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name.go
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name.go
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package options
import (
"time"
)
const (
DefaultNameValidTime = 24 * time.Hour
)
type NamePublishSettings struct {
ValidTime time.Duration
Key string
}
type NameResolveSettings struct {
Recursive bool
Local bool
Cache bool
}
type NamePublishOption func(*NamePublishSettings) error
type NameResolveOption func(*NameResolveSettings) error
func NamePublishOptions(opts ...NamePublishOption) (*NamePublishSettings, error) {
options := &NamePublishSettings{
ValidTime: DefaultNameValidTime,
Key: "self",
}
for _, opt := range opts {
err := opt(options)
if err != nil {
return nil, err
}
}
return options, nil
}
func NameResolveOptions(opts ...NameResolveOption) (*NameResolveSettings, error) {
options := &NameResolveSettings{
Recursive: false,
Local: false,
Cache: true,
}
for _, opt := range opts {
err := opt(options)
if err != nil {
return nil, err
}
}
return options, nil
}
type nameOpts struct{}
var Name nameOpts
// ValidTime is an option for Name.Publish which specifies for how long the
// entry will remain valid. Default value is 24h
func (nameOpts) ValidTime(validTime time.Duration) NamePublishOption {
return func(settings *NamePublishSettings) error {
settings.ValidTime = validTime
return nil
}
}
// Key is an option for Name.Publish which specifies the key to use for
// publishing. Default value is "self" which is the node's own PeerID.
// The key parameter must be either PeerID or keystore key alias.
//
// You can use KeyAPI to list and generate more names and their respective keys.
func (nameOpts) Key(key string) NamePublishOption {
return func(settings *NamePublishSettings) error {
settings.Key = key
return nil
}
}
// Recursive is an option for Name.Resolve which specifies whether to perform a
// recursive lookup. Default value is false
func (nameOpts) Recursive(recursive bool) NameResolveOption {
return func(settings *NameResolveSettings) error {
settings.Recursive = recursive
return nil
}
}
// Local is an option for Name.Resolve which specifies if the lookup should be
// offline. Default value is false
func (nameOpts) Local(local bool) NameResolveOption {
return func(settings *NameResolveSettings) error {
settings.Local = local
return nil
}
}
// Cache is an option for Name.Resolve which specifies if cache should be used.
// Default value is true
func (nameOpts) Cache(cache bool) NameResolveOption {
return func(settings *NameResolveSettings) error {
settings.Cache = cache
return nil
}
}