Perform operations

After the table is created, use the DynamoDbTable instance to perform operations against the DynamoDB table.

In the following example, a singleton DynamoDbTable<Customer> is passed as a parameter along with a Customer data class instance to add a new item to the table.

    public static void putItemExample(DynamoDbTable<Customer> customerTable, Customer customer){
        logger.info(customer.toString());
        customerTable.putItem(customer);
    }

        Customer customer = new Customer();
        customer.setId("1");
        customer.setCustName("Customer Name");
        customer.setEmail("customer@example.com");
        customer.setRegistrationDate(Instant.parse("2023-07-03T10:15:30.00Z"));

Before sending the customer object to the DynamoDB service, log the output of the object's toString() method to compare it to what the enhanced client sends.

Customer [id=1, name=Customer Name, email=customer@example.com, regDate=2023-07-03T10:15:30Z]

Wire-level logging shows the payload of the generated request. The enhanced client generated the low-level representation from the data class. The regDate attribute, which is an Instant type in Java, is represented as a DynamoDB string.

{
  "TableName": "Customer",
  "Item": {
    "registrationDate": {
      "S": "2023-07-03T10:15:30Z"
    },
    "id": {
      "S": "1"
    },
    "custName": {
      "S": "Customer Name"
    },
    "email": {
      "S": "customer@example.com"
    }
  }
}