{"id":1819,"date":"2021-08-27T10:07:52","date_gmt":"2021-08-27T01:07:52","guid":{"rendered":"https:\/\/dennie.tokyo\/it\/?p=1819"},"modified":"2022-04-03T15:27:09","modified_gmt":"2022-04-03T06:27:09","slug":"%e3%80%90dynamodb%e3%80%91aws-sdk-%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%97%e3%81%9f%e8%a4%87%e6%95%b0%e9%a0%85%e7%9b%ae%e3%81%ae%e5%8f%96%e5%be%97","status":"publish","type":"post","link":"https:\/\/dennie.tokyo\/it\/?p=1819","title":{"rendered":"\u3010DynamoDB\u3011AWS SDK \u3092\u4f7f\u7528\u3057\u305f\u8907\u6570\u9805\u76ee\u306e\u53d6\u5f97"},"content":{"rendered":"\n

\u4eca\u56de\u306f\u9805\u76ee\u306e\u53d6\u5f97\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n\n\n\n\n\n

getItem \u306e\u3088\u3046\u306a\u5358\u4e00\u9805\u76ee\u306e\u53d6\u5f97\u3067\u306f\u306a\u304f\u3001\u8907\u6570\u306e\u9805\u76ee\u3092\u53d6\u5f97\u3092\u3057\u307e\u3059\u3002
\u5358\u4e00\u9805\u76ee\u306e\u53d6\u5f97\u306b\u3064\u3044\u3066\u306f\u4ee5\u4e0b\u3092\u53c2\u7167\u3057\u3066\u4e0b\u3055\u3044\u3002<\/p>\n\n\n\n

\u53c2\u7167<\/span>\n

\u3010DynamoDB\u3011AWS SDK \u3092\u4f7f\u7528\u3057\u305f\u5358\u4e00\u9805\u76ee\u306e\u53d6\u5f97<\/a><\/p>\n<\/div>\n\n\n\n

\u30af\u30a8\u30ea\u30fc<\/h1>\n\n\n\n

\u8907\u6570\u9805\u76ee\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f query \u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002
query \u306f\u30c6\u30fc\u30d6\u30eb\u306e\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u30ad\u30fc\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u30bd\u30fc\u30c8\u30ad\u30fc \u306e\u307f\u306e\u6307\u5b9a\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u30bd\u30fc\u30c8\u30ad\u30fc\u306e\u307f\u3092\u6307\u5b9a\u3057\u3066\u5b9f\u884c\u3059\u308b\u3068\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059\u3002
\u30bb\u30ab\u30f3\u30c0\u30ea\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3078\u306e\u30af\u30a8\u30ea\u30fc\u5b9f\u65bd\u3082\u540c\u69d8\u3067\u3059\u3002<\/p>\n\n\n\n

\u30c6\u30fc\u30d6\u30eb\u306e\u5185\u5bb9<\/h1>\n\n\n\n

Musics\u3068\u3044\u3046\u30c6\u30fc\u30d6\u30eb\u306b\u5bfe\u3057\u3066\u30af\u30a8\u30ea\u30fc\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002
\u30c6\u30fc\u30d6\u30eb\u306e\u5185\u5bb9\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

artist: \u30d1\u30fc\u30c6\u30b7\u30e7\u30f3\u30ad\u30fc
title: \u30bd\u30fc\u30c8\u30ad\u30fc<\/p>\n\n\n\n

\u30c6\u30fc\u30d6\u30eb\u3078\u306e\u30af\u30a8\u30ea\u30fc<\/h1>\n\n\n\n

\u5b9f\u884c<\/h2>\n\n\n\n

\u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30f3\u30ad\u30fc\u3067\u30af\u30a8\u30ea\u30fc\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002artist \u304c “YUI” \u3067\u3042\u308b\u9805\u76ee\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

Lambda\u95a2\u6570\u306e\u5185\u5bb9\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n

