feat: return timestamp from GetIDs (#103)

* feat: return timestamp from `GetIDs`

Enhanced the GetIDs functionality to include a timestamp in the response, both in the proto files and Go structures. Updated relevant files and added checks for the new field in the tests.

* chore: fix linter errors

* fix: remove unused struct

* chore: Switch from Docker to 'plain' Buf for protobuf generation

Removed old protobuf generation shell scripts and updated Makefile to use Buf. Changed dependencies and updated configurations accordingly. This modernizes the setup and removes the dependency on Docker.

* refactor: use google.protobuf.Timestamp instead of int64

Replaced the int64 timestamp with google.protobuf.Timestamp in the GetIdsResponse message. Adjusted the generated code to handle the new timestamp type and updated the protobuf imports accordingly.

* ci: fix PATH issues

* ci: use Go version from go.mod

.github/workflows/lint.yml

@@ -52,5 +52,9 @@ jobs:
     timeout-minutes: 5
     steps:
       - uses: actions/checkout@v4
+      - name: set up go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: 'go.mod'
       - run: make proto-gen
       - run: make proto-lint

.github/workflows/proto.yml

@@ -9,6 +9,10 @@ jobs:
     timeout-minutes: 5
     steps:
       - uses: actions/checkout@v4
+      - name: set up go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: 'go.mod'
       - name: "Check protobuf generated code matches committed code"
         # yamllint disable
         run: |

Makefile

@@ -65,14 +65,21 @@ test: vet
 	@go test -v -race -covermode=atomic -coverprofile=coverage.txt $(pkgs) -run $(run) -count=$(count)
 .PHONY: test
 
-## proto-gen: Generate protobuf files. Requires docker.
-proto-gen:
+## check-proto-deps: Check protobuf deps
+check-proto-deps:
+ifeq (,$(shell which protoc-gen-gocosmos))
+	@go install github.com/cosmos/gogoproto/protoc-gen-gocosmos@latest
+endif
+.PHONY: check-proto-deps
+
+## proto-gen: Generate protobuf files
+proto-gen: check-proto-deps
 	@echo "--> Generating Protobuf files"
-	./proto/gen.sh
+	@go run github.com/bufbuild/buf/cmd/buf@latest generate --path proto/da
 .PHONY: proto-gen
 
-## proto-lint: Lint protobuf files. Requires docker.
-proto-lint:
+## proto-lint: Lint protobuf files.
+proto-lint: check-proto-deps
 	@echo "--> Linting Protobuf files"
-	@$(DOCKER_BUF) lint --error-format=json
+	@go run github.com/bufbuild/buf/cmd/buf@latest lint --error-format=json
 .PHONY: proto-lint

buf.gen.yaml

@@ -3,8 +3,13 @@ version: v1beta1
 # The plugins to run.
 plugins:
   # The name of the plugin.
-  - name: gogofaster
+  - name: gocosmos
      # The the relative output directory.
     out: types/pb
     # Any options to provide to the plugin.
-    opt: plugins=grpc,paths=source_relative
+    opt:
+      - Mgoogle/protobuf/timestamp.proto=github.com/cosmos/gogoproto/types
+      - Mgoogle/protobuf/duration.proto=github.com/golang/protobuf/ptypes/duration
+      - Mgoogle/protobuf/wrappers.proto=github.com/cosmos/gogoproto/types
+      - plugins=grpc
+      - paths=source_relative

buf.lock

@@ -0,0 +1,8 @@
+# Generated by buf. DO NOT EDIT.
+version: v1beta1
+deps:
+  - remote: buf.build
+    owner: cosmos
+    repository: gogo-proto
+    commit: 88ef6483f90f478fb938c37dde52ece3
+    digest: shake256:89c45df2aa11e0cff97b0d695436713db3d993d76792e9f8dc1ae90e6ab9a9bec55503d48ceedd6b86069ab07d3041b32001b2bfe0227fa725dd515ff381e5ba

buf.yaml

@@ -1,12 +1,13 @@
 version: v1beta1
-
+deps:
+  - buf.build/cosmos/gogo-proto
 build:
   roots:
     - proto
     - third_party/proto
 lint:
   use:
-    - DEFAULT
+    - STANDARD
     - COMMENTS
     - FILE_LOWER_SNAKE_CASE
   except:

da.go

@@ -1,6 +1,9 @@
 package da
 
-import "context"
+import (
+	"context"
+	"time"
+)
 
 // DA defines very generic interface for interaction with Data Availability layers.
 type DA interface {
@@ -14,7 +17,7 @@ type DA interface {
 	Get(ctx context.Context, ids []ID, namespace Namespace) ([]Blob, error)
 
