Validate Project exists before creating Tasks #9
Description
The Task API currently does not validate that a ProjectId given to it in a POST request is valid and exists.
To address this a SNS subscriber needs to be created for listening to project-created events. These events are already being published by the Project API.
The Task API can store the project-created event data in a dedicated ProjectLookup DynamoDB Table. When HTTP POST are made a query against the table can be made to validate the ProjectId delivered is real and can be used.
The project-deleted SNS event handler will need to be updated to delete the Project from the new ProjectLookup table when it is triggered to delete Project Tasks.