align internal interface

go/obsclient/authclient.go

@@ -192,7 +192,7 @@ func (ac *AuthObsClient) BalanceAt(ctx context.Context, blockNumber *big.Int) (*
 }
 
 func (ac *AuthObsClient) SubscribeFilterLogs(ctx context.Context, filterCriteria common.FilterCriteria, ch chan common.IDAndLog) (ethereum.Subscription, error) {
-	return ac.rpcClient.Subscribe(ctx, nil, rpc.SubscribeNamespace, ch, rpc.SubscriptionTypeLogs, filterCriteria)
+	return ac.rpcClient.Subscribe(ctx, rpc.SubscribeNamespace, ch, rpc.SubscriptionTypeLogs, filterCriteria)
 }
 
 func (ac *AuthObsClient) GetLogs(ctx context.Context, filterCriteria common.FilterCriteria) ([]*types.Log, error) {

go/obsclient/test_util.go

@@ -23,7 +23,7 @@ func (m *rpcClientMock) CallContext(ctx context.Context, result interface{}, met
 	return arguments.Error(0)
 }
 
-func (m *rpcClientMock) Subscribe(context.Context, interface{}, string, interface{}, ...interface{}) (*rpc.ClientSubscription, error) {
+func (m *rpcClientMock) Subscribe(context.Context, string, interface{}, ...interface{}) (*rpc.ClientSubscription, error) {
 	panic("not implemented")
 }
 

go/rpc/client.go

@@ -55,7 +55,7 @@ type Client interface {
 	// CallContext If the context is canceled before the call has successfully returned, CallContext returns immediately.
 	CallContext(ctx context.Context, result interface{}, method string, args ...interface{}) error
 	// Subscribe creates a subscription to the Obscuro host.
-	Subscribe(ctx context.Context, result interface{}, namespace string, channel interface{}, args ...interface{}) (*rpc.ClientSubscription, error)
+	Subscribe(ctx context.Context, namespace string, channel interface{}, args ...interface{}) (*rpc.ClientSubscription, error)
 	// Stop closes the client.
 	Stop()
 }

go/rpc/encrypted_client.go

@@ -68,14 +68,8 @@ func NewEncRPCClient(client Client, viewingKey *viewingkey.ViewingKey, logger ge
 	return encClient, nil
 }
 
-func (c *EncRPCClient) Client() *gethrpc.Client {
-	switch backingClient := c.obscuroClient.(type) {
-	case *NetworkClient:
-		return backingClient.RpcClient
-	default:
-		// not supported
-		return nil
-	}
+func (c *EncRPCClient) BackingClient() Client {
+	return c.obscuroClient
 }
 
 // Call handles JSON rpc requests without a context - see CallContext for details
@@ -101,7 +95,7 @@ func (c *EncRPCClient) CallContext(ctx context.Context, result interface{}, meth
 	return c.executeSensitiveCall(ctx, result, method, args...)
 }
 
-func (c *EncRPCClient) Subscribe(ctx context.Context, _ interface{}, namespace string, ch interface{}, args ...interface{}) (*gethrpc.ClientSubscription, error) {
+func (c *EncRPCClient) Subscribe(ctx context.Context, namespace string, ch interface{}, args ...interface{}) (*gethrpc.ClientSubscription, error) {
 	if len(args) == 0 {
 		return nil, fmt.Errorf("subscription did not specify its type")
 	}
@@ -131,7 +125,7 @@ func (c *EncRPCClient) Subscribe(ctx context.Context, _ interface{}, namespace s
 		return nil, fmt.Errorf("expected a channel of type `chan types.Log`, got %T", ch)
 	}
 	clientChannel := make(chan common.IDAndEncLog)
-	subscriptionToObscuro, err := c.obscuroClient.Subscribe(ctx, nil, namespace, clientChannel, subscriptionType, encryptedParams)
+	subscriptionToObscuro, err := c.obscuroClient.Subscribe(ctx, namespace, clientChannel, subscriptionType, encryptedParams)
 	if err != nil {
 		return nil, err
 	}

go/rpc/network_client.go

@@ -1,27 +1,13 @@
 package rpc
 
 import (
-	"context"
-	"fmt"
-	"strings"
-
 	"github.com/ten-protocol/go-ten/go/common/viewingkey"
 	"github.com/ten-protocol/go-ten/lib/gethfork/rpc"
 	gethrpc "github.com/ten-protocol/go-ten/lib/gethfork/rpc"
 
 	gethlog "github.com/ethereum/go-ethereum/log"
 )
 
