node: ZAP-native everywhere — kill every //go:build grpc path

The companion commit `7496606282` retired the gRPC fallback inside
vms/rpcchainvm/. This commit closes the loop by deleting every
remaining `//go:build grpc` file under node/, removing the dual-build
plumbing entirely. ZAP is the only wire protocol; there is no
`-tags=grpc` opt-in.

Per the "one and only one way to do everything" mandate, the
backwards-compat scaffolding (gRPC adapters, protoc stubs, connect-go
example handlers, OTLP gRPC exporter, x/sync gRPC sync engine,
keystore-over-gRPC client/server, rpcwarp gRPC signer, gRPC alias
reader) is removed forward-only — no aliases, no deprecation period.

Deletions (84 files):
  - proto/pb/{aliasreader,http,io,keystore,message,messenger,net,p2p,
    platformvm,rpcdb,sdk,sender,sharedmemory,signer,sync,
    validatorstate,vm,warp}/ — protoc stubs (entire tree)
  - proto/{p2p,platformvm,sync,vm}/*_grpc.go — gRPC type re-exports
  - db/rpcdb/{grpc_server,grpc_client,grpc_test}.go — rpcdb gRPC adapter
  - service/keystore/rpckeystore/ — keystore-over-gRPC (dead consumer)
  - x/sync/ — entire merkledb sync engine (100% gRPC-tagged)
  - internal/ids/rpcaliasreader/ — gRPC alias reader (dead consumer)
  - connectproto/ — connect-go XSVM ping handler scaffolding
  - vms/platformvm/warp/rpcwarp/{client,server}.go — gRPC warp signer
  - vms/platformvm/network/warp.go — protobuf-based warp justification
    handler (warp_zap.go retains the no-op verifier consumers expect)
  - vms/components/message/message_grpc.go + message_test.go
  - vms/example/xsvm/api/ping.go + vm_http_grpc.go + cmd/{run,xsvm}/
  - wallet/network/primary/examples/sign-l1-validator-* (5 dead
    example main packages)
  - trace/{exporter_grpc,exporter_type,exporter_type_test,noop,tracer}.go
    (OTLP gRPC exporter + duplicate Tracer types — trace_zap.go has
    the canonical Tracer interface + no-op tracer)
  - message/bft_grpc.go (Simplex BFT wrapper)

Edits (9 files): every surviving `_zap.go` drops its `//go:build !grpc`
constraint (the files are unconditional now) and drops stale
"ZAP version" / "ZAP mode" inline comments.

Doc updates:
  - LLM.md ZAP Transport section: remove the `-tags=grpc` opt-in
    language. Replace with "ZAP is the only wire protocol... there is
    one and only one way". Update Latest Tag to v1.26.31. Update the
    rpcdb topology section to reflect single-adapter state.

go.mod: connectrpc.com/connect, connectrpc.com/grpcreflect,
otlptracegrpc moved out of direct deps. google.golang.org/grpc +
protobuf demoted to indirect (still pulled transitively via luxfi/dex).

Verified:
  - `go build ./...` (default, no tags) clean
  - `go test ./db/rpcdb/... ./trace/... ./message/... ./vms/rpcchainvm/...
    ./vms/components/message/... ./vms/platformvm/network/...
    ./vms/example/xsvm/... ./service/keystore/... ./proto/...` clean
  - `grep -rln '//go:build grpc' --include='*.go' node/` returns zero
  - `grep -rln '//go:build !grpc' --include='*.go' node/` returns zero
  - `grep -rln 'google.golang.org/grpc' --include='*.go' node/` returns
    zero (only transitive deps remain in go.sum)

Pre-existing TestGraniteNetworkIDConfiguration failure in tests/ is
unrelated — fails on the parent commit too (verified via stash).
