graphql, node, rpc: fix typos in comments

graphql/service.go

@@ -35,7 +35,7 @@ type Service struct {
 	cors     []string         // Allowed CORS domains
 	vhosts   []string         // Recognised vhosts
 	timeouts rpc.HTTPTimeouts // Timeout settings for HTTP requests.
-	backend  ethapi.Backend   // The backend that queries will operate onn.
+	backend  ethapi.Backend   // The backend that queries will operate on.
 	handler  http.Handler     // The `http.Handler` used to answer queries.
 	listener net.Listener     // The listening socket.
 }

node/node.go

@@ -158,7 +158,7 @@ func (n *Node) Register(constructor ServiceConstructor) error {
 	return nil
 }
 
-// Start create a live P2P node and starts running it.
+// Start creates a live P2P node and starts running it.
 func (n *Node) Start() error {
 	n.lock.Lock()
 	defer n.lock.Unlock()
@@ -235,7 +235,7 @@ func (n *Node) Start() error {
 		// Mark the service started for potential cleanup
 		started = append(started, kind)
 	}
-	// Lastly start the configured RPC interfaces
+	// Lastly, start the configured RPC interfaces
 	if err := n.startRPC(services); err != nil {
 		for _, service := range services {
 			service.Stop()
@@ -274,7 +274,7 @@ func (n *Node) openDataDir() error {
 	return nil
 }
 
-// startRPC is a helper method to start all the various RPC endpoint during node
+// startRPC is a helper method to start all the various RPC endpoints during node
 // startup. It's not meant to be called at any time afterwards as it makes certain
 // assumptions about the state of the node.
 func (n *Node) startRPC(services map[reflect.Type]Service) error {

rpc/endpoints.go

@@ -103,7 +103,6 @@ func StartWSEndpoint(endpoint string, apis []API, modules []string, wsOrigins []
 	}
 	go NewWSServer(wsOrigins, handler).Serve(listener)
 	return listener, handler, err
-
 }
 
 // StartIPCEndpoint starts an IPC endpoint.

rpc/http.go

@@ -250,8 +250,8 @@ func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		http.Error(w, err.Error(), code)
 		return
 	}
-	// All checks passed, create a codec that reads direct from the request body
-	// until EOF, write the response to w, and order the server to process a
+	// All checks passed, create a codec that reads directly from the request body
+	// until EOF, writes the response to w, and orders the server to process a
 	// single request.
 	ctx := r.Context()
 	ctx = context.WithValue(ctx, "remote", r.RemoteAddr)

rpc/subscription.go

@@ -153,7 +153,7 @@ func (n *Notifier) takeSubscription() *Subscription {
 	return n.sub
 }
 
-// acticate is called after the subscription ID was sent to client. Notifications are
+// activate is called after the subscription ID was sent to client. Notifications are
 // buffered before activation. This prevents notifications being sent to the client before
 // the subscription ID is sent to the client.
 func (n *Notifier) activate() error {
@@ -179,7 +179,7 @@ func (n *Notifier) send(sub *Subscription, data json.RawMessage) error {
 	})
 }
 
-// A Subscription is created by a notifier and tight to that notifier. The client can use
+// A Subscription is created by a notifier and tied to that notifier. The client can use
 // this subscription to wait for an unsubscribe request for the client, see Err().
 type Subscription struct {
 	ID        ID