Ancestries Rest API Endpoint to Get All Ancestries for a given gwas study

[sprintell]

As developer I want an api endpoint such that that when I send a GET request to the URL, hateoas compliant, paginated list of all ancestries of a given study in the database is returned in JSON Format

This is a new endpoint, this is required to ensure scalability, it was previously embedded in the studies endpoint, but now a child object to the Studies data, and should still be accessible from within the study endpoint as a link on the URL

{
   "type":"initial",
   "numberOfIndividuals":4390,
   "ancestralGroups":[
  	{
     	"ancestralGroup":"European"
  	}
   ],
   "countryOfOrigin":[
 	 
   ],
   "countryOfRecruitment":[
  	{
     	"majorArea":"Europe",
     	"region":"Northern Europe",
     	"countryName":"U.K."
  	}
   ]
}

Management Rules

• Rule 1: Endpoint - /v1/studies/{accessionId}/ancestries
• Rule 2: HTTP Request Method - GET
• Rule 3: Endpoint should accept accessionId as a path variable
• Rule 4: Endpoint should return full attributes of the ancestries
• Rule 5: Endpoint should be accessible to all

Acceptance Criteria

• Given a correct ancestries, when the front end sends a GET request to the endpoint
• List of corresponding ancestries data is returned in JSON Format
• Given a wrong accessionId, when a GET request is sent to the endpoint
• Properly described Resource not found exception error should be returned as JSON payload

Additional details here