/
options.go
109 lines (91 loc) · 2.24 KB
/
options.go
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package grpc
import (
"time"
"github.com/spf13/pflag"
)
const DefaultPort = "50051"
const DefaultGracePeriod = 3 * time.Second
const DefaultHealthEnabled = true
const DefaultLoggingInterceptor = true
const DefaultRequestIdInterceptor = true
const DefaultPrometheusInterceptor = true
type enabledInterceptor struct {
logging bool
requestId bool
prometheus bool
}
type Options struct {
Port string
Name string
ShutdownGracePeriod time.Duration
HealthServerEnabled bool
enabledUnaryInterceptor enabledInterceptor
}
func Port(addr string) Option {
return func(opts *Options) {
opts.Port = addr
}
}
func Name(name string) Option {
return func(opts *Options) {
opts.Name = name
}
}
func ShutdownGracePeriod(duration time.Duration) Option {
return func(opts *Options) {
opts.ShutdownGracePeriod = duration
}
}
func DisableHealthServer() Option {
return func(opts *Options) {
opts.HealthServerEnabled = false
}
}
func DisableLoggingInterceptor() Option {
return func(opts *Options) {
opts.enabledUnaryInterceptor.logging = false
}
}
func DisableRequestIdInterceptor() Option {
return func(opts *Options) {
opts.enabledUnaryInterceptor.requestId = false
}
}
func DisablePrometheusInterceptor() Option {
return func(opts *Options) {
opts.enabledUnaryInterceptor.prometheus = false
}
}
func newOptions(opts ...Option) Options {
opt := Options{
Port: DefaultPort,
Name: "default",
ShutdownGracePeriod: DefaultGracePeriod,
HealthServerEnabled: DefaultHealthEnabled,
enabledUnaryInterceptor: enabledInterceptor{
logging: DefaultLoggingInterceptor,
requestId: DefaultRequestIdInterceptor,
prometheus: DefaultPrometheusInterceptor,
},
}
for _, o := range opts {
o(&opt)
}
return opt
}
// Flags is a convenience function to quickly add the gRPC server options as CLI flags
// Implements the cli.FlagProvider type
func Flags() *pflag.FlagSet {
fs := pflag.NewFlagSet("grpc-server", pflag.ContinueOnError)
fs.String(
PortConfigKey,
DefaultPort,
"the port on which the gRPC server is listening on",
)
fs.Duration(
GracePeriodConfigKey,
DefaultGracePeriod,
"grace period after which the server shutdown is terminated",
)
return fs
}