In this recipe, we will see how to model data for this web application and create a DynamoDB table accordingly.
To get started with this recipe, you need to know how to create a table in DynamoDB using the console.
To perform data modeling for any web application using the NoSQL database as a backend, we need to first start with what queries we would like to execute on the tables. Considering the requirements, we will need at least two tables:
User: This is a table used to store information of a valid user's details along with the credentials
Contact: This is a table used to store information of all the contacts added by the users
As we will use the user table to save the registered user's information, as well as to sign-in, we can use email as the hash key for this table.
Here, we won't need a range key as the e-mail ID should be good enough to recognize a user for its registration and login. So, let's create the user table...