Merge pull request #49 from meshplus/feat/split-merkle-wrapper

feat(*): split merkleWrapper into header and txWrapper
2020-04-27 13:15:55 +08:00 · 2020-04-27 13:15:55 +08:00 · a0da50b9b9
parent 07fd9c1679 3ae115af8f
commit a0da50b9b9
9 changed files with 109 additions and 209 deletions
--- a/api/grpc/block.go
+++ b/api/grpc/block.go
@ -6,40 +6,49 @@ import (
 	"github.com/meshplus/bitxhub-model/pb"
 )

-func (cbs *ChainBrokerService) SyncMerkleWrapper(req *pb.SyncMerkleWrapperRequest, server pb.ChainBroker_SyncMerkleWrapperServer) error {
-	c, err := cbs.api.Broker().AddPier(req.AppchainId)
+func (cbs *ChainBrokerService) GetInterchainTxWrapper(req *pb.GetInterchainTxWrapperRequest, server pb.ChainBroker_GetInterchainTxWrapperServer) error {
+	meta, err := cbs.api.Chain().Meta()
 	if err != nil {
 		return err
 	}

+	if meta.Height < req.End {
+		req.End = meta.Height
+	}
+
+	ch := make(chan *pb.InterchainTxWrapper, req.End-req.Begin+1)
+	if err := cbs.api.Broker().GetInterchainTxWrapper(req.Pid, req.Begin, req.End, ch); err != nil {
+		return err
+	}
+
 	for {
 		select {
 		case <-cbs.ctx.Done():
 			break
-		case bw, ok := <-c:
+		case bw, ok := <-ch:
 			if !ok {
 				return nil
 			}

-			bs, err := bw.Marshal()
-			if err != nil {
-				cbs.api.Broker().RemovePier(req.AppchainId)
-				break
-			}
-
-			if err := server.Send(&pb.Response{
-				Data: bs,
-			}); err != nil {
-				cbs.api.Broker().RemovePier(req.AppchainId)
-				break
+			if err := server.Send(bw); err != nil {
+				return err
 			}
 		}
 	}
 }

-func (cbs *ChainBrokerService) GetMerkleWrapper(req *pb.GetMerkleWrapperRequest, server pb.ChainBroker_GetMerkleWrapperServer) error {
-	ch := make(chan *pb.MerkleWrapper, req.End-req.Begin+1)
-	if err := cbs.api.Broker().GetMerkleWrapper(req.Pid, req.Begin, req.End, ch); err != nil {
+func (cbs *ChainBrokerService) GetBlockHeader(req *pb.GetBlockHeaderRequest, server pb.ChainBroker_GetBlockHeaderServer) error {
+	meta, err := cbs.api.Chain().Meta()
+	if err != nil {
+		return err
+	}
+
+	if meta.Height < req.End {
+		req.End = meta.Height
+	}
+
+	ch := make(chan *pb.BlockHeader, req.End-req.Begin+1)
+	if err := cbs.api.Broker().GetBlockHeader(req.Begin, req.End, ch); err != nil {
 		return err
 	}

@ -47,19 +56,17 @@ func (cbs *ChainBrokerService) GetMerkleWrapper(req *pb.GetMerkleWrapperRequest,
 		select {
 		case <-cbs.ctx.Done():
 			break
-		case w := <-ch:
-			data, err := w.Marshal()
-			if err != nil {
+		case w, ok := <-ch:
+			// if channel is unexpected closed, return
+			if !ok {
+				return nil
+			}
+
+			if err := server.Send(w); err != nil {
 				return err
 			}

-			if err := server.Send(&pb.Response{
-				Data: data,
-			}); err != nil {
-				return err
-			}
-
-			if w.BlockHeader.Number == req.End {
+			if w.Number == req.End {
 				return nil
 			}

--- a/api/grpc/subscribe.go
+++ b/api/grpc/subscribe.go
@ -24,6 +24,8 @@ func (cbs *ChainBrokerService) Subscribe(req *pb.SubscriptionRequest, server pb.
 		return cbs.handleNewBlockSubscription(server)
 	case pb.SubscriptionRequest_BLOCK_HEADER.String():
 		return cbs.handleBlockHeaderSubscription(server)
+	case pb.SubscriptionRequest_INTERCHAIN_TX_WRAPPER.String():
+		return cbs.handleInterchainTxWrapperSubscription(server, string(req.Extra))
 	}

 	return nil
@ -107,6 +109,36 @@ func (cbs *ChainBrokerService) handleInterchainTxSubscription(server pb.ChainBro
 	}
 }