This commit is contained in:
Hanzo AI
2026-05-16 17:23:26 -07:00
parent 7496606282
commit 43f7aa2b03
95 changed files with 57 additions and 10480 deletions
@@ -1,124 +0,0 @@
//go:build grpc
// Copyright (C) 2019-2025, Lux Industries Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package main
import (
"context"
"log"
"net/netip"
"time"
"github.com/luxfi/metric"
"google.golang.org/protobuf/proto"
compression "github.com/luxfi/compress"
"github.com/luxfi/constants"
"github.com/luxfi/ids"
"github.com/luxfi/node/network/peer"
"github.com/luxfi/node/proto/pb/sdk"
"github.com/luxfi/node/vms/platformvm/warp"
"github.com/luxfi/node/vms/platformvm/warp/payload"
"github.com/luxfi/node/wallet/network/primary"
p2psdk "github.com/luxfi/p2p"
"github.com/luxfi/sdk/info"
p2pmessage "github.com/luxfi/node/message"
warpmessage "github.com/luxfi/node/vms/platformvm/warp/message"
)
type simpleInboundHandler struct{}
func (h *simpleInboundHandler) HandleInbound(_ context.Context, msg p2pmessage.InboundMessage) {
log.Printf("received %s: %s", msg.Op(), msg.Message())
}
func main() {
uri := primary.LocalAPIURI
validationID := ids.FromStringOrPanic("2DWCCiYb7xRTRHeKybkLY5ygRhZ1CWhtHgLuUCJBxktRnUYdCT")
infoClient := info.NewClient(uri)
networkID, err := infoClient.GetNetworkID(context.Background())
if err != nil {
log.Fatalf("failed to fetch network ID: %s\n", err)
}
l1ValidatorRegistration, err := warpmessage.NewL1ValidatorRegistration(
validationID,
true,
)
if err != nil {
log.Fatalf("failed to create L1ValidatorRegistration message: %s\n", err)
}
addressedCall, err := payload.NewAddressedCall(
nil,
l1ValidatorRegistration.Bytes(),
)
if err != nil {
log.Fatalf("failed to create AddressedCall message: %s\n", err)
}
unsignedWarp, err := warp.NewUnsignedMessage(
networkID,
constants.PlatformChainID,
addressedCall.Bytes(),
)
if err != nil {
log.Fatalf("failed to create unsigned Warp message: %s\n", err)
}
p, err := peer.StartTestPeer(
context.Background(),
netip.AddrPortFrom(
netip.AddrFrom4([4]byte{127, 0, 0, 1}),
9651,
),
networkID,
&simpleInboundHandler{},
)
if err != nil {
log.Fatalf("failed to start peer: %s\n", err)
}
messageBuilder, err := p2pmessage.NewCreator(
metric.NewNoOpRegistry(),
compression.TypeZstd,
time.Hour,
)
if err != nil {
log.Fatalf("failed to create message builder: %s\n", err)
}
appRequestPayload, err := proto.Marshal(&sdk.SignatureRequest{
Message: unsignedWarp.Bytes(),
})
if err != nil {
log.Fatalf("failed to marshal SignatureRequest: %s\n", err)
}
appRequest, err := messageBuilder.Request(
constants.PlatformChainID,
0,
time.Hour,
p2psdk.PrefixMessage(
p2psdk.ProtocolPrefix(0), // SignatureRequestHandlerID placeholder
appRequestPayload,
),
)
if err != nil {
log.Fatalf("failed to create Request: %s\n", err)
}
p.Send(context.Background(), appRequest)
time.Sleep(5 * time.Second)
p.StartClose()
err = p.AwaitClosed(context.Background())
if err != nil {
log.Fatalf("failed to close peer: %s\n", err)
}
}
@@ -1,141 +0,0 @@
//go:build grpc
// Copyright (C) 2019-2025, Lux Industries Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package main
import (
"context"
"log"
"net/netip"
"time"
"github.com/luxfi/metric"
"google.golang.org/protobuf/proto"
compression "github.com/luxfi/compress"
"github.com/luxfi/constants"
"github.com/luxfi/ids"
"github.com/luxfi/node/network/peer"
"github.com/luxfi/node/proto/platformvm"
"github.com/luxfi/node/proto/pb/sdk"
"github.com/luxfi/node/vms/platformvm/warp"
"github.com/luxfi/node/vms/platformvm/warp/payload"
