DynamoDb -根据DynamoDBDocument集合中的属性进行筛选或扫描

const AWS = require('aws-sdk');
const dynamoDb = new AWS.DynamoDB.DocumentClient();

const params = {
  TableName: 'YourTableName',
  FilterExpression: 'YourAttributeName = :attributeValue',
  ExpressionAttributeValues: {
    ':attributeValue': 'YourDesiredValue'
  }
};

dynamoDb.scan(params, (error, result) => {
  if (error) {
    console.error('Error scanning table:', error);
  } else {
    console.log('Items:', result.Items);
  }
});

const AWS = require('aws-sdk');
const dynamoDb = new AWS.DynamoDB.DocumentClient();

const params = {
  TableName: 'YourTableName',
  KeyConditionExpression: 'YourPartitionKey = :partitionKeyValue AND YourSortKey = :sortKeyValue',
  ExpressionAttributeValues: {
    ':partitionKeyValue': 'YourPartitionKeyValue',
    ':sortKeyValue': 'YourSortKeyValue'
  }
};

dynamoDB.query(params, (error, result) => {
  if (error) {
    console.error('Error querying table:', error);
  } else {
    console.log('Items:', result.Items);
  }
});