Let's understand how to update an item from the DynamoDB table using the AWS SDK for Java.
Let's try to understand how to update a stored item in the DynamoDB table using Java. The update request allows us to add a new attribute to the item, update the value of an attribute, or remove an attribute from the item:
Create an instance of the
DynamoDBclass and initialize it with credentials:AmazonDynamoDBClient client = new AmazonDynamoDBClient(new ProfileCredentialsProvider()); client.setRegion(Region.getRegion(Regions.US_EAST_1)); DynamoDB dynamoDB = new DynamoDB(client);
Get the
tableby specifying the name:Table table = dynamoDB.getTable("productTable");Create a map of
ExpressionAttributeValuesin which you need to specify the attributes that you wish to update:Map<String, String> expressionAttributeNames = new HashMap<String, String...