"github.com/luxfi/node/wallet/network/primary"
p2psdk "github.com/luxfi/p2p"
"github.com/luxfi/sdk/info"
p2pmessage "github.com/luxfi/node/message"
warpmessage "github.com/luxfi/node/vms/platformvm/warp/message"
)
type simpleInboundHandler struct{}
func (h *simpleInboundHandler) HandleInbound(_ context.Context, msg p2pmessage.InboundMessage) {
log.Printf("received %s: %s", msg.Op(), msg.Message())
}
func main() {
uri := primary.LocalAPIURI
netID := ids.FromStringOrPanic("2DeHa7Qb6sufPkmQcFWG2uCd4pBPv9WB6dkzroiMQhd1NSRtof")
validationIndex := uint32(0)
infoClient := info.NewClient(uri)
networkID, err := infoClient.GetNetworkID(context.Background())
if err != nil {
log.Fatalf("failed to fetch network ID: %s\n", err)
}
validationID := netID.Append(validationIndex)
l1ValidatorRegistration, err := warpmessage.NewL1ValidatorRegistration(
validationID,
false,
)
if err != nil {
log.Fatalf("failed to create L1ValidatorRegistration message: %s\n", err)
}
addressedCall, err := payload.NewAddressedCall(
nil,
l1ValidatorRegistration.Bytes(),
)
if err != nil {
log.Fatalf("failed to create AddressedCall message: %s\n", err)
}
unsignedWarp, err := warp.NewUnsignedMessage(
networkID,
constants.PlatformChainID,
addressedCall.Bytes(),
)
if err != nil {
log.Fatalf("failed to create unsigned Warp message: %s\n", err)
}
justification := platformvm.L1ValidatorRegistrationJustification{
Preimage: &platformvm.L1ValidatorRegistrationJustification_ConvertNetworkToL1TxData{
ConvertNetworkToL1TxData: &platformvm.ChainIDIndex{
ChainId: netID[:],
Index: validationIndex,
},
},
}
justificationBytes, err := proto.Marshal(&justification)
if err != nil {
log.Fatalf("failed to create justification: %s\n", err)
}
p, err := peer.StartTestPeer(
context.Background(),
netip.AddrPortFrom(
netip.AddrFrom4([4]byte{127, 0, 0, 1}),
9651,
),
networkID,
&simpleInboundHandler{},
)
if err != nil {
log.Fatalf("failed to start peer: %s\n", err)
}
messageBuilder, err := p2pmessage.NewCreator(
metric.NewNoOpRegistry(),
compression.TypeZstd,
time.Hour,
)
if err != nil {
log.Fatalf("failed to create message builder: %s\n", err)
}
appRequestPayload, err := proto.Marshal(&sdk.SignatureRequest{
Message: unsignedWarp.Bytes(),
Justification: justificationBytes,
})
if err != nil {
log.Fatalf("failed to marshal SignatureRequest: %s\n", err)
}
appRequest, err := messageBuilder.Request(
constants.PlatformChainID,
0,
time.Hour,
p2psdk.PrefixMessage(
p2psdk.ProtocolPrefix(0), // SignatureRequestHandlerID placeholder
appRequestPayload,
),
)
if err != nil {
log.Fatalf("failed to create Request: %s\n", err)
}
p.Send(context.Background(), appRequest)
time.Sleep(5 * time.Second)
p.StartClose()
err = p.AwaitClosed(context.Background())
if err != nil {
log.Fatalf("failed to close peer: %s\n", err)
}
}
@@ -1,241 +0,0 @@
//go:build grpc
// Copyright (C) 2019-2025, Lux Industries Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package main
import (
"context"
"encoding/json"
"log"
"net/netip"
"time"
"github.com/luxfi/metric"
"google.golang.org/protobuf/proto"
compression "github.com/luxfi/compress"
consensuscore "github.com/luxfi/consensus/core"
"github.com/luxfi/constants"
"github.com/luxfi/ids"
"github.com/luxfi/node/network/peer"
"github.com/luxfi/node/proto/platformvm"
"github.com/luxfi/node/proto/pb/sdk"
"github.com/luxfi/node/vms/platformvm/warp"
"github.com/luxfi/node/vms/platformvm/warp/payload"
"github.com/luxfi/node/wallet/network/primary"
p2psdk "github.com/luxfi/p2p"
"github.com/luxfi/sdk/info"
p2pmessage "github.com/luxfi/node/message"
