How to get data from aws Dynamodb with using partition key only?

Question

I am using aws-sdk-go library for DynamoDb connectivity in Golang.

My DynamoDb table have a Partition key DeviceId (String) and a Sort Key Time (Number). How can I wri

Answer 1

You have to use Query or Scan operation, this is a simple example but you can read more on Amazon documentation here

In particular, Query operation

A Query operation finds items in a table or a secondary index using only primary key attribute values

var queryInput = &dynamodb.QueryInput{
    TableName: aws.String(dynamoRestDataTableName),
    KeyConditions: map[string]*dynamodb.Condition{
        "DeviceId": {
            ComparisonOperator: aws.String("EQ"),
            AttributeValueList: []*dynamodb.AttributeValue{
                {
                    S: aws.String("aDeviceId"),
                },
            },
        },
    },
}

var resp, err = dynamoSvc.Query(queryInput)
if err != nil {
    return nil, err
}