标签：latest catch https message event back spl 学生 color
path, operand)case ‘GET‘: { var next = null; if( event.queryStringParameters && event.queryStringParameters.next ){ next = JSON.parse( event.queryStringParameters.next ); } console.log( next ); var params = { TableName: "book_table", KeyConditionExpression: "#key = :value", //contains(path, operand) FilterExpression: "contains(#n, :n) and #p < :p", ExpressionAttributeNames: { "#key": "hash", "#n": "name", "#p": "price" }, ExpressionAttributeValues: { ":p": 188.88, ":n": "三重门", ":value": "book" }, Limit: 10 }; if( next ){ params = {...params, ExclusiveStartKey: next.LastEvaluatedKey }; } await docClient.query( params ).promise().then( ( data ) => { response.body = JSON.stringify({ "success": data }); callback( null, response ); } ).catch( ( err ) => { response.statusCode = err.statusCode; response.body = JSON.stringify({ code: err.code, message: err.message }); callback( null, response ); } ) break; }
程序运行成功后返回：
1 { 2 "success": { 3 "Items": [ 4 { 5 "date": "2010-01-01", 6 "author": "韩寒", 7 "price": 55.55, 8 "zan": 520, 9 "count": 10, 10 "name": "三重门", 11 "description": "本书通过少年林雨翔的视角，向读者揭示了真实的高中生的生活，体现了学生式的思考、困惑和梦想。", 12 "id": "05d101be-d5e8-43ec-8eb6-5530e21af83e", 13 "sn": "100-100-010", 14 "type": "情感其他", 15 "uri": "https://www.cnblogs.com/landen/p/9790704.html ", 16 "hash": "book" 17 }, 18 { 19 "date": "2010-01-01", 20 "author": "韩寒", 21 "price": 99.99, 22 "count": 8, 23 "name": "三重门", 24 "description": "本书通过少年林雨翔的视角，向读者揭示了真实的高中生的生活，体现了学生式的思考、困惑和梦想。", 25 "id": "4b99e00f-9f57-41f7-80de-d581e8c84522", 26 "sn": "100-100-100", 27 "type": "情感其他", 28 "hash": "book" 29 }, 30 { 31 "date": "2010-01-01", 32 "author": "韩寒", 33 "price": 23.5, 34 "count": 7, 35 "name": "三重门", 36 "description": "本书通过少年林雨翔的视角，向读者揭示了真实的高中生的生活，体现了学生式的思考、困惑和梦想。", 37 "id": "5ed6bce8-3ffb-46c8-bc04-04b31d922fd8", 38 "sn": "100-100-008", 39 "type": "情感其他", 40 "hash": "book" 41 }, 42 { 43 "date": "2010-01-01", 44 "author": "韩寒", 45 "price": 23.5, 46 "name": "三重门", 47 "count": 7, 48 "description": "本书通过少年林雨翔的视角，向读者揭示了真实的高中生的生活，体现了学生式的思考、困惑和梦想。", 49 "id": "6f1e4501-f2ba-499f-a2ad-d1173adc062a", 50 "sn": "100-100-008", 51 "type": "情感其他", 52 "hash": "book" 53 }, 54 { 55 "date": "2010-01-01", 56 "author": "韩寒", 57 "price": 23.5, 58 "name": "三重门", 59 "description": "本书通过少年林雨翔的视角，向读者揭示了真实的高中生的生活，体现了学生式的思考、困惑和梦想。", 60 "id": "898a4f74-648d-4996-8ff9-3395c668d506", 61 "sn": "100-100-008", 62 "type": "情感其他", 63 "hash": "book" 64 }, 65 { 66 "date": "2010-01-01", 67 "author": "韩寒", 68 "price": 103.5, 69 "name": "三重门", 70 "count": 7, 71 "description": "本书通过少年林雨翔的视角，向读者揭示了真实的高中生的生活，体现了学生式的思考、困惑和梦想。", 72 "id": "8baff9a7-179b-46b3-801d-5e7b9abd3dfe", 73 "sn": "100-100-008", 74 "type": "情感其他", 75 "hash": "book" 76 }, 77 { 78 "date": "2010-01-01", 79 "author": "韩寒", 80 "price": 103.5, 81 "name": "三重门", 82 "count": 7, 83 "description": "本书通过少年林雨翔的视角，向读者揭示了真实的高中生的生活，体现了学生式的思考、困惑和梦想。", 84 "id": "960eb7c2-5ac1-4e9a-859e-31c2c8754972", 85 "sn": "100-100-008", 86 "type": "情感其他", 87 "hash": "book" 88 } 89 ], 90 "Count": 7, 91 "ScannedCount": 10, 92 "LastEvaluatedKey": { 93 "hash": "book", 94 "id": "9787540475581" 95 } 96 } 97 }
本文为原创，还望指教！
若有疑问，可在下方留言，也可自读AWS官方文档——DynamoDB：https://docs.aws.amazon.com/zh_cn/amazondynamodb/latest/developerguide/Expressions.ExpressionAttributeValues.html
标签：latest catch https message event back spl 学生 color
原文地址：https://www.cnblogs.com/landen/p/9797088.html