warpmessage "github.com/luxfi/node/vms/platformvm/warp/message"
)
// testInboundHandler implements router.InboundHandler for testing
type testInboundHandler struct{}
func (h *testInboundHandler) Gossip(_ context.Context, _ ids.NodeID, _ []byte) error { return nil }
func (h *testInboundHandler) Request(_ context.Context, _ ids.NodeID, _ uint32, _ time.Time, _ []byte) error {
return nil
}
func (h *testInboundHandler) RequestFailed(_ context.Context, _ ids.NodeID, _ uint32, _ *consensuscore.AppError) error {
return nil
}
func (h *testInboundHandler) Response(_ context.Context, _ ids.NodeID, _ uint32, _ []byte) error {
return nil
}
func (h *testInboundHandler) Error(_ context.Context, _ ids.NodeID, _ uint32, _ int32, _ string) error {
return nil
}
func (h *testInboundHandler) CrossChainRequest(_ context.Context, _ ids.ID, _ uint32, _ time.Time, _ []byte) error {
return nil
}
func (h *testInboundHandler) CrossChainRequestFailed(_ context.Context, _ ids.ID, _ uint32, _ *consensuscore.AppError) error {
return nil
}
func (h *testInboundHandler) CrossChainResponse(_ context.Context, _ ids.ID, _ uint32, _ []byte) error {
return nil
}
func (h *testInboundHandler) CrossChainError(_ context.Context, _ ids.ID, _ uint32, _ int32, _ string) error {
return nil
}
func (h *testInboundHandler) Disconnected(_ context.Context, _ ids.NodeID) error { return nil }
func (h *testInboundHandler) HandleInbound(_ context.Context, _ p2pmessage.InboundMessage) {}
var registerL1ValidatorJSON = []byte(`{
"netID": "2DeHa7Qb6sufPkmQcFWG2uCd4pBPv9WB6dkzroiMQhd1NSRtof",
"nodeID": "0x550f3c8f2ebd89e6a69adca196bea38a1b4d65bc",
"blsPublicKey": [
178,
119,
51,
152,
247,
239,
52,
16,
89,
246,
6,
11,
76,
81,
114,
139,
141,
251,
127,
202,
205,
177,
62,
75,
152,
207,
170,
120,
86,
213,
226,
226,
104,
135,
245,
231,
226,
223,
64,
19,
242,
246,
227,
12,
223,
23,
193,
219
],
"expiry": 1728331617,
"remainingBalanceOwner": {
"threshold": 0,
"addresses": null
},
"disableOwner": {
"threshold": 0,
"addresses": null
},
"weight": 1
}`)
func main() {
uri := primary.LocalAPIURI
infoClient := info.NewClient(uri)
networkID, err := infoClient.GetNetworkID(context.Background())
if err != nil {
log.Fatalf("failed to fetch network ID: %s\n", err)
}
var registerL1Validator warpmessage.RegisterL1Validator
err = json.Unmarshal(registerL1ValidatorJSON, &registerL1Validator)
if err != nil {
log.Fatalf("failed to unmarshal RegisterL1Validator message: %s\n", err)
}
err = warpmessage.Initialize(&registerL1Validator)
if err != nil {
log.Fatalf("failed to initialize RegisterL1Validator message: %s\n", err)
}
validationID := registerL1Validator.ValidationID()
l1ValidatorRegistration, err := warpmessage.NewL1ValidatorRegistration(
validationID,
false,
)
if err != nil {
log.Fatalf("failed to create L1ValidatorRegistration message: %s\n", err)
}
addressedCall, err := payload.NewAddressedCall(
nil,
l1ValidatorRegistration.Bytes(),
)
if err != nil {
log.Fatalf("failed to create AddressedCall message: %s\n", err)
}
unsignedWarp, err := warp.NewUnsignedMessage(
networkID,
constants.PlatformChainID,
addressedCall.Bytes(),
)
if err != nil {
log.Fatalf("failed to create unsigned Warp message: %s\n", err)
}
justification := platformvm.L1ValidatorRegistrationJustification{
Preimage: &platformvm.L1ValidatorRegistrationJustification_RegisterL1ValidatorMessage{
RegisterL1ValidatorMessage: registerL1Validator.Bytes(),
},
}
justificationBytes, err := proto.Marshal(&justification)
if err != nil {
log.Fatalf("failed to create justification: %s\n", err)
