DynamoDB: Attribute Not Null (Guide w/ Code Examples)

Rafal Wilinski

Provided by Rafal Wilinski

In the AWS JavaScript SDK, you can set an attribute to be not null by including it in the Attribute_definitions field when creating a table, and setting its nullable property to false.

Additionally, you can use the update method to update the attribute and set the NULL action to NOT_NULL in the Attribute_updates field. Below is an example of how to create a table with a non-null attribute:

var AWS = require('aws-sdk'); var dynamodb = new AWS.DynamoDB({apiVersion: '2012-08-10'}); var params = { AttributeDefinitions: [ { AttributeName: 'example', AttributeType: 'S', }, ], KeySchema: [ { AttributeName: 'example', KeyType: 'HASH', }, ], ProvisionedThroughput: { ReadCapacityUnits: 1, WriteCapacityUnits: 1, }, TableName: 'example_table', }; dynamodb.createTable(params, function(err, data) { if (err) { console.log("Error", err); } else { console.log("Success", data); } });

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