AWS AppSync Schema - Arrays of Connections Both Directions - amazon-web-services

Question

My issue is that I need to have a connection between two schema models where each links to an array of the other. The scenario here is I have multiple Location, each Location has multiple Staff. Each Staff can also have multiple Location that they are authorized at.
I don't see a way to do this in the documentation. Originally I have each Location with multiple Staff, but this limits each Staff to 1 Location. I'm toying with the idea of altLocationNames as an array of strings with each Staff, but this would require me to perform an extra query of all Staff or all Locations if the altLocationNames is needed.
Does anybody know a clever way to do this, or even just the best way for me to get all Staff at Location as well as all Locations for a specific Staff?
Schemas:
type Staff
#model
#auth(rules: [{ allow: private, provider: iam }, { allow: private, provider: userPools }])
#key(fields: ["email"])
#key(name: "byId", fields: ["id"], queryField: "listStaffsById")
#key(name: "byLocation", fields: ["locationName", "recordedAt"], queryField: "listStaffsByLocation")
#key(name: "byRole", fields: ["role", "recordedAt"], queryField: "listStaffsByRole")
#key(name: "byStatus", fields: ["status", "recordedAt"], queryField: "listStaffsByStatus") {
email: AWSEmail!
altEmails: [AWSEmail]
id: ID!
locationName: String!
location: Location #connection(fields: ["locationName"])
altLocationNames: [String]
firstName: String
lastName: String
role: StaffRole
status: StaffStatus
recordedAt: AWSDateTime!
createdAt: AWSDateTime!
updatedAt: AWSDateTime!
}
type Location
#model
#auth(rules: [{ allow: private, provider: iam }, { allow: private, provider: userPools }])
#key(fields: ["name"]) {
name: String!
subdomain: String
address: String
phone: String
email: AWSEmail
staff: [Staff] #connection(keyName: "byLocation", fields: ["name"])
createdAt: AWSDateTime!
updatedAt: AWSDateTime!
}

Answer 1

Can you create middle table between location and staff table and fetch via that table.
Example:
type Staff
#model {
id: ID!
name: String
locations: [StaffLocation] #connection(keyName: "staffLocationByStaffId", fields: ["id"])
}
type Location
#model {
id: ID!
name: String
staffs: [StaffLocation] #connection(keyName: "staffLocationByLocationId", fields: ["id"])
}
type StaffLocation
#key(name: "staffLocationByStaffId", fields: ["staffId"])
#key(name: "staffLocationByLocationId", fields: ["locationId"])
#model {
id: ID!
staffId: ID!
locationId: ID!
staff: Staff #connection(fields: ["staffId"])
location: Location #connection(fields: ["locationId"])
}