micro/selector/options.go

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package selector
import "github.com/micro/go-micro/v2/router"
// Options used to configure a selector
type Options struct{}
// Option updates the options
type Option func(*Options)
// Filter the routes
type Filter func([]router.Route) []router.Route
// SelectOptions used to configure selection
type SelectOptions struct {
Filters []Filter
}
// SelectOption updates the select options
type SelectOption func(*SelectOptions)
// WithFilter adds a filter to the options
func WithFilter(f Filter) SelectOption {
return func(o *SelectOptions) {
o.Filters = append(o.Filters, f)
}
}
// NewSelectOptions parses select options
func NewSelectOptions(opts ...SelectOption) SelectOptions {
var options SelectOptions
for _, o := range opts {
o(&options)
}
if options.Filters == nil {
options.Filters = make([]Filter, 0)
}
return options
}