+func (cbs *ChainBrokerService) handleInterchainTxWrapperSubscription(server pb.ChainBroker_SubscribeServer, pid string) error {
+	ch, err := cbs.api.Broker().AddPier(pid)
+	if err != nil {
+		return err
+	}
+
+	for {
+		select {
+		case wrapper, ok := <-ch:
+			// if channel is unexpected closed, return
+			if !ok {
+				return nil
+			}
+			data, err := wrapper.Marshal()
+			if err != nil {
+				return err
+			}
+
+			if err := server.Send(&pb.Response{
+				Data: data,
+			}); err != nil {
+				cbs.logger.Warnf("Send new interchain tx wrapper failed %s", err.Error())
+				return fmt.Errorf("send new interchain tx wrapper failed")
+			}
+		case <-server.Context().Done():
+			return nil
+		}
+	}
+}
+
 type interchainEvent struct {
 	InterchainTx      []*InterchainStatus `json:"interchain_tx"`
 	InterchainReceipt []*InterchainStatus `json:"interchain_receipt"`
--- a/go.mod
+++ b/go.mod
@ -9,16 +9,14 @@ require (
 	github.com/gobuffalo/packr v1.30.1
 	github.com/gogo/protobuf v1.3.1
 	github.com/golang/mock v1.4.3
-	github.com/golangci/golangci-lint v1.23.0 // indirect
 	github.com/grpc-ecosystem/grpc-gateway v1.13.0
 	github.com/hokaccha/go-prettyjson v0.0.0-20190818114111-108c894c2c0e
 	github.com/libp2p/go-libp2p-core v0.3.0
 	github.com/magiconair/properties v1.8.1
 	github.com/meshplus/bitxhub-core v0.1.0-rc1
 	github.com/meshplus/bitxhub-kit v1.0.0
-	github.com/meshplus/bitxhub-model v1.0.0-rc4
-	github.com/meshplus/go-bitxhub-client v1.0.0-rc4
-	github.com/minio/sha256-simd v0.1.1
+	github.com/meshplus/bitxhub-model v1.0.0-rc4.0.20200427024612-57b479c1d610
+	github.com/meshplus/go-bitxhub-client v1.0.0-rc4.0.20200427032046-a06a72f3d286
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/multiformats/go-multiaddr v0.2.0
 	github.com/pkg/errors v0.9.1
--- a/go.sum
+++ b/go.sum
@ -21,8 +21,6 @@ github.com/Knetic/govaluate v3.0.0+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8L
 github.com/Kubuxu/go-os-helper v0.0.1/go.mod h1:N8B+I7vPCT80IcP58r50u4+gEEcsZETFUpAzWW2ep1Y=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
 github.com/OneOfOne/xxhash v1.2.5/go.mod h1:eZbhyaAYD41SGSSsnmcpxVoRiQ/MPUTjUdIIOT9Um7Q=
-github.com/OpenPeeDeeP/depguard v1.0.1 h1:VlW4R6jmBIv3/u1JNlawEvJMM4J+dPORPaZasQee8Us=
-github.com/OpenPeeDeeP/depguard v1.0.1/go.mod h1:xsIw86fROiiwelg+jB2uM9PiKihMMmUx/1V+TNhjQvM=
 github.com/Rican7/retry v0.1.0 h1:FqK94z34ly8Baa6K+G8Mmza9rYWTKOJk+yckIBB5qVk=
 github.com/Rican7/retry v0.1.0/go.mod h1:FgOROf8P5bebcC1DS0PdOQiqGUridaZvikzUmkFW6gg=
 github.com/Shopify/sarama v1.26.1 h1:3jnfWKD7gVwbB1KSy/lE0szA9duPuSFLViK0o/d3DgA=
@ -55,8 +53,6 @@ github.com/beorn7/perks v1.0.0 h1:HWo1m869IqiPhD389kmkxeTalrjNbbJTC8LXupb+sl0=
 github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
-github.com/bombsimon/wsl/v2 v2.0.0 h1:+Vjcn+/T5lSrO8Bjzhk4v14Un/2UyCA1E3V5j9nwTkQ=
-github.com/bombsimon/wsl/v2 v2.0.0/go.mod h1:mf25kr/SqFEPhhcxW1+7pxzGlW+hIl/hYTKY95VwV8U=
 github.com/btcsuite/btcd v0.0.0-20171128150713-2e60448ffcc6/go.mod h1:Dmm/EzmjnCiweXmzRIAiUWCInVmPgjkzgv5k4tVyXiQ=
 github.com/btcsuite/btcd v0.0.0-20190115013929-ed77733ec07d/go.mod h1:d3C0AkH6BRcvO8T0UEPu53cnw4IbV63x1bEjildYhO0=
 github.com/btcsuite/btcd v0.0.0-20190213025234-306aecffea32 h1:qkOC5Gd33k54tobS36cXdAzJbeHaduLtnLQQwNoIi78=
@ -112,7 +108,6 @@ github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d h1:U+s90UTSY
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/cpuguy83/go-md2man/v2 v2.0.0 h1:EoUDS0afbrsXAZ9YQ9jdu/mZ2sXgT1/2yyNng4PGlyM=
 github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
-github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
 github.com/davecgh/go-spew v0.0.0-20171005155431-ecdeabc65495/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
@ -168,43 +163,18 @@ github.com/ghodss/yaml v1.0.0 h1:wQHKEahhL6wmXdzwWG11gIVCkOv05bNOh+Rxn0yngAk=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/go-check/check v0.0.0-20180628173108-788fd7840127 h1:0gkP6mzaMqkmpcJYCFOLkIBwI7xFExG03bbkOkCvUPI=
