br \/>\nKey\u306eID\u304c\u9014\u4e2d\u306e\u51e6\u7406\u3067\u5fc5\u8981\u306a\u3089AllocateIDs\u306b\u79fb\u884c\u3059\u308b\u5fc5\u8981\u3042\u308a<\/p>\n<p>Cloud Datastore\u306eClient\u3068AEDatastore\u306eClient\u306e\u4f5c\u308a\u65b9\u306b\u5dee\u304c\u3042\u308b<\/p>\n<p>AEDatastore\u306f\u30ea\u30af\u30a8\u30b9\u30c8\u9593\u306eClient\u5171\u6709\u306f\u3067\u304d\u306a\u3044<br \/>\nCloud Datastore\u306fClient\u4f5c\u308b\u305f\u3073\u306b\u65b0\u898f\u306bgRPC\u306e\u63a5\u7d9a\u3092\u4f5c\u308b\u2026\uff1f<\/p>\n<p>\u3042\u307e\u308a\u8a73\u3057\u304f\u306f\u8ffd\u3063\u3066\u306a\u3044\u3051\u3069<\/p>\n<p>\u5c06\u6765\u7684\u306bAEDatastore\u2192Cloud Datastore\u3078\u306e\u79fb\u884c\u304c\u3042\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u306a\u3089\u521d\u671f\u5316\u51e6\u7406\u306f\u3061\u3083\u3093\u3068\u3084\u3063\u305f\u307b\u3046\u304c\u3088\u3044<\/p>\n<h2>\u63a5\u4e0b\u6765\u7684\u8c08\u8bdd<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30ad\u30e3\u30c3\u30b7\u30e5\u30ec\u30a4\u30e4\u30fc\u3092\u5165\u308c\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>\u30d7\u30e9\u30b0\u30a4\u30f3\u5f62\u5f0f<br \/>\nappengine\u306eMemcache\u3092\u4f7f\u3046\u30d7\u30e9\u30b0\u30a4\u30f3<br \/>\n\u540c\u4e00Entity\u306eGet\u304c\u8907\u6570\u3042\u3063\u305f\u5834\u54081\u3064\u306b\u5727\u7e2e\u3059\u308b\u30d7\u30e9\u30b0\u30a4\u30f3<br \/>\n\u30de\u30b7\u30f3\u30ed\u30fc\u30ab\u30eb\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u4f7f\u3046\u30d7\u30e9\u30b0\u30a4\u30f3<br \/>\nQuery\u3092KeysOnly\u306b\u5909\u63db\u3057\u3066Entity\u306f\u500b\u5225\u306bGet\u3059\u308b\u30d7\u30e9\u30b0\u30a4\u30f3<\/p>\n<p>small op + Memcache = \u5b89\u3044\uff01<\/p>\n<p>\u305d\u306e\u4ed6\u597d\u304d\u306a\u306e\u3042\u3063\u305f\u3089\u81ea\u5206\u3067\u66f8\u3044\u3066<\/p>\n<p>\u81ea\u52d5\u79fb\u884c\u30c4\u30fc\u30eb\u4f5c\u308b\u2026\uff1f<\/p>\n<p>astutil.Apply \u3057\u3085\u3054\u3044<\/p>\n<p>\u3053\u306e\u5f8c @tenntenn \u3055\u3093\u304c\uff01<\/p>\n<p>RunInTransaction\u3068\u304b\u306e\u66f8\u304d\u63db\u3048\u304c\u9ad8\u96e3\u6613\u5ea6\u2026<\/p>\n<p>1\u56de\u3042\u305f\u308a\u306b\u66f8\u304d\u63db\u3048\u308b\u30b3\u30fc\u30c9\u30d6\u30ed\u30c3\u30af\u306e\u7bc4\u56f2\u304c\u5e83\u3044<\/p>\n<p>= \u898b\u3066\u66f8\u304d\u63db\u3048\u306a\u3044\u3068\u3044\u3051\u306a\u3044AST\u306e\u30b5\u30a4\u30ba\u304c\u30c7\u30ab\u3044<\/p>\n<p>\u2191\u304c\u3060\u3044\u305f\u3044\u3067\u304d\u305f\u3089v1.0.0\u306b\u3059\u308b<\/p>\n<h2>\u7f13\u5b58\u5c42\u7684\u8ba8\u8bba<\/h2>\n<pre class=\"post-pre\"><code><span class=\"k\">type<\/span> <span class=\"n\">CacheOperation<\/span> <span class=\"kt\">int<\/span>\r\n<span class=\"k\">const<\/span> <span class=\"p\">(<\/span>\r\n  <span class=\"n\">InvalidCacheOperation<\/span> <span class=\"n\">CacheOperation<\/span> <span class=\"o\">=<\/span> <span class=\"no\">iota<\/span>\r\n  <span class=\"n\">PutCacheOperation<\/span>\r\n  <span class=\"n\">GetCacheOperation<\/span>\r\n  <span class=\"n\">DeleteCacheOperation<\/span>\r\n<span class=\"p\">)<\/span>\r\n<span class=\"k\">type<\/span> <span class=\"n\">CacheFunc<\/span> <span class=\"k\">func<\/span><span class=\"p\">(<\/span>\r\n    <span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">op<\/span> <span class=\"n\">CacheOperation<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">keys<\/span> <span class=\"p\">[]<\/span><span class=\"n\">datastore<\/span><span class=\"o\">.<\/span><span class=\"n\">Key<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">next<\/span> <span class=\"n\">CacheFunc<\/span>\r\n<span class=\"p\">)<\/span> <span class=\"p\">([]<\/span><span class=\"n\">datastore<\/span><span class=\"o\">.<\/span><span class=\"n\">PropertyList<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<p>\u5c06\u4e0d\u80fd\u81ea\u884c\u5904\u7406\u7684key\u4f20\u9012\u7ed9next\uff0c\u5e76\u5c06next\u8fd4\u56de\u7684propertyList\u7f13\u5b58\u7ed9\u81ea\u5df1\u7684\u4e0b\u4e00\u6b21\u4f7f\u7528\u3002<br \/>\n\u8fd4\u56de\u4e00\u4e2a\u4e0e\u4f20\u9012\u7684keys\u76f8\u540c\u957f\u5ea6\u7684[]datastore.PropertyList\uff0c\u4fdd\u6301\u4f20\u9012\u65f6\u7684\u987a\u5e8f\u5373\u53ef\u3002<br \/>\n\u5728Put\u3001Get\u548cDelete\u4e4b\u95f4\u63d2\u5165\u6b64\u5904\u7406\uff0c\u5e76\u4e14\u5176\u4ed6\u4efb\u4f55\u4e8b\u60c5\u90fd\u53ef\u4ee5\u968f\u610f\u5904\u7406\uff0c\u8fd9\u5c31\u662f\u6211\u7684\u60f3\u6cd5\uff08\u5728\u5b9e\u65bd\u65f6\u53ef\u80fd\u4f1a\u6709\u53d8\u5316\uff09\u3002<\/p>\n<h2>\u9700\u8981\u5efa\u8bae\u6216\u8005\u62a5\u544a\u95ee\u9898<\/h2>\n<p>GitHub\u306eIssue<\/p>\n<p>\u82f1\u8a9e\u3067\u983c\u3093\u307e\u3059(Google Translate\u3067\u3044\u3044\u3088\uff01)<\/p>\n<p>GCPUG\u306eSlack\u306e#g-cloud-datastore_ja<\/p>\n<p>\u65e5\u672c\u8a9e\u3067\u304a\uff4b<\/p>\n<p>\u793e\u5185Slack\u306evvakame\u500b\u4eba\u30c1\u30e3\u30f3\u30cd\u30eb<\/p>\n<p>\u898b\u305f\u3044\u4eba\u2192\u5165\u793e\u3057\u3066\u304f\u3060\u3055\u3044<\/p>\n<h2>\u8fd9\u4e2a\u53e5\u5b50\u7684\u7ed3\u6784\u592a\u7cdf\u7cd5\u4e86\uff01<\/h2>\n<p>\u8d77\u521d\u6211\u662f\u5728\u5e7b\u706f\u7247\u6a21\u5f0f\u4e0b\u5236\u4f5c\u7684\uff0c\u4f46\u662f\u8c03\u6574\u5185\u5bb9\u4ee5\u9002\u5e94\u4e00\u4e2a\u5e7b\u706f\u7247\u5b9e\u5728\u592a\u9ebb\u70e6\u4e86\uff0c\u6240\u4ee5\u6211\u5c31\u653e\u5f03\u4e86\uff0c\u8bf7\u539f\u8c05\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9019\u662f\u70ba\u4e86Souzou\u516c\u53f8\u5167\u90e8\u5b78\u7fd2\u6703Go Friday\u7b2c60\u6b21\u6e96\u5099\u7684\u8cc7\u6599\u3002 \u96d6\u7136\u539f\u672cGo Friday\u4e0d\u9700\u8981\u505a\u8cc7 [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-34488","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u6211\u8bbe\u8ba1\u7684\u6700\u5f3a\u6570\u636e\u5206\u6790\u8f6f\u4ef6 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u6211\u8bbe\u8ba1\u7684\u6700\u5f3a\u6570\u636e\u5206\u6790\u8f6f\u4ef6\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" 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