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https://gitlab.com/pulsechaincom/erigon-pulse.git
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007234b489
this pr adds CLI flag to allow the rpcdaemon to bind to a TCP port.
this is very useful if one wants to maintain a remote connection with
the rpcdaemon without using websocket. This is useful because a lot of
issues come with the websocket protocol (compression, max size, etc).
TCP socket gets around these things (it is just raw json over tcp
stream)
the rpc package already supports this, it was just a matter of adding
the bind.
try `echo
'{"jsonrpc":"2.0","method":"eth_blockNumber","id":"1","params":[""]}' |
nc localhost 8548` as a basic test
to test. Subscriptions are also working (idk how to send keepalives with
netcat)
the default rpc.(*Client).Dial method does not support TCP. I have not
included that in this PR. The code for such is as follow
```
// DialTCP create a new TCP client that connects to the given endpoint.
//
// The context is used for the initial connection establishment. It does not
// affect subsequent interactions with the client.
func DialTCP(ctx context.Context, endpoint string) (*Client, error) {
parsed, err := url.Parse(endpoint)
if err != nil {
return nil, err
}
ans := make(chan *Client)
errc := make(chan error)
go func() {
client, err := newClient(ctx, func(ctx context.Context) (ServerCodec, error) {
conn, err := net.Dial("tcp", parsed.Host)
if err != nil {
return nil, err
}
return NewCodec(conn), nil
})
if err != nil {
errc <- err
return
}
ans <- client
}()
select {
case err := <-errc:
return nil, err
case a := <-ans:
return a, nil
case <-ctx.Done():
return nil, ctx.Err()
}
}
// DialContext creates a new RPC client, just like Dial.
//
// The context is used to cancel or time out the initial connection establishment. It does
// not affect subsequent interactions with the client.
func DialContext(ctx context.Context, rawurl string) (*Client, error) {
u, err := url.Parse(rawurl)
if err != nil {
return nil, err
}
switch u.Scheme {
case "http", "https":
return DialHTTP(rawurl)
case "ws", "wss":
return DialWebsocket(ctx, rawurl, "")
case "tcp":
return DialTCP(ctx, rawurl)
case "stdio":
return DialStdIO(ctx)
case "":
return DialIPC(ctx, rawurl)
default:
return nil, fmt.Errorf("no known transport for URL scheme %q", u.Scheme)
}
}
```
let me know if you would like me to add this to the PR as well. the TCP
connection can then be established with `rpc.Dial("tcp://host:port")`
65 lines
2.0 KiB
Go
65 lines
2.0 KiB
Go
package httpcfg
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import (
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"time"
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"github.com/ledgerwatch/erigon-lib/common/datadir"
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"github.com/ledgerwatch/erigon-lib/kv/kvcache"
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"github.com/ledgerwatch/erigon/eth/ethconfig"
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"github.com/ledgerwatch/erigon/rpc/rpccfg"
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)
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type HttpCfg struct {
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Enabled bool
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PrivateApiAddr string
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WithDatadir bool // Erigon's database can be read by separated processes on same machine - in read-only mode - with full support of transactions. It will share same "OS PageCache" with Erigon process.
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DataDir string
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Dirs datadir.Dirs
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HttpListenAddress string
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AuthRpcHTTPListenAddress string
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TLSCertfile string
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TLSCACert string
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TLSKeyFile string
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HttpPort int
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AuthRpcPort int
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HttpCORSDomain []string
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HttpVirtualHost []string
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AuthRpcVirtualHost []string
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HttpCompression bool
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API []string
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Gascap uint64
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MaxTraces uint64
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WebsocketEnabled bool
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WebsocketCompression bool
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RpcAllowListFilePath string
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RpcBatchConcurrency uint
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RpcStreamingDisable bool
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DBReadConcurrency int
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TraceCompatibility bool // Bug for bug compatibility for trace_ routines with OpenEthereum
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TxPoolApiAddr string
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StateCache kvcache.CoherentConfig
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Snap ethconfig.Snapshot
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Sync ethconfig.Sync
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// GRPC server
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GRPCServerEnabled bool
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GRPCListenAddress string
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GRPCPort int
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GRPCHealthCheckEnabled bool
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// Raw TCP Server
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TCPServerEnabled bool
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TCPListenAddress string
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TCPPort int
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StarknetGRPCAddress string
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JWTSecretPath string // Engine API Authentication
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TraceRequests bool // Always trace requests in INFO level
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HTTPTimeouts rpccfg.HTTPTimeouts
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AuthRpcTimeouts rpccfg.HTTPTimeouts
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EvmCallTimeout time.Duration
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InternalCL bool
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LogDirVerbosity string
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LogDirPath string
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}
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