 github.com/go-check/check v0.0.0-20180628173108-788fd7840127/go.mod h1:9ES+weclKsC9YodN5RgxqK/VD9HM9JsCSh7rNhMZE98=
-github.com/go-critic/go-critic v0.4.1 h1:4DTQfT1wWwLg/hzxwD9bkdhDQrdJtxe6DUTadPlrIeE=
-github.com/go-critic/go-critic v0.4.1/go.mod h1:7/14rZGnZbY6E38VEGk2kVhoq6itzc1E68facVDK23g=
 github.com/go-kit/kit v0.6.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.8.0 h1:Wz+5lgoB0kkuqLEc6NVmwRknTKP6dTGbSqvhZtBI/j0=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
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-github.com/go-lintpack/lintpack v0.5.2 h1:DI5mA3+eKdWeJ40nU4d6Wc26qmdG8RCi/btYq0TuRN0=
-github.com/go-lintpack/lintpack v0.5.2/go.mod h1:NwZuYi2nUHho8XEIZ6SIxihrnPoqBTDqfpXvXAN0sXM=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0 h1:MP4Eh7ZCb31lleYCFuwm0oe4/YGak+5l1vA2NOE80nA=
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-github.com/go-sql-driver/mysql v1.4.0/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
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-github.com/go-toolsmith/astp v0.0.0-20180903215135-0af7e3c24f30/go.mod h1:SV2ur98SGypH1UjcPpCatrV5hPazG6+IfNHbkDXBRrk=
-github.com/go-toolsmith/astp v1.0.0 h1:alXE75TXgcmupDsMK1fRAy0YUzLzqPVvBKoyWV+KPXg=
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-github.com/go-toolsmith/strparse v1.0.0 h1:Vcw78DnpCAKlM20kSbAyO4mPfJn/lyYA4BJUDxe2Jb4=
-github.com/go-toolsmith/strparse v1.0.0/go.mod h1:YI2nUKP9YGZnL/L1/DLFBfixrcjslWct4wyljWhSRy8=
-github.com/go-toolsmith/typep v1.0.0 h1:zKymWyA1TRYvqYrYDrfEMZULyrhcnGY3x7LDKU2XQaA=
-github.com/go-toolsmith/typep v1.0.0/go.mod h1:JSQCQMUPdRlMZFswiq3TGpNp1GMktqkR2Ns5AIQkATU=
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@ -219,10 +189,6 @@ github.com/gobuffalo/packr v1.30.1 h1:hu1fuVR3fXEZR7rXNW3h8rqSML8EVAf6KNm0NKO/wK
 github.com/gobuffalo/packr v1.30.1/go.mod h1:ljMyFO2EcrnzsHsN99cvbq055Y9OhRrIaviy289eRuk=
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-github.com/gofrs/flock v0.0.0-20190320160742-5135e617513b/go.mod h1:F1TvTiK9OcQqauNUHlbJvyl9Qa1QvF/gOUDKA14jxHU=
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@ -253,36 +219,6 @@ github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db h1:woRePGFeVFfLKN/pO
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@ -295,7 +231,6 @@ github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
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@ -306,8 +241,6 @@ github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoA
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@ -398,14 +331,9 @@ github.com/jehiah/go-strftime v0.0.0-20171201141054-1d33003b3869/go.mod h1:cJ6Cj
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@ -428,13 +356,9 @@ github.com/kisielk/errcheck v1.2.0/go.mod h1:/BMXB+zMLi60iA8Vv6Ksmxu/1UDYcXs4uQL
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@ -450,7 +374,6 @@ github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORN
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@ -460,8 +383,6 @@ github.com/lestrrat-go/file-rotatelogs v2.2.0+incompatible h1:eXEwY0f2h6mcobdAxm
 github.com/lestrrat-go/file-rotatelogs v2.2.0+incompatible/go.mod h1:ZQnN8lSECaebrkQytbHj4xNgtg8CR7RYXnPok8e0EHA=
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@ -566,14 +487,11 @@ github.com/libp2p/go-yamux v1.2.2 h1:s6J6o7+ajoQMjHe7BEnq+EynOj5D2EoG8CuQgL3F2vg
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@ -591,8 +509,6 @@ github.com/mattn/go-isatty v0.0.10 h1:qxFzApOv4WsAL965uUPIsXzAKCZxN2p9UqdhFS4ZW1
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@ -606,12 +522,12 @@ github.com/meshplus/bitxhub-kit v1.0.0 h1:+RHGTqW50CLZlEQAUm89fQHicYcjqkdYa+QMAk
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@ -628,7 +544,6 @@ github.com/minio/sha256-simd v0.1.1 h1:5QHSlgo3nt5yKOJrC7W8w7X+NFl8cMPZm96iu8kKU