}
// Create inbound handler for messages
inboundHandler := &testInboundHandler{}
p, err := peer.StartTestPeer(
context.Background(),
netip.AddrPortFrom(
netip.AddrFrom4([4]byte{127, 0, 0, 1}),
9651,
),
networkID,
inboundHandler,
)
if err != nil {
log.Fatalf("failed to start peer: %s\n", err)
}
messageBuilder, err := p2pmessage.NewCreator(
metric.NewNoOpRegistry(),
compression.TypeZstd,
time.Hour,
)
if err != nil {
log.Fatalf("failed to create message builder: %s\n", err)
}
appRequestPayload, err := proto.Marshal(&sdk.SignatureRequest{
Message: unsignedWarp.Bytes(),
Justification: justificationBytes,
})
if err != nil {
log.Fatalf("failed to marshal SignatureRequest: %s\n", err)
}
appRequest, err := messageBuilder.Request(
constants.PlatformChainID,
0,
time.Hour,
p2psdk.PrefixMessage(
p2psdk.ProtocolPrefix(0), // SignatureRequestHandlerID placeholder,
appRequestPayload,
),
)
if err != nil {
log.Fatalf("failed to create Request: %s\n", err)
}
p.Send(context.Background(), appRequest)
time.Sleep(5 * time.Second)
p.StartClose()
err = p.AwaitClosed(context.Background())
if err != nil {
log.Fatalf("failed to close peer: %s\n", err)
}
}
@@ -1,131 +0,0 @@
//go:build grpc
// Copyright (C) 2019-2025, Lux Industries Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package main
import (
"context"
"encoding/json"
"log"
"net/netip"
"time"
"github.com/luxfi/metric"
"google.golang.org/protobuf/proto"
compression "github.com/luxfi/compress"
"github.com/luxfi/constants"
"github.com/luxfi/node/network/peer"
"github.com/luxfi/node/proto/pb/sdk"
"github.com/luxfi/node/vms/platformvm/warp"
"github.com/luxfi/node/vms/platformvm/warp/payload"
"github.com/luxfi/node/wallet/network/primary"
p2psdk "github.com/luxfi/p2p"
"github.com/luxfi/sdk/info"
p2pmessage "github.com/luxfi/node/message"
warpmessage "github.com/luxfi/node/vms/platformvm/warp/message"
)
var l1ValidatorWeightJSON = []byte(`{
"validationID": "2Y3ZZZXxpzm46geqVuqFXeSFVbeKihgrfeXRDaiF4ds6R2N8M5",
"nonce": 1,
"weight": 2
}`)
type simpleInboundHandler struct{}
func (h *simpleInboundHandler) HandleInbound(_ context.Context, msg p2pmessage.InboundMessage) {
log.Printf("received %s: %s", msg.Op(), msg.Message())
}
func main() {
uri := primary.LocalAPIURI
infoClient := info.NewClient(uri)
networkID, err := infoClient.GetNetworkID(context.Background())
if err != nil {
log.Fatalf("failed to fetch network ID: %s\n", err)
}
var l1ValidatorWeight warpmessage.L1ValidatorWeight
err = json.Unmarshal(l1ValidatorWeightJSON, &l1ValidatorWeight)
if err != nil {
log.Fatalf("failed to unmarshal L1ValidatorWeight message: %s\n", err)
}
err = warpmessage.Initialize(&l1ValidatorWeight)
if err != nil {
log.Fatalf("failed to initialize L1ValidatorWeight message: %s\n", err)
}
addressedCall, err := payload.NewAddressedCall(
nil,
l1ValidatorWeight.Bytes(),
)
if err != nil {
log.Fatalf("failed to create AddressedCall message: %s\n", err)
}
unsignedWarp, err := warp.NewUnsignedMessage(
networkID,
constants.PlatformChainID,
addressedCall.Bytes(),
)
if err != nil {
log.Fatalf("failed to create unsigned Warp message: %s\n", err)
}
p, err := peer.StartTestPeer(
context.Background(),
netip.AddrPortFrom(
netip.AddrFrom4([4]byte{127, 0, 0, 1}),
9651,
),
networkID,
&simpleInboundHandler{},
)
if err != nil {
log.Fatalf("failed to start peer: %s\n", err)
}
messageBuilder, err := p2pmessage.NewCreator(
metric.NewNoOpRegistry(),
compression.TypeZstd,
time.Hour,
)
if err != nil {
log.Fatalf("failed to create message builder: %s\n", err)