const DynamoDbSetter = require(".\/DynamoDbSetter");\n \nmodule.exports = class DynamoDbOperator extends DynamoDbSetter{\n \n    async exec(event) {\n \n        let artist = event.artist;\n\n        \/\/ \u5b9f\u884c\u5185\u5bb9\n        let params = {\n            TableName : "Musics",\n            KeyConditionExpression: '#artist = :artistValue',\n            ExpressionAttributeNames: {\n                '#artist': 'artist',\n            },\n            ExpressionAttributeValues: {\n                ':artistValue': {'S': artist},\n            }\n        };\n  \n        \/\/ \u5b9f\u884c\n        return await this.dynamodb.query(params).promise();\n\n    }\n\n}<\/code><\/pre><\/div>\n\n\n\n
Lambda\u95a2\u6570\u5b9f\u884c\u30b3\u30de\u30f3\u30c9\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002AWS CLI \u304b\u3089\u5b9f\u884c\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
aws lambda invoke --function-name DynamoDbFunction --payload $(echo '{ "artist": "YUI"}' | base64) outputfile.txt<\/code><\/pre><\/div>\n\n\n\n
\u5b9f\u884c\u5185\u5bb9\u306e\u8aac\u660e<\/h2>\n\n\n\n
KeyConditionExpression<\/h3>\n\n\n\n
\u30af\u30a8\u30ea\u30fc\u3092\u5b9f\u884c\u3059\u308b\u6642\u306e\u30ad\u30fc\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002
“#~” \u306f \u30ad\u30fc\u540d\u306e\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u30fc\u306b\u306a\u308a\u307e\u3059\u3002
“:~” \u306f \u5024\u306e\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u30fc\u306b\u306a\u308a\u307e\u3059\u3002
\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u30fc\u3092\u4f7f\u7528\u3059\u308b\u306e\u306f\u3001\u30ad\u30fc\u540d\u3001\u5024\u306bDynamoDB\u306e\u4e88\u7d04\u8a9e\u304c\u4f7f\u7528\u3055\u308c\u308b\u5834\u5408\u306b\u6b63\u5e38\u306b\u52d5\u4f5c\u3057\u306a\u3044\u304b\u3089\u3067\u3059\u3002
\u4e88\u7d04\u8a9e\u3068\u88ab\u3089\u306a\u3051\u308c\u3070\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u30fc\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u30fc\u3092\u4f7f\u7528\u3059\u308b\u65b9\u304c\u30a8\u30e9\u30fc\u304c\u306a\u304f\u5b9f\u884c\u3067\u304d\u308b\u306e\u3067\u30d7\u30ec\u30fc\u30b9\u30db\u30eb\u30c0\u30fc\u3092\u4f7f\u3044\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
DynamoDB\u306e\u4e88\u7d04\u8a9e\u306b\u3064\u3044\u3066\u306f\u4ee5\u4e0b\u3092\u53c2\u7167\u3057\u3066\u4e0b\u3055\u3044\u3002<\/p>\n\n\n\n
\u53c2\u7167<\/span>\n
DynamoDB\u4e88\u7d04\u8a9e<\/a><\/p>\n<\/div>\n\n\n\n
ExpressionAttributeNames<\/h3>\n\n\n\n
“#~” \u3067\u6307\u5b9a\u3057\u305f\u5b9f\u969b\u306e\u30ad\u30fc\u540d\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
ExpressionAttributeValues<\/h3>\n\n\n\n
“:~” \u3067\u6307\u5b9a\u3057\u305f\u5b9f\u969b\u306e\u5024\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u7d50\u679c<\/h2>\n\n\n\n
{\n    "Items": [\n        {\n            "year": {\n                "N": "2021"\n            },\n            "artist": {\n                "S": "YUI"\n            },\n            "sngsCnt": {\n                "N": "18"\n            },\n            "genre": {\n                "S": "POP"\n            },\n            "title": {\n                "S": "GREEN GARDEN POP"\n            }\n        },\n        {\n            "year": {\n                "N": "2012"\n            },\n            "artist": {\n                "S": "YUI"\n            },\n            "sngsCnt": {\n                "N": "18"\n            },\n            "genre": {\n                "S": "POP"\n            },\n            "title": {\n                "S": "ORANGE GARDEN POP"\n            }\n        }\n    ],\n    "Count": 2,\n    "ScannedCount": 2\n}<\/code><\/pre><\/div>\n\n\n\n
\u30b0\u30ed\u30fc\u30d0\u30eb\u30bb\u30ab\u30f3\u30c0\u30ea\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3078\u306e\u30af\u30a8\u30ea\u30fc<\/h1>\n\n\n\n