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@ -637,7 +552,6 @@ github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJ
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@ -686,8 +600,6 @@ github.com/multiformats/go-varint v0.0.1/go.mod h1:3Ls8CIEsrijN6+B7PbrXRPxHRPuXS
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@ -713,7 +625,6 @@ github.com/opentracing/opentracing-go v1.0.2/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFSt
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@ -759,7 +670,6 @@ github.com/prometheus/procfs v0.0.10 h1:QJQN3jYQhkamO4mhfUWqdDH2asK7ONOI9MTWjyAx
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@ -786,12 +696,6 @@ github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR
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@ -806,8 +710,6 @@ github.com/smartystreets/goconvey v1.6.4/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9
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@ -876,31 +778,17 @@ github.com/tidwall/match v1.0.1 h1:PnKP62LPNxHKTwvHHZZzdOAOCtsJTjo6dZLCwpKm5xc=
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@ -985,7 +873,6 @@ golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzB
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@ -1002,7 +889,6 @@ golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLL
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@ -1056,33 +942,21 @@ golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 h1:SvFZT6jyqRaOeXpc5h/JSfZe
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 golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20190621195816-6e04913cbbac/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
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 golang.org/x/tools v0.0.0-20190624180213-70d37148ca0c/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
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 golang.org/x/tools v0.0.0-20191029190741-b9c20aec41a5 h1:hKsoRgsbwY1NafxrwTs+k64bikrLBkAgPir1TNCj3Zs=
 golang.org/x/tools v0.0.0-20191029190741-b9c20aec41a5/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
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-golang.org/x/tools v0.0.0-20191113232020-e2727e816f5a/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20200102140908-9497f49d5709/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/tools v0.0.0-20200221224223-e1da425f72fd h1:hHkvGJK23seRCflePJnVa9IMv8fsuavSCWKd11kDQFs=
 golang.org/x/tools v0.0.0-20200221224223-e1da425f72fd/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@ -1165,13 +1039,5 @@ honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc h1:/hemPrYIhOhy8zYrNj+069z
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.1-2019.2.3 h1:3JgtbtFHMiCmsznwGVTUWbgGov+pVqnlf1dEJTNAXeM=
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
-mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed h1:WX1yoOaKQfddO/mLzdV4wptyWgoH/6hwLs7QHTixo0I=
-mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed/go.mod h1:Xkxe497xwlCKkIaQYRfC7CSLworTXY9RMqwhhCm+8Nc=
-mvdan.cc/lint v0.0.0-20170908181259-adc824a0674b h1:DxJ5nJdkhDlLok9K6qO+5290kphDJbHOQO1DFFFTeBo=
-mvdan.cc/lint v0.0.0-20170908181259-adc824a0674b/go.mod h1:2odslEg/xrtNQqCYg2/jCoyKnw3vv5biOc3JnIcYfL4=
-mvdan.cc/unparam v0.0.0-20190720180237-d51796306d8f h1:Cq7MalBHYACRd6EesksG1Q8EoIAKOsiZviGKbOLIej4=
-mvdan.cc/unparam v0.0.0-20190720180237-d51796306d8f/go.mod h1:4G1h5nDURzA3bwVMZIVpwbkw+04kSxk3rAtzlimaUJw=
 rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
 rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
-sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4 h1:JPJh2pk3+X4lXAkZIk2RuE/7/FoK9maXw+TNPJhVS/c=
-sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4/go.mod h1:ketZ/q3QxT9HOBeFhu6RdvsftgpsbFHBF5Cas6cDKZ0=
--- a/internal/coreapi/api/api.go
+++ b/internal/coreapi/api/api.go
@ -26,12 +26,14 @@ type BrokerAPI interface {
 	GetBlocks(start uint64, end uint64) ([]*pb.Block, error)

