package models //Member : For /api/projects/:pid/members type Member struct { RoleID int `json:"role_id"` Member *MemberUser `json:"member_user"` } //MemberUser ... type MemberUser struct { Username string `json:"username"` } //ExistingMember : For GET /api/projects/20/members type ExistingMember struct { MID int `json:"id"` Name string `json:"entity_name"` RoleID int `json:"role_id"` }