-const (
-	ws   = "ws://"
-	http = "http://"
-)
-
-// NetworkClient is a Client implementation that wraps Geth's rpc.Client to make calls to the obscuro node
-type NetworkClient struct {
-	RpcClient *rpc.Client
-}
-
 // NewEncNetworkClient returns a network RPC client with Viewing Key encryption/decryption
 func NewEncNetworkClient(rpcAddress string, viewingKey *viewingkey.ViewingKey, logger gethlog.Logger) (*EncRPCClient, error) {
 	rpcClient, err := NewNetworkClient(rpcAddress)
@@ -36,7 +22,7 @@ func NewEncNetworkClient(rpcAddress string, viewingKey *viewingkey.ViewingKey, l
 }
 
 func NewEncNetworkClientFromConn(connection *gethrpc.Client, viewingKey *viewingkey.ViewingKey, logger gethlog.Logger) (*EncRPCClient, error) {
-	encClient, err := NewEncRPCClient(&NetworkClient{RpcClient: connection}, viewingKey, logger)
+	encClient, err := NewEncRPCClient(connection, viewingKey, logger)
 	if err != nil {
 		return nil, err
 	}
@@ -45,34 +31,5 @@ func NewEncNetworkClientFromConn(connection *gethrpc.Client, viewingKey *viewing
 
 // NewNetworkClient returns a client that can make RPC calls to an Obscuro node
 func NewNetworkClient(address string) (Client, error) {
-	if !strings.HasPrefix(address, http) && !strings.HasPrefix(address, ws) {
-		return nil, fmt.Errorf("clients for Obscuro only support the %s and %s protocols", http, ws)
-	}
-
-	rpcClient, err := rpc.Dial(address)
-	if err != nil {
-		return nil, fmt.Errorf("could not create RPC client on %s. Cause: %w", address, err)
-	}
-
-	return &NetworkClient{
-		RpcClient: rpcClient,
-	}, nil
-}
-
-// Call handles JSON rpc requests, delegating to the geth RPC client
-// The result must be a pointer so that package json can unmarshal into it. You can also pass nil, in which case the result is ignored.
-func (c *NetworkClient) Call(result interface{}, method string, args ...interface{}) error {
-	return c.RpcClient.Call(result, method, args...)
-}
-
-func (c *NetworkClient) CallContext(ctx context.Context, result interface{}, method string, args ...interface{}) error {
-	return c.RpcClient.CallContext(ctx, result, method, args...)
-}
-
-func (c *NetworkClient) Subscribe(ctx context.Context, _ interface{}, namespace string, channel interface{}, args ...interface{}) (*gethrpc.ClientSubscription, error) {
-	return c.RpcClient.Subscribe(ctx, namespace, channel, args...)
-}
-
-func (c *NetworkClient) Stop() {
-	c.RpcClient.Close()
+	return rpc.Dial(address)
 }

integration/simulation/p2p/in_mem_obscuro_client.go

@@ -116,7 +116,7 @@ func (c *inMemObscuroClient) CallContext(_ context.Context, result interface{},
 	return c.Call(result, method, args...) //nolint: contextcheck
 }
 
-func (c *inMemObscuroClient) Subscribe(context.Context, interface{}, string, interface{}, ...interface{}) (*gethrpc.ClientSubscription, error) {
+func (c *inMemObscuroClient) Subscribe(context.Context, string, interface{}, ...interface{}) (*gethrpc.ClientSubscription, error) {
 	panic("not implemented")
 }
 

lib/gethfork/rpc/client.go

@@ -116,6 +116,9 @@ type clientConn struct {
 	handler *handler
 }
 
+// Stop closes the client.
+func (c *Client) Stop() {}
+
 func (c *Client) newClientConn(conn ServerCodec) *clientConn {
 	ctx := context.Background()
 	ctx = context.WithValue(ctx, clientContextKey{}, c)
@@ -506,6 +509,7 @@ func (c *Client) ShhSubscribe(ctx context.Context, channel interface{}, args ...
 // before considering the subscriber dead. The subscription Err channel will receive
 // ErrSubscriptionQueueOverflow. Use a sufficiently large buffer on the channel or ensure
 // that the channel usually has at least one reader to prevent this issue.
+// Subscribe creates a subscription to the Obscuro host.
 func (c *Client) Subscribe(ctx context.Context, namespace string, channel interface{}, args ...interface{}) (*ClientSubscription, error) {
 	// Check type of channel first.
 	chanVal := reflect.ValueOf(channel)

tools/walletextension/rpcapi/filter_api.go

@@ -72,7 +72,7 @@ func (api *FilterAPI) Logs(ctx context.Context, crit common.FilterCriteria) (*rp
 		connections = append(connections, rpcWSClient)
 
 		inCh := make(chan common.IDAndLog)
-		backendSubscription, err := rpcWSClient.Subscribe(ctx, nil, "eth", inCh, "logs", crit)
+		backendSubscription, err := rpcWSClient.Subscribe(ctx, "eth", inCh, "logs", crit)
 		if err != nil {
 			fmt.Printf("could not connect to backend %s", err)
 			return nil, err
@@ -190,7 +190,7 @@ func handleUnsubscribe(connectionSub *rpc.Subscription, backendSubscriptions []*
 		backendSub.Unsubscribe()
 	}
 	for _, connection := range connections {
-		_ = returnConn(p, connection.Client())
+		_ = returnConn(p, connection.BackingClient())
 	}
 }
 

tools/walletextension/rpcapi/utils.go

@@ -257,7 +257,7 @@ func conn(p *pool.ObjectPool, account *GWAccount, logger gethlog.Logger) (*tenrp
 	return encClient, nil
 }
 
