gistfile1.go

//Not very DRY at all, there should be a better way...

type Case struct {
	ID              *int                    `json:"id,omitempty"`
	ExternalID      *string                 `json:"external_id,omitempty"`
	Type            *string                 `json:"type,omitempty"`
}
type caseBuilder builder.Builder
func (b caseBuilder) Build() Case {
  return builder.GetStruct(b).(Case)
}
func (b caseBuilder) SetStringField(field string,value string) caseBuilder {
  return builder.Set(b, field, &value).(caseBuilder)
}
var CaseBuilder = builder.Register(caseBuilder{}, Case{}).(caseBuilder)

//rinse and repeat...

type Customer struct {
	ID              *int                    `json:"id,omitempty"`
	ExternalID      *string                 `json:"external_id,omitempty"`
	Name            *string                 `json:"name,omitempty"`
}
type customerBuilder builder.Builder
func (b customerBuilder) Build() Case {
  return builder.GetStruct(b).(Customer)
}
func (b caseBuilder) SetStringField(field string,value string) customerBuilder {
  return builder.Set(b, field, &value).(customerBuilder)
}
var CustomerBuilder = builder.Register(customerBuilder{}, Customer{}).(customerBuilder)