DynamoDB FilterExpression with multiple condition javascript

user_5966810 0
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I have a table with partition key and sort key also 2 other columns. I am unable to get items using FilterExpression for multiple conditions with AND in DynamoDB using javaScript AWS SDK. Can anyone provide correct code to retrieve data with multiple conditions in FilterExpression? My code is as follows:

var params = {
    TableName: 'Department',
    KeyConditionExpression: '#company = :companyId'
    , ExpressionAttributeNames: {
        '#company': 'CompanyID',
        '#dType': 'DepartmentType',
        '#cTime': 'CreatedTime'
    }
    , ExpressionAttributeValues: {
        ':companyId': 'Test',
        ':deptType': dType,
        ':daysPrior': 1250456879634
    },FilterExpression: '#dType = :deptType AND #ts > :daysPrior' 
};
amazon-dynamodb javascript
2 Answers

In case you need a bit more complex filter expressions to scan or query your DynamoDB table, you could use brackets, for example:

var params = {
    TableName: "Department",
    ...
    FilterExpression: "(not (#type <> :type and #company = :company)) or (#timestamp > :timestamp)",
    ...
};

Note: this example filter expression does not have a particular meaning.

user_27003560
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