}
appRequestPayload, err := proto.Marshal(&sdk.SignatureRequest{
Message: unsignedWarp.Bytes(),
})
if err != nil {
log.Fatalf("failed to marshal SignatureRequest: %s\n", err)
}
appRequest, err := messageBuilder.Request(
constants.PlatformChainID,
0,
time.Hour,
p2psdk.PrefixMessage(
p2psdk.ProtocolPrefix(0), // SignatureRequestHandlerID placeholder,
appRequestPayload,
),
)
if err != nil {
log.Fatalf("failed to create Request: %s\n", err)
}
p.Send(context.Background(), appRequest)
time.Sleep(5 * time.Second)
p.StartClose()
err = p.AwaitClosed(context.Background())
if err != nil {
log.Fatalf("failed to close peer: %s\n", err)
}
}
@@ -1,123 +0,0 @@
//go:build grpc
// Copyright (C) 2019-2025, Lux Industries Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package main
import (
"context"
"log"
"net/netip"
"time"
"github.com/luxfi/metric"
"google.golang.org/protobuf/proto"
compression "github.com/luxfi/compress"
"github.com/luxfi/constants"
"github.com/luxfi/ids"
"github.com/luxfi/node/network/peer"
"github.com/luxfi/node/proto/pb/sdk"
"github.com/luxfi/node/vms/platformvm/warp"
"github.com/luxfi/node/vms/platformvm/warp/payload"
"github.com/luxfi/node/wallet/network/primary"
p2psdk "github.com/luxfi/p2p"
"github.com/luxfi/sdk/info"
p2pmessage "github.com/luxfi/node/message"
warpmessage "github.com/luxfi/node/vms/platformvm/warp/message"
)
type simpleInboundHandler struct{}
func (h *simpleInboundHandler) HandleInbound(_ context.Context, msg p2pmessage.InboundMessage) {
log.Printf("received %s: %s", msg.Op(), msg.Message())
}
func main() {
uri := primary.LocalAPIURI
netID := ids.FromStringOrPanic("2DeHa7Qb6sufPkmQcFWG2uCd4pBPv9WB6dkzroiMQhd1NSRtof")
conversionID := ids.FromStringOrPanic("28tfqwucuoH7oWxmVYDVQ2C1ehdYecF5mzwNmX2t1dTu1S5vHE")
infoClient := info.NewClient(uri)
networkID, err := infoClient.GetNetworkID(context.Background())
if err != nil {
log.Fatalf("failed to fetch network ID: %s\n", err)
}
chainToL1Conversion, err := warpmessage.NewChainToL1Conversion(conversionID)
if err != nil {
log.Fatalf("failed to create NetToL1Conversion message: %s\n", err)
}
addressedCall, err := payload.NewAddressedCall(
nil,
chainToL1Conversion.Bytes(),
)
if err != nil {
log.Fatalf("failed to create AddressedCall message: %s\n", err)
}
unsignedWarp, err := warp.NewUnsignedMessage(
networkID,
constants.PlatformChainID,
addressedCall.Bytes(),
)
if err != nil {
log.Fatalf("failed to create unsigned Warp message: %s\n", err)
}
p, err := peer.StartTestPeer(
context.Background(),
netip.AddrPortFrom(
netip.AddrFrom4([4]byte{127, 0, 0, 1}),
9651,
),
networkID,
&simpleInboundHandler{},
)
if err != nil {
log.Fatalf("failed to start peer: %s\n", err)
}
messageBuilder, err := p2pmessage.NewCreator(
metric.NewNoOpRegistry(),
compression.TypeZstd,
time.Hour,
)
if err != nil {
log.Fatalf("failed to create message builder: %s\n", err)
}
appRequestPayload, err := proto.Marshal(&sdk.SignatureRequest{
Message: unsignedWarp.Bytes(),
Justification: netID[:],
})
if err != nil {
log.Fatalf("failed to marshal SignatureRequest: %s\n", err)
}
appRequest, err := messageBuilder.Request(
constants.PlatformChainID,
0,
time.Hour,
p2psdk.PrefixMessage(
p2psdk.ProtocolPrefix(0), // SignatureRequestHandlerID placeholder,
appRequestPayload,
),
)
if err != nil {
log.Fatalf("failed to create Request: %s\n", err)
}
p.Send(context.Background(), appRequest)
time.Sleep(5 * time.Second)
p.StartClose()
err = p.AwaitClosed(context.Background())
if err != nil {
log.Fatalf("failed to close peer: %s\n", err)
}
}