micro/api/handler/options.go
Vasiliy Tolstov 02839cfba5
api/handler: use http.MaxBytesReader and buffer pool (#1415)
* api/handler: use http.MaxBytesReader

protect api handlers from OOM cases

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
2020-03-26 14:29:28 +03:00

72 lines
1.3 KiB
Go

package handler
import (
"github.com/micro/go-micro/v2"
"github.com/micro/go-micro/v2/api/router"
)
var (
DefaultMaxRecvSize int64 = 1024 * 1024 * 10 // 10Mb
)
type Options struct {
MaxRecvSize int64
Namespace string
Router router.Router
Service micro.Service
}
type Option func(o *Options)
// NewOptions fills in the blanks
func NewOptions(opts ...Option) Options {
var options Options
for _, o := range opts {
o(&options)
}
// create service if its blank
if options.Service == nil {
WithService(micro.NewService())(&options)
}
// set namespace if blank
if len(options.Namespace) == 0 {
WithNamespace("go.micro.api")(&options)
}
if options.MaxRecvSize == 0 {
options.MaxRecvSize = DefaultMaxRecvSize
}
return options
}
// WithNamespace specifies the namespace for the handler
func WithNamespace(s string) Option {
return func(o *Options) {
o.Namespace = s
}
}
// WithRouter specifies a router to be used by the handler
func WithRouter(r router.Router) Option {
return func(o *Options) {
o.Router = r
}
}
// WithService specifies a micro.Service
func WithService(s micro.Service) Option {
return func(o *Options) {
o.Service = s
}
}
// WithmaxRecvSize specifies max body size
func WithMaxRecvSize(size int64) Option {
return func(o *Options) {
o.MaxRecvSize = size
}
}