Epic/ListDistinctFieldValues

[faraonc]

Objective

Chrome wants to get the following unique values for the following field names:

• Publisher (lastname & firstname)
• Study Site (city, state, province, & country)
• Call Type Name
• Ground Type
• Sensor Type
• Sensor Name
• Record Timestamp (Between min and max bounds)

Purpose

To generate available values to search.

Procedure

1. Chrome goes to Search Filter Page
2. hwsc-frontend calls hwsc-app-gateway-svc's rpc ListDistinctFieldValues (AppGatewayServiceRequest) returns (AppGatewayServiceResponse) {}
   • Required args for AppGatewayServiceRequest
     • NONE
3. hwsc-app-gateway-svc calls hwsc-document-svc's rpc ListDistinctFieldValues (DocumentRequest) returns (DocumentResponse) {}
   • Required args for DocumentRequest
     • NONE
4. hwsc-document-svc queries MongoDB
5. hwsc-document-svc's returns to hwsc-app-gateway-svc from rpc ListDistinctFieldValues (DocumentRequest) returns (DocumentResponse) {}
   • Status: &pb.DocumentResponse_Code{Code: uint32(codes.OK)}
     • Message: codes.OK.String()
     • QueryResults: queryResult
6. hwsc-app-gateway-svc returns to hwsc-frontend from rpc ListDistinctFieldValues (AppGatewayServiceRequest) returns (AppGatewayServiceResponse) {}
   • Status: &pb.AppGatewayServiceResponse_Code{Code: uint32(codes.OK)}
     • Message: codes.OK.String()
     • QueryResults: queryResult
7. hwsc-frontend checks Status or Message
8. If OK hwsc-frontend renders Search Filter Page, else a default error page with error 500.