 	// AddPier
-	AddPier(pid string) (chan *pb.MerkleWrapper, error)
+	AddPier(pid string) (chan *pb.InterchainTxWrapper, error)

 	// RemovePier
 	RemovePier(pid string)

-	GetMerkleWrapper(pid string, begin, end uint64, ch chan<- *pb.MerkleWrapper) error
+	GetBlockHeader(begin, end uint64, ch chan<- *pb.BlockHeader) error
+
+	GetInterchainTxWrapper(pid string, begin, end uint64, ch chan<- *pb.InterchainTxWrapper) error

 	// OrderReady
 	OrderReady() bool
--- a/internal/coreapi/broker.go
+++ b/internal/coreapi/broker.go
@ -40,12 +40,16 @@ func (b *BrokerAPI) GetReceipt(hash types.Hash) (*pb.Receipt, error) {
 	return b.bxh.Ledger.GetReceipt(hash)
 }

-func (b *BrokerAPI) AddPier(key string) (chan *pb.MerkleWrapper, error) {
+func (b *BrokerAPI) AddPier(key string) (chan *pb.InterchainTxWrapper, error) {
 	return b.bxh.Router.AddPier(key)
 }

-func (b *BrokerAPI) GetMerkleWrapper(pid string, begin, end uint64, ch chan<- *pb.MerkleWrapper) error {
-	return b.bxh.Router.GetMerkleWrapper(pid, begin, end, ch)
+func (b *BrokerAPI) GetBlockHeader(begin, end uint64, ch chan<- *pb.BlockHeader) error {
+	return b.bxh.Router.GetBlockHeader(begin, end, ch)
+}
+
+func (b *BrokerAPI) GetInterchainTxWrapper(pid string, begin, end uint64, ch chan<- *pb.InterchainTxWrapper) error {
+	return b.bxh.Router.GetInterchainTxWrapper(pid, begin, end, ch)
 }

 func (b *BrokerAPI) GetBlock(mode string, value string) (*pb.Block, error) {
--- a/internal/router/interchain.go
+++ b/internal/router/interchain.go
@ -59,8 +59,8 @@ func (router *InterchainRouter) Stop() error {
 	return nil
 }

-func (router *InterchainRouter) AddPier(key string) (chan *pb.MerkleWrapper, error) {
-	c := make(chan *pb.MerkleWrapper, blockChanNumber)
+func (router *InterchainRouter) AddPier(key string) (chan *pb.InterchainTxWrapper, error) {
+	c := make(chan *pb.InterchainTxWrapper, blockChanNumber)
 	router.piers.Store(key, c)
 	router.count++
 	router.logger.WithFields(logrus.Fields{
@ -80,57 +80,47 @@ func (router *InterchainRouter) PutBlock(block *pb.Block) {
 		return
 	}

-	signed, err := router.fetchSigns(block.BlockHeader.Number)
-	if err != nil {
-		router.logger.Errorf("fetch signs: %w", err)
-	}
-
 	ret := router.classify(block)

 	router.piers.Range(func(k, value interface{}) bool {
 		key := k.(string)
-		w := value.(chan *pb.MerkleWrapper)
+		w := value.(chan *pb.InterchainTxWrapper)
 		_, ok := ret[key]
 		if ok {
-			ret[key].Signatures = signed
 			w <- ret[key]
 			return true
 		}

-		w <- &pb.MerkleWrapper{
-			BlockHeader: block.BlockHeader,
-			BlockHash:   block.BlockHash,
-			Signatures:  signed,
-		}
-
 		return true
 	})
 }