Musics\u30c6\u30fc\u30d6\u30eb\u3092\u30d9\u30fc\u30b9\u30c6\u30fc\u30d6\u30eb\u3068\u3057\u305f genre_year_index \u3068\u3044\u3046\u30b0\u30ed\u30fc\u30d0\u30eb\u30bb\u30ab\u30f3\u30c0\u30ea\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306b\u5bfe\u3057\u3066\u30af\u30a8\u30ea\u30fc\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u30bb\u30ab\u30f3\u30c0\u30ea\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u4f5c\u6210<\/h2>\n\n\n\n
\u30b0\u30ed\u30fc\u30d0\u30eb\u30bb\u30ab\u30f3\u30c0\u30ea\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002
\u30b0\u30ed\u30fc\u30d0\u30eb\u30bb\u30ab\u30f3\u30c0\u30ea\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u4f5c\u6210\u306b\u3064\u3044\u3066\u306f\u4ee5\u4e0b\u3092\u53c2\u7167\u3057\u3066\u4e0b\u3055\u3044\u3002<\/p>\n\n\n\n
\u53c2\u7167<\/span>\n
\u3010DynamoDB\u3011AWS SDK \u3092\u4f7f\u7528\u3057\u305f\u30b0\u30ed\u30fc\u30d0\u30eb\u30bb\u30ab\u30f3\u30c0\u30ea\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u4f5c\u6210<\/a><\/p>\n<\/div>\n\n\n\n
\u4ee5\u4e0b\u3092\u5b9f\u884c\u3057\u3001\u30b0\u30ed\u30fc\u30d0\u30eb\u30bb\u30ab\u30f3\u30c0\u30ea\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
const DynamoDbSetter = require(".\/DynamoDbSetter");\n \nmodule.exports = class DynamoDbOperator extends DynamoDbSetter{\n \n    async exec(event) {\n \n        \/\/ \u5b9f\u884c\u5185\u5bb9\n        let params = {\n            TableName : "Musics",\n            AttributeDefinitions: [\n                { AttributeName: "genre", AttributeType: "S" },\n                { AttributeName: "year", AttributeType: "N" },\n            ],\n            GlobalSecondaryIndexUpdates: [\n                {\n                    Create: {\n                        IndexName: "genre_year_index", \n                        KeySchema: [\n                            { AttributeName: "genre", KeyType: "HASH"},  \/\/Partition key\n                            { AttributeName: "year", KeyType: "RANGE" }  \/\/Sort key\n                        ],\n                        Projection: {\n                            ProjectionType: "INCLUDE",\n                            NonKeyAttributes: ["sngsCnt"]\n                        },\n                        ProvisionedThroughput: {\n                            ReadCapacityUnits: 10, \n                            WriteCapacityUnits: 10\n                        }\n                    }\n                },\n            ],\n        };\n    \n        \/\/ \u5b9f\u884c\n        return await this.dynamodb.updateTable(params).promise();\n\n    }\n\n}<\/code><\/pre><\/div>\n\n\n\n
\u30b0\u30ed\u30fc\u30d0\u30eb\u30bb\u30ab\u30f3\u30c0\u30ea\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u30d7\u30e9\u30a4\u30de\u30ea\u30ad\u30fc\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n
genre: \u30d1\u30fc\u30c6\u30b7\u30e7\u30f3\u30ad\u30fc
year: \u30bd\u30fc\u30c8\u30ad\u30fc<\/p>\n\n\n\n
\u30d1\u30fc\u30c6\u30b7\u30e7\u30f3\u30ad\u30fc\u306e\u307f\u3092\u6307\u5b9a\u3057\u305f\u30af\u30a8\u30ea\u30fc\u306e\u5b9f\u884c<\/h2>\n\n\n\n
\u5b9f\u884c<\/h3>\n\n\n\n
\u30d1\u30fc\u30c6\u30b7\u30e7\u30f3\u30ad\u30fc\u3067\u30af\u30a8\u30ea\u30fc\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002genre \u304c “Lock” \u3067\u3042\u308b\u9805\u76ee\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002
Lambda\u95a2\u6570\u306e\u5185\u5bb9\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n
const DynamoDbSetter = require(".\/DynamoDbSetter");\n \nmodule.exports = class DynamoDbOperator extends DynamoDbSetter{\n \n    async exec(event) {\n \n        let genre = event.genre;\n        \n        \/\/ \u5b9f\u884c\u5185\u5bb9\n        let params = {\n            TableName : "Musics",\n            IndexName: 'genre_year_index',\n            KeyConditionExpression: '#genre = :genreValue',\n            ExpressionAttributeNames: {\n                '#genre': 'genre',\n            },\n            ExpressionAttributeValues: {\n                ':genreValue': {'S': genre},\n            }\n        };\n  \n        \/\/ \u5b9f\u884c\n        return await this.dynamodb.query(params).promise();\n\n    }\n\n}<\/code><\/pre><\/div>\n\n\n\n
