Amazon DynamoDB
开发人员指南 (API 版本 2012-08-10)
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03-getitem-test.js

03-getitem-test.js 程序在 TryDaxTable 上执行 GetItem 操作。

const AmazonDaxClient = require('amazon-dax-client'); var AWS = require("aws-sdk"); var region = "us-west-2"; AWS.config.update({ region: region }); var ddbClient = new AWS.DynamoDB.DocumentClient() var daxClient = null; if (process.argv.length > 2) { var dax = new AmazonDaxClient({endpoints: [process.argv[2]], region: region}) daxClient = new AWS.DynamoDB.DocumentClient({service: dax }); } var client = daxClient != null ? daxClient : ddbClient; var tableName = "TryDaxTable"; var pk = 1; var sk = 10; var iterations = 5; for (var i = 0; i < iterations; i++) { var startTime = new Date().getTime(); for (var ipk = 1; ipk <= pk; ipk++) { for (var isk = 1; isk <= sk; isk++) { var params = { TableName: tableName, Key:{ "pk": ipk, "sk": isk } }; client.get(params, function(err, data) { if (err) { console.error("Unable to read item. Error JSON:", JSON.stringify(err, null, 2)); } else { // GetItem succeeded } }); } } var endTime = new Date().getTime(); console.log("\tTotal time: ", (endTime - startTime) , "ms - Avg time: ", (endTime - startTime) / iterations, "ms"); }