How to use Dynamoose combined with AWS SAM? - amazon-web-services

Question

Let's say I have the following AWS SAM resource that creates a DynamoDB table:
EmployeeTable:
Type: AWS::DynamoDB::Table
Properties:
TableName: Employee
AttributeDefinitions:
- AttributeName: EmployeeId
AttributeType: S
- AttributeName: LocationId
AttributeType: S
- AttributeName: DepartmentId
AttributeType: S
KeySchema:
- AttributeName: EmployeeId
KeyType: HASH
GlobalSecondaryIndexes:
- IndexName: Location-index
KeySchema:
- AttributeName: LocationId
KeyType: HASH
Projection:
ProjectionType: ALL
BillingMode: PAY_PER_REQUEST
And I want to interact with DynamoDB through Dynamoose.
In Dynamoose, we have the Model and Schema resources that help us define the shape of our table.
Because I already created the table and the schema (attributes, indexes, etc) within the AWS SAM template, how should I use Dynamoose Schema? How should I use indexes?
Thanks!

Answer 1

Here is how we can implement the dynamodb table using dynamoose.
Where schema can be written like:
const schema = new dynamoose.Schema({
EmployeeId: {
type: String,
required: true,
hashKey: true,
},
LocationId: {
type: String,
required: true,
index: [
{
global: true,
name: 'Location-index',
throughput: { read: 1, write: 1 },
project: true,
},
],
},
DepartmentId: {
type: String,
required: true,
},
});
And for model, we just need to pass the schema like:
const Employee = dynamoose.model("Employee", schema);