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options.go
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options.go
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// Package proxy is a transparent proxy built on the micro/server
package proxy
import (
"github.com/unistack-org/micro/v3/client"
"github.com/unistack-org/micro/v3/logger"
"github.com/unistack-org/micro/v3/meter"
"github.com/unistack-org/micro/v3/router"
"github.com/unistack-org/micro/v3/tracer"
)
// Options for proxy
type Options struct {
// Tracer used for tracing
Tracer tracer.Tracer
// Client for communication
Client client.Client
// Router for routing
Router router.Router
// Logger used for logging
Logger logger.Logger
// Meter used for metrics
Meter meter.Meter
// Links holds the communication links
Links map[string]client.Client
// Endpoint holds the destination address
Endpoint string
}
// Option func signature
type Option func(o *Options)
// NewOptions returns new options struct that filled by opts
func NewOptions(opts ...Option) Options {
options := Options{
Logger: logger.DefaultLogger,
Meter: meter.DefaultMeter,
Tracer: tracer.DefaultTracer,
}
for _, o := range opts {
o(&options)
}
return options
}
// WithEndpoint sets a proxy endpoint
func WithEndpoint(e string) Option {
return func(o *Options) {
o.Endpoint = e
}
}
// WithClient sets the client
func WithClient(c client.Client) Option {
return func(o *Options) {
o.Client = c
}
}
// WithRouter specifies the router to use
func WithRouter(r router.Router) Option {
return func(o *Options) {
o.Router = r
}
}
// WithLogger specifies the logger to use
func WithLogger(l logger.Logger) Option {
return func(o *Options) {
o.Logger = l
}
}
// WithMeter specifies the meter to use
func WithMeter(m meter.Meter) Option {
return func(o *Options) {
o.Meter = m
}
}
// WithLink sets a link for outbound requests
func WithLink(name string, c client.Client) Option {
return func(o *Options) {
if o.Links == nil {
o.Links = make(map[string]client.Client)
}
o.Links[name] = c
}
}
// Tracer to be used for tracing
func Tracer(t tracer.Tracer) Option {
return func(o *Options) {
o.Tracer = t
}
}