aliyun-tablestore-nodejs-sdk/samples/primarykey.js

TableStore SDK for JavaScript

var TableStore = require('../index.js');
var Long = TableStore.Long;
var client = require('./client');

function getRow(pks) {

  var params = {
    tableName: "autoIncTable",
    primaryKey: [
      { 'stringPK': pks[0]['value'] },
      { 'integerPK': pks[1]['value'] },
      { 'binaryPK': pks[2]['value'] },
      { 'autoIncPK': pks[3]['value'] }],
  };

  client.getRow(params, function (err, data) {
    if (err) {
      console.log('error:', err);
      return;
    }
    console.log('get row success:', data);
  });
}

function putRow() {
  var putParams = {
    tableName: "autoIncTable",
    condition: new TableStore.Condition(TableStore.RowExistenceExpectation.IGNORE, null),
    primaryKey: [
      { 'stringPK': 'pk1' },
      { 'integerPK': Long.fromNumber(1) },
      { 'binaryPK': new Buffer('test') },
      { 'autoIncPK': TableStore.PK_AUTO_INCR }
    ],
    attributeColumns: [
      { 'col1': 'col1val' }
    ],
    returnContent: { returnType: TableStore.ReturnType.Primarykey }
  };

  client.putRow(putParams, function (err, data) {
    if (err) {
      console.log('error:', err);
      return;
    }

    console.log('put row success');

    getRow(data.row.primaryKey)
  });

}


function createTable() {
  var createParams = {
    tableMeta: {
      tableName: 'autoIncTable',
      primaryKey: [
        {
          name: 'stringPK',
          type: 'STRING'
        },
        {
          name: 'integerPK',
          type: 'INTEGER'
        },
        {
          name: 'binaryPK',
          type: 'BINARY'
        },
        {
          name: 'autoIncPK',
          type: 'INTEGER',
          option: 'AUTO_INCREMENT'//自增列，指定otpion为AUTO_INCREMENT
        },
      ]
    },
    reservedThroughput: {
      capacityUnit: {
        read: 0,
        write: 0
      }
    },
    tableOptions: {
      timeToLive: -1,// 数据的过期时间, 单位秒, -1代表永不过期. 假如设置过期时间为一年, 即为 365 * 24 * 3600.
      maxVersions: 1// 保存的最大版本数, 设置为1即代表每列上最多保存一个版本(保存最新的版本).
    }
  };

  client.createTable(createParams, function (err, data) {
    
    if (err) {
      console.log('error:', err);
      return;
    }
    console.log('create table success');
    putRow()
  });
}

createTable()