{"id":1223,"date":"2019-12-15T20:58:37","date_gmt":"2019-12-15T11:58:37","guid":{"rendered":"https:\/\/took.jp\/?p=1223"},"modified":"2020-06-23T18:46:25","modified_gmt":"2020-06-23T09:46:25","slug":"post-1223","status":"publish","type":"post","link":"https:\/\/took.jp\/tech-blog\/post-1223\/","title":{"rendered":"aws lambda DynamoDB\u304b\u3089\u6700\u65b0\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u6307\u5b9a\u3057\u305f\u4ef6\u6570\u53d6\u5f97\u3059\u308b"},"content":{"rendered":"

\u307e\u305a\u3001lambda\u95a2\u6570\u3067dynamoDB\u5185\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u53d6\u5f97\u3059\u308b\u5834\u5408\u306b\u306f\u3001\u53d6\u5f97\u3055\u308c\u308b\u9806\u756a\u304c\u53d6\u5f97\u3054\u3068\u306b\u7570\u306a\u3063\u3066\u3057\u307e\u3046\u305f\u3081\u3001DynamoDB\u3067\u30bd\u30fc\u30c8\u30ad\u30fc\u3092\u6c7a\u3081\u3001\u9806\u756a\u304c\u56fa\u5b9a\u306b\u3055\u308c\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u3082\u3057\u3001\u30bd\u30fc\u30c8\u30ad\u30fc\u3092\u8a2d\u5b9a\u3067\u304d\u3066\u3044\u306a\u3044\u65b9\u306f\u3001\u3053\u3061\u3089\u306e\u8a18\u4e8b<\/a>\u3092\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

 <\/p>\n

\u6700\u65b0\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f\u3001\u30bd\u30fc\u30c8\u30ad\u30fc\u3092\u964d\u9806\u306b\u53d6\u5f97\u3057\u307e\u3059\u3002<\/p>\n

\u305d\u3053\u304b\u3089\u3001\u53d6\u5f97\u3059\u308b\u4ef6\u6570\u3092\u6307\u5b9a\u3059\u308c\u3070\u3001\u300c\u6700\u65b0\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u6307\u5b9a\u3057\u305f\u4ef6\u6570\u53d6\u5f97\u300d\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n

\u3067\u306f\u3001\u30b5\u30f3\u30d7\u30eb\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n

 <\/p>\n

const AWS = require('aws-sdk');\r\nconst dynamo = new AWS.DynamoDB.DocumentClient();\r\n\r\nexports.handler = (event, context, callback) => {\r\n  var table = \u30c6\u30fc\u30d6\u30eb\u540d;\r\n  var limit  = \u53d6\u5f97\u30ec\u30b3\u30fc\u30c9\u6570;\r\n  const params = {\r\n    TableName: table,\r\n    Limit : limit, \r\n    ScanIndexForward:false,\r\n  };\r\n  dynamo.query(params, function(err, data) {\r\n    data.Items.sort(function(a, b) {\r\n      if (a.id > b.id) {\r\n          return 1;\r\n      } else {\r\n          return -1;\r\n      }\r\n    })\r\n    if (err) {\r\n      context.fail(err); \/\/ \u30a8\u30e9\u30fc\u6642\r\n    } else {\r\n      context.succeed(data); \/\/ \u6b63\u5e38\u6642\r\n    }\r\n  });\r\n};<\/code><\/pre>\n
 <\/p>\n
params\u5909\u6570\u306b<\/p>\n
Limit\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u53d6\u5f97\u6570\u306e\u4e0a\u9650\u3092\u6c7a\u3081\u307e\u3059\u3002<\/p>\n
ScanIndexForward\u306bfalse\u3092\u6307\u5b9a\u3057\u3001\u964d\u9806\u3067\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
 <\/p>\n
\u95a2\u9023\u66f8\u7c4d<\/h2>\n
\n\t
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\n\t\t\t\t\t\t\t<\/a>\t\t\t\t\t<\/div>\n\t\t
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\n\t\t\t\t\t\t\t\t\t\u307f\u3093\u306a\u306eAWS\u3000\u301cAWS\u306e\u57fa\u672c\u3092\u6700\u65b0\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3067\u307e\u308b\u3054\u3068\u7406\u89e3\uff01\u3010\u96fb\u5b50\u66f8\u7c4d\u3011[ \u83ca\u6c60 \u4fee\u6cbb ]<\/a>\t\t\t\t\t\t\t<\/div>\n\t\t\t
\n\t\t\t\t\t\t\t
created by Rinker<\/a><\/div>\n\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\u00a52,618<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t(2026\/04\/11 17:02:04\u6642\u70b9 \u697d\u5929\u5e02\u5834\u8abf\u3079-<\/span>\u8a73\u7d30)<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t