[#180] sdk/client: Implement methods that attach tokens to Client

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

pkg/client/client.go

@@ -5,6 +5,7 @@ import (
 	"errors"
 
 	"github.com/nspcc-dev/neofs-api-go/pkg"
+	"github.com/nspcc-dev/neofs-api-go/pkg/token"
 )
 
 type (
@@ -13,6 +14,10 @@ type (
 		remoteNode TransportInfo
 
 		opts *clientOptions
+
+		sessionToken *token.SessionToken
+
+		bearerToken *token.BearerToken
 	}
 
 	TransportProtocol uint32

pkg/client/opts.go

@@ -62,6 +62,8 @@ func (c Client) defaultCallOptions() callOptions {
 	return callOptions{
 		ttl:     2,
 		version: pkg.SDKVersion(),
+		session: c.sessionToken,
+		bearer:  c.bearerToken,
 	}
 }
 

pkg/client/session.go

@@ -110,3 +110,19 @@ func v2SessionClientFromOptions(opts *clientOptions) (cli *v2session.Client, err
 
 	return cli, nil
 }
+
+// AttachSessionToken attaches session token to client.
+//
+// Provided token is attached to all requests without WithSession option.
+// Use WithSession(nil) option in order to send request without session token.
+func (c *Client) AttachSessionToken(token *token.SessionToken) {
+	c.sessionToken = token
+}
+
+// AttachBearerToken attaches bearer token to client.
+//
+// Provided bearer is attached to all requests without WithBearer option.
+// Use WithBearer(nil) option in order to send request without bearer token.
+func (c *Client) AttachBearerToken(token *token.BearerToken) {
+	c.bearerToken = token
+}