frostfs-api-go/rpc/client/connect.go
Pavel Karpy 89aede1fb3 [#286] client: Add TLS options
Add `WithTLSConfig` option to client.
If it is not nil then client will
try to open secured connection.

Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
2021-05-24 16:56:59 +03:00

51 lines
950 B
Go

package client
import (
"context"
"errors"
"github.com/nspcc-dev/neofs-api-go/rpc/grpc"
grpcstd "google.golang.org/grpc"
"google.golang.org/grpc/credentials"
)
func (c *Client) createGRPCClient() (err error) {
c.gRPCClientOnce.Do(func() {
if err = c.openGRPCConn(); err != nil {
return
}
c.gRPCClient = grpc.New(grpc.WithClientConnection(c.conn))
})
return
}
var errInvalidEndpoint = errors.New("invalid endpoint options")
func (c *Client) openGRPCConn() error {
if c.conn != nil {
return nil
}
if c.addr == "" {
return errInvalidEndpoint
}
var err error
var credOpt grpcstd.DialOption
if c.tlsCfg != nil {
creds := credentials.NewTLS(c.tlsCfg)
credOpt = grpcstd.WithTransportCredentials(creds)
} else {
credOpt = grpcstd.WithInsecure()
}
dialCtx, cancel := context.WithTimeout(context.Background(), c.dialTimeout)
c.conn, err = grpcstd.DialContext(dialCtx, c.addr, credOpt)
cancel()
return err
}