Lambda\u95a2\u6570\u5b9f\u884c\u30b3\u30de\u30f3\u30c9\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002AWS CLI \u304b\u3089\u5b9f\u884c\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
aws lambda invoke --function-name DynamoDbFunction --payload $(echo '{ "genre": "Lock"}' | base64) outputfile.txt<\/code><\/pre><\/div>\n\n\n\n
\u7d50\u679c<\/h3>\n\n\n\n
{\n    "Items": [\n        {\n            "year": {\n                "N": "1991"\n            },\n            "artist": {\n                "S": "B'z"\n            },\n            "genre": {\n                "S": "Lock"\n            },\n            "title": {\n                "S": "IN THE LIFE"\n            }\n        },\n        {\n            "year": {\n                "N": "2002"\n            },\n            "artist": {\n                "S": "B'z"\n            },\n            "sngsCnt": {\n                "N": "12"\n            },\n            "genre": {\n                "S": "Lock"\n            },\n            "title": {\n                "S": "GREEN"\n            }\n        }\n    ],\n    "Count": 2,\n    "ScannedCount": 2\n}<\/code><\/pre><\/div>\n\n\n\n
\u30d1\u30fc\u30c6\u30b7\u30e7\u30f3\u30ad\u30fc\u3068\u30bd\u30fc\u30c8\u30ad\u30fc\u3092\u6307\u5b9a\u3057\u305f\u30af\u30a8\u30ea\u30fc\u306e\u5b9f\u884c<\/h2>\n\n\n\n
\u5b9f\u884c<\/h3>\n\n\n\n
\u30d1\u30fc\u30c6\u30b7\u30e7\u30f3\u30ad\u30fc\u3068\u30bd\u30fc\u30c8\u30ad\u30fc\u3067\u30af\u30a8\u30ea\u30fc\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002genre \u304c “POP” \u3067 year \u304c “2021” \u3067\u3042\u308b\u9805\u76ee\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002
Lambda\u95a2\u6570\u306e\u5185\u5bb9\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n
const DynamoDbSetter = require(".\/DynamoDbSetter");\n \nmodule.exports = class DynamoDbOperator extends DynamoDbSetter{\n \n    async exec(event) {\n \n        let genre = event.genre;\n        let year = event.year;\n        \n        \/\/ \u5b9f\u884c\u5185\u5bb9\n        let params = {\n            TableName : "Musics",\n            IndexName: 'genre_year_index',\n            KeyConditionExpression: '#genre = :genreValue AND #year = :yearValue',\n            ExpressionAttributeNames: {\n                '#genre': 'genre',\n                '#year': 'year',\n            },\n            ExpressionAttributeValues: {\n                ':genreValue': {'S': genre},\n                ':yearValue': {'N': String(year)},\n            }\n        };\n  \n        \/\/ \u5b9f\u884c\n        return await this.dynamodb.query(params).promise();\n \n    }\n \n}<\/code><\/pre><\/div>\n\n\n\n
“year” \u306f\u6570\u5024\u578b\u3067\u3059\u304c\u3001\u6587\u5b57\u5217\u3067\u5024\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
Lambda\u95a2\u6570\u5b9f\u884c\u30b3\u30de\u30f3\u30c9\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002AWS CLI \u304b\u3089\u5b9f\u884c\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
aws lambda invoke --function-name DynamoDbFunction --payload $(echo '{ "genre": "POP", "year": 2021}' | base64) outputfile.txt<\/code><\/pre><\/div>\n\n\n\n
\u7d50\u679c<\/h3>\n\n\n\n
{\n    "Items": [\n        {\n            "year": {\n                "N": "2021"\n            },\n            "artist": {\n                "S": "YUI"\n            },\n            "sngsCnt": {\n                "N": "18"\n            },\n            "genre": {\n                "S": "POP"\n            },\n            "title": {\n                "S": "GREEN GARDEN POP"\n            }\n        }\n    ],\n    "Count": 1,\n    "ScannedCount": 1\n}<\/code><\/pre><\/div>\n\n\n\n
\u6700\u5f8c\u306b<\/h1>\n\n\n\n
\u6b21\u56de\u306f\u30af\u30a8\u30ea\u30fc\u3067\u9805\u76ee\u3092\u53d6\u5f97\u3059\u308b\u969b\u306b\u6761\u4ef6\u3092\u6307\u5b9a\u3057\u3066\u53d6\u5f97\u3067\u304d\u308b\u4e8b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u6b21\u56de<\/span>\n
\u3010DynamoDB\u3011AWS SDK \u3092\u4f7f\u7528\u3057\u305f\u6761\u4ef6\u4ed8\u304d\u8907\u6570\u9805\u76ee\u306e\u53d6\u5f97<\/a><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
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