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client.go
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client.go
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// Copyright (C) 2023 Gobalsky Labs Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package admin
import (
"bytes"
"context"
"fmt"
"net"
"net/http"
"net/url"
"code.vegaprotocol.io/vega/core/types"
"github.com/gorilla/rpc/json"
)
// Client implement a socket client allowing to run simple RPC commands.
type Client struct {
cfg Config
http *http.Client
}
// NewClient returns a new instance of the RPC socket client.
func NewClient(config Config) *Client {
return &Client{
cfg: config,
http: &http.Client{
Transport: &http.Transport{
DialContext: func(_ context.Context, _, _ string) (net.Conn, error) {
return net.Dial("unix", config.Server.SocketPath)
},
},
},
}
}
func (s *Client) call(ctx context.Context, method string, args interface{}, reply interface{}) error {
req, err := json.EncodeClientRequest(method, args)
if err != nil {
return fmt.Errorf("failed to encode client JSON request: %w", err)
}
u := url.URL{
Scheme: "http",
Host: "unix",
Path: s.cfg.Server.HTTPPath,
}
httpReq, err := http.NewRequestWithContext(ctx, http.MethodPost, u.String(), bytes.NewReader(req))
if err != nil {
return fmt.Errorf("failed to create HTTP request: %w", err)
}
httpReq.Header.Set("Content-Type", "application/json")
resp, err := s.http.Do(httpReq)
if err != nil {
return fmt.Errorf("request failed: %w", err)
}
defer resp.Body.Close()
if err := json.DecodeClientResponse(resp.Body, reply); err != nil {
return fmt.Errorf("failed to decode client JSON response: %w", err)
}
return nil
}
func (s *Client) NodeWalletReload(ctx context.Context, chain string) (*NodeWalletReloadReply, error) {
var reply NodeWalletReloadReply
if err := s.call(ctx, "NodeWallet.Reload", NodeWalletArgs{Chain: chain}, &reply); err != nil {
return nil, fmt.Errorf("failed to call NodeWallet.Reload method: %w", err)
}
return &reply, nil
}
func (s *Client) NodeWalletShow(ctx context.Context, chain string) (*Wallet, error) {
var reply Wallet
if err := s.call(ctx, "NodeWallet.Show", NodeWalletArgs{Chain: chain}, &reply); err != nil {
return nil, fmt.Errorf("failed to call NodeWallet.Show method: %w", err)
}
return &reply, nil
}
func (s *Client) UpgradeStatus(ctx context.Context) (*types.UpgradeStatus, error) {
var reply types.UpgradeStatus
if err := s.call(ctx, "protocolupgrade.UpgradeStatus", nil, &reply); err != nil {
return nil, fmt.Errorf("failed to get protocol update status: %w", err)
}
return &reply, nil
}