frostfs-node/pkg/services/object/head/remote.go

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package headsvc
import (
"context"
"crypto/ecdsa"
"github.com/nspcc-dev/neofs-api-go/pkg/client"
"github.com/nspcc-dev/neofs-node/pkg/core/object"
"github.com/nspcc-dev/neofs-node/pkg/network"
"github.com/pkg/errors"
)
type remoteHeader struct {
key *ecdsa.PrivateKey
node *network.Address
}
func (h *remoteHeader) head(ctx context.Context, prm *Prm, handler func(*object.Object)) error {
addr := h.node.NetAddr()
c, err := client.New(h.key,
client.WithAddress(addr),
)
if err != nil {
return errors.Wrapf(err, "(%T) could not create SDK client %s", h, addr)
}
p := new(client.ObjectHeaderParams).
WithAddress(prm.addr)
if prm.short {
p = p.WithMainFields()
}
hdr, err := c.GetObjectHeader(ctx, p,
client.WithTTL(1), // FIXME: use constant
)
if err != nil {
return errors.Wrapf(err, "(%T) could not head object in %s", h, addr)
}
handler(object.NewFromSDK(hdr))
return nil
}