-func returnConn(p *pool.ObjectPool, conn *rpc.Client) error {
+func returnConn(p *pool.ObjectPool, conn tenrpc.Client) error {
 	return p.ReturnObject(context.Background(), conn)
 }
 
@@ -266,7 +266,7 @@ func withEncRPCConnection[R any](w *Services, acct *GWAccount, execute func(*ten
 	if err != nil {
 		return nil, fmt.Errorf("could not connect to backed. Cause: %w", err)
 	}
-	defer returnConn(w.rpcHTTPConnPool, rpcClient.Client())
+	defer returnConn(w.rpcHTTPConnPool, rpcClient.BackingClient())
 	return execute(rpcClient)
 }
 

tools/walletextension/rpcapi/wallet_extension.go

@@ -7,22 +7,21 @@ import (
 	"fmt"
 	"time"
 
+	"github.com/ten-protocol/go-ten/go/obsclient"
+
 	pool "github.com/jolestar/go-commons-pool/v2"
 	gethrpc "github.com/ten-protocol/go-ten/lib/gethfork/rpc"
 
 	"github.com/status-im/keycard-go/hexutils"
 
 	"github.com/ten-protocol/go-ten/tools/walletextension/cache"
 
-	"github.com/ten-protocol/go-ten/go/obsclient"
-
 	gethcommon "github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/crypto/ecies"
 	gethlog "github.com/ethereum/go-ethereum/log"
 	"github.com/ten-protocol/go-ten/go/common/stopcontrol"
 	"github.com/ten-protocol/go-ten/go/common/viewingkey"
-	"github.com/ten-protocol/go-ten/go/rpc"
 	"github.com/ten-protocol/go-ten/tools/walletextension/common"
 	"github.com/ten-protocol/go-ten/tools/walletextension/storage"
 )
@@ -36,7 +35,6 @@ type Services struct {
 	FileLogger   gethlog.Logger
 	stopControl  *stopcontrol.StopControl
 	version      string
-	tenClient    *obsclient.ObsClient
 	Cache        cache.Cache
 	// the OG maintains a connection pool of rpc connections to underlying nodes
 	rpcHTTPConnPool *pool.ObjectPool
@@ -45,12 +43,6 @@ type Services struct {
 }
 
 func NewServices(hostAddrHTTP string, hostAddrWS string, storage storage.Storage, stopControl *stopcontrol.StopControl, version string, logger gethlog.Logger, config *common.Config) *Services {
-	rpcClient, err := rpc.NewNetworkClient(hostAddrHTTP)
-	if err != nil {
-		logger.Error(fmt.Errorf("could not create RPC client on %s. Cause: %w", hostAddrHTTP, err).Error())
-		panic(err)
-	}
-	newTenClient := obsclient.NewObsClient(rpcClient)
 	newFileLogger := common.NewFileLogger()
 	newGatewayCache, err := cache.NewCache(logger)
 	if err != nil {
@@ -85,8 +77,7 @@ func NewServices(hostAddrHTTP string, hostAddrWS string, storage storage.Storage
 		}, nil, nil, nil)
 
 	cfg := pool.NewDefaultPoolConfig()
-	cfg.MaxTotal = 100
-	cfg.MaxTotal = 50
+	cfg.MaxTotal = 100 // todo - what is the right number
 
 	return &Services{
 		HostAddrHTTP:    hostAddrHTTP,
@@ -96,7 +87,6 @@ func NewServices(hostAddrHTTP string, hostAddrWS string, storage storage.Storage
 		FileLogger:      newFileLogger,
 		stopControl:     stopControl,
 		version:         version,
-		tenClient:       newTenClient,
 		Cache:           newGatewayCache,
 		rpcHTTPConnPool: pool.NewObjectPool(context.Background(), factoryHTTP, cfg),
 		rpcWSConnPool:   pool.NewObjectPool(context.Background(), factoryWS, cfg),
@@ -223,7 +213,11 @@ func (w *Services) Version() string {
 }
 
 func (w *Services) GetTenNodeHealthStatus() (bool, error) {
-	return w.tenClient.Health()
+	res, err := withPlainRPCConnection[bool](w, func(client *gethrpc.Client) (*bool, error) {
+		res, err := obsclient.NewObsClient(client).Health()
+		return &res, err
+	})
+	return *res, err
 }
 
 func (w *Services) GenerateUserMessageToSign(encryptionToken []byte, formatsSlice []string) (string, error) {