frostfs-api-go/pkg/client/response.go
Leonard Lyubich da89c2b71f [#337] client: Add option to specify callback of response information
There is a need to analyze some response information in API client.

Define `ResponseMetaInfo` structure of response information. Add
`WithResponseInfoHandler` client option which allows to set the response
info callback. The callback is called right after any response is received.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-09-28 18:15:29 +03:00

37 lines
1 KiB
Go

package client
import (
"github.com/nspcc-dev/neofs-api-go/v2/session"
)
// ResponseMetaInfo groups meta information about any NeoFS API response.
type ResponseMetaInfo struct {
key []byte
}
// ResponderKey returns responder's public key in a binary format.
//
// Result must not be mutated.
func (x ResponseMetaInfo) ResponderKey() []byte {
return x.key
}
// WithResponseInfoHandler allows to specify handler of response meta information for the all Client operations.
// The handler is called right after the response is received. Client returns handler's error immediately.
func WithResponseInfoHandler(f func(ResponseMetaInfo) error) Option {
return func(opts *clientOptions) {
opts.cbRespInfo = f
}
}
func (c *clientImpl) handleResponseInfoV2(opts *callOptions, resp interface {
GetVerificationHeader() *session.ResponseVerificationHeader
}) error {
if c.opts.cbRespInfo == nil {
return nil
}
return c.opts.cbRespInfo(ResponseMetaInfo{
key: resp.GetVerificationHeader().GetBodySignature().GetKey(),
})
}