-func (router *InterchainRouter) GetMerkleWrapper(pid string, begin, end uint64, ch chan<- *pb.MerkleWrapper) error {
+func (router *InterchainRouter) GetBlockHeader(begin, end uint64, ch chan<- *pb.BlockHeader) error {
 	for i := begin; i <= end; i++ {
 		block, err := router.ledger.GetBlock(i)
 		if err != nil {
 			return fmt.Errorf("get block: %w", err)
 		}

-		signed, err := router.fetchSigns(i)
+		// TODO: fetch signatures to block header
+		ch <- block.GetBlockHeader()
+	}
+
+	return nil
+}
+
+func (router *InterchainRouter) GetInterchainTxWrapper(pid string, begin, end uint64, ch chan<- *pb.InterchainTxWrapper) error {
+	for i := begin; i <= end; i++ {
+		block, err := router.ledger.GetBlock(i)
 		if err != nil {
-			return fmt.Errorf("fetch signs: %w", err)
+			return fmt.Errorf("get block: %w", err)
 		}

 		ret := router.classify(block)
 		if ret[pid] != nil {
-			ret[pid].Signatures = signed
 			ch <- ret[pid]
 			continue
 		}
-
-		ch <- &pb.MerkleWrapper{
-			BlockHeader: block.BlockHeader,
-			BlockHash:   block.BlockHash,
-			Signatures:  signed,
-		}
 	}

 	return nil
@ -141,14 +131,14 @@ func (router *InterchainRouter) fetchSigns(height uint64) (map[string][]byte, er
 	return nil, nil
 }

-func (router *InterchainRouter) classify(block *pb.Block) map[string]*pb.MerkleWrapper {
+func (router *InterchainRouter) classify(block *pb.Block) map[string]*pb.InterchainTxWrapper {
 	hashes := make([]types.Hash, 0, len(block.Transactions))
 	for _, tx := range block.Transactions {
 		hashes = append(hashes, tx.TransactionHash)
 	}

 	if block.BlockHeader.InterchainIndex == nil {
-		return make(map[string]*pb.MerkleWrapper)
+		return make(map[string]*pb.InterchainTxWrapper)
 	}
 	idx := make(map[string][]uint64)
 	m := make(map[string][]*pb.Transaction)
@ -165,13 +155,12 @@ func (router *InterchainRouter) classify(block *pb.Block) map[string]*pb.MerkleW
 		m[k] = txs
 	}

-	target := make(map[string]*pb.MerkleWrapper)
+	target := make(map[string]*pb.InterchainTxWrapper)
 	for dest, txs := range m {
-		wrapper := &pb.MerkleWrapper{
-			BlockHeader:       block.BlockHeader,
+		wrapper := &pb.InterchainTxWrapper{
+			Height:            block.BlockHeader.Number,
 			TransactionHashes: hashes,
 			Transactions:      txs,
-			BlockHash:         block.BlockHash,
 		}
 		target[dest] = wrapper
 	}
--- a/internal/router/router.go
+++ b/internal/router/router.go
@ -13,11 +13,13 @@ type Router interface {
 	PutBlock(*pb.Block)

 	// AddPier
-	AddPier(id string) (chan *pb.MerkleWrapper, error)
+	AddPier(id string) (chan *pb.InterchainTxWrapper, error)

 	// RemovePier
 	RemovePier(id string)

-	// GetMerkleWrapper
-	GetMerkleWrapper(pid string, begin, end uint64, ch chan<- *pb.MerkleWrapper) error
+	// GetBlockHeader
+	GetBlockHeader(begin, end uint64, ch chan<- *pb.BlockHeader) error
+
+	GetInterchainTxWrapper(pid string, begin, end uint64, ch chan<- *pb.InterchainTxWrapper) error
 }
--- a/tester/case006_pier_test.go
+++ b/tester/case006_pier_test.go
@ -69,7 +69,7 @@ func (suite *Pier) TestSyncMerkleWrapper() {
 	suite.Require().EqualValues("SUCCESS", ret.Status.String())

 	go func() {
-		w, err := client.SyncMerkleWrapper(context.Background(), address.Hex(), 1)
+		w, err := client.Subscribe(context.Background(), pb.SubscriptionRequest_INTERCHAIN_TX_WRAPPER, address.Bytes())
 		suite.Require().Nil(err)
 		fmt.Println(<-w)
 	}()