[#17] Add morph client metrics

Signed-off-by: Alejandro Lopez <a.lopez@yadro.com>

pkg/morph/client/client.go

@@ -11,6 +11,7 @@ import (
 
 	"git.frostfs.info/TrueCloudLab/frostfs-node/internal/logs"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/metrics"
+	morphmetrics "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/metrics"
 	"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/logger"
 	lru "github.com/hashicorp/golang-lru/v2"
 	"github.com/nspcc-dev/neo-go/pkg/core/native/noderoles"
@@ -48,7 +49,8 @@ import (
 type Client struct {
 	cache cache
 
-	logger *logger.Logger // logging component
+	logger  *logger.Logger // logging component
+	metrics morphmetrics.Register
 
 	client   *rpcclient.WSClient // neo-go websocket client
 	rpcActor *actor.Actor        // neo-go RPC actor
@@ -172,6 +174,12 @@ func wrapFrostFSError(err error) error {
 // Invoke invokes contract method by sending transaction into blockchain.
 // Supported args types: int64, string, util.Uint160, []byte and bool.
 func (c *Client) Invoke(contract util.Uint160, fee fixedn.Fixed8, method string, args ...any) error {
+	start := time.Now()
+	success := false
+	defer func() {
+		c.metrics.ObserveInvoke("Invoke", contract.String(), method, success, time.Since(start))
+	}()
+
 	c.switchLock.RLock()
 	defer c.switchLock.RUnlock()
 
@@ -189,6 +197,7 @@ func (c *Client) Invoke(contract util.Uint160, fee fixedn.Fixed8, method string,
 		zap.Uint32("vub", vub),
 		zap.Stringer("tx_hash", txHash.Reverse()))
 
+	success = true
 	return nil
 }
 
@@ -196,6 +205,12 @@ func (c *Client) Invoke(contract util.Uint160, fee fixedn.Fixed8, method string,
 // If cb returns an error, the session is closed and this error is returned as-is.
 // If the remove neo-go node does not support sessions, `unwrap.ErrNoSessionID` is returned.
 func (c *Client) TestInvokeIterator(cb func(stackitem.Item) error, contract util.Uint160, method string, args ...interface{}) error {
+	start := time.Now()
+	success := false
+	defer func() {
+		c.metrics.ObserveInvoke("TestInvokeIterator", contract.String(), method, success, time.Since(start))
+	}()
+
 	c.switchLock.RLock()
 	defer c.switchLock.RUnlock()
 
@@ -228,12 +243,20 @@ func (c *Client) TestInvokeIterator(cb func(stackitem.Item) error, contract util
 		}
 		items, err = c.rpcActor.TraverseIterator(sid, &r, 0)
 	}
+
+	success = err == nil
 	return err
 }
 
 // TestInvoke invokes contract method locally in neo-go node. This method should
 // be used to read data from smart-contract.
 func (c *Client) TestInvoke(contract util.Uint160, method string, args ...any) (res []stackitem.Item, err error) {
+	start := time.Now()
+	success := false
+	defer func() {
+		c.metrics.ObserveInvoke("TestInvoke", contract.String(), method, success, time.Since(start))
+	}()
+
 	c.switchLock.RLock()
 	defer c.switchLock.RUnlock()
 
@@ -250,6 +273,7 @@ func (c *Client) TestInvoke(contract util.Uint160, method string, args ...any) (
 		return nil, wrapFrostFSError(&notHaltStateError{state: val.State, exception: val.FaultException})
 	}
 
+	success = true
 	return val.Stack, nil
 }
 
@@ -512,6 +536,10 @@ func (c *Client) NotificationChannel() <-chan rpcclient.Notification {
 	return c.client.Notifications //lint:ignore SA1019 waits for neo-go v0.102.0 https://github.com/nspcc-dev/neo-go/pull/2980
 }
 
+func (c *Client) Metrics() morphmetrics.Register {
+	return c.metrics
+}
+
 func (c *Client) setActor(act *actor.Actor) {
 	c.rpcActor = act
 	c.gasToken = nep17.New(act, gas.Hash)