 	// GetIDs returns IDs of all Blobs located in DA at given height.
-	GetIDs(ctx context.Context, height uint64, namespace Namespace) ([]ID, error)
+	GetIDs(ctx context.Context, height uint64, namespace Namespace) (*GetIDsResult, error)
 
 	// GetProofs returns inclusion Proofs for Blobs specified by their IDs.
 	GetProofs(ctx context.Context, ids []ID, namespace Namespace) ([]Proof, error)
@@ -53,3 +56,9 @@ type Commitment = []byte
 
 // Proof should contain serialized proof of inclusion (publication) of Blob in Data Availability layer.
 type Proof = []byte
+
+// GetIDsResult holds the result of GetIDs call: IDs and timestamp of corresponding block.
+type GetIDsResult struct {
+	IDs       []ID
+	Timestamp time.Time
+}

go.mod

@@ -3,8 +3,8 @@ module github.com/rollkit/go-da
 go 1.21.1
 
 require (
+	github.com/cosmos/gogoproto v1.7.0
 	github.com/filecoin-project/go-jsonrpc v0.6.0
-	github.com/gogo/protobuf v1.3.2
 	github.com/ipfs/go-log/v2 v2.5.1
 	github.com/stretchr/testify v1.9.0
 	google.golang.org/grpc v1.66.2
@@ -13,6 +13,7 @@ require (
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6 // indirect
+	github.com/google/go-cmp v0.6.0 // indirect
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/gorilla/websocket v1.4.2 // indirect
 	github.com/mattn/go-isatty v0.0.14 // indirect
@@ -26,7 +27,7 @@ require (
 	golang.org/x/text v0.16.0 // indirect
 	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20240604185151-ef581f913117 // indirect
-	google.golang.org/protobuf v1.34.1 // indirect
+	google.golang.org/protobuf v1.34.2 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
 

go.sum

@@ -3,19 +3,21 @@ github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03
 github.com/benbjohnson/clock v1.1.0 h1:Q92kusRqC1XV2MjkWETPvjJVqKetz1OzxZB7mHJLju8=
 github.com/benbjohnson/clock v1.1.0/go.mod h1:J11/hYXuz8f4ySSvYwY0FKfm+ezbsZBKZxNJlLklBHA=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/cosmos/gogoproto v1.7.0 h1:79USr0oyXAbxg3rspGh/m4SWNyoz/GLaAh0QlCe2fro=
+github.com/cosmos/gogoproto v1.7.0/go.mod h1:yWChEv5IUEYURQasfyBW5ffkMHR/90hiHgbNgrtp4j0=
 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=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/filecoin-project/go-jsonrpc v0.6.0 h1:/fFJIAN/k6EgY90m7qbyfY28woMwyseZmh2gVs5sYjY=
 github.com/filecoin-project/go-jsonrpc v0.6.0/go.mod h1:/n/niXcS4ZQua6i37LcVbY1TmlJR0UIK9mDFQq2ICek=
-github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
-github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6 h1:ZgQEtGgCBiWRM39fZuwSd1LwSqqSW0hOdXCYYDX0R3I=
 github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg=
+github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
@@ -25,8 +27,6 @@ github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0U
 github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/ipfs/go-log/v2 v2.5.1 h1:1XdUzF7048prq4aBjDQQ4SL5RxftpRGdXhNRwKSAlcY=
 github.com/ipfs/go-log/v2 v2.5.1/go.mod h1:prSpmC1Gpllc9UYWxDiZDreBYw7zp4Iqp1kOLU9U5UI=
-github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
-github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
 github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
@@ -44,8 +44,6 @@ github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81P
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
 github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
-github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
-github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 go.opencensus.io v0.22.3 h1:8sGtKOrtQqkN1bp2AtX+misvLIlOmsEsNd+9NIcPEm8=
 go.opencensus.io v0.22.3/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
@@ -59,23 +57,18 @@ go.uber.org/zap v1.19.1 h1:ue41HOKd1vGURxrmeKIgELGb3jPW9DMUDGtsinblHwI=
 go.uber.org/zap v1.19.1/go.mod h1:j3DNczoxDZroyBnOT1L/Q79cfUMGZxlv/9dzN7SM1rI=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
-golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
-golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
 golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
 golang.org/x/net v0.26.0 h1:soB7SVo0PWrY4vPW/+ay0jKDNScG2X9wFeYlXIvJsOQ=
 golang.org/x/net v0.26.0/go.mod h1:5YKkiSynbBIh3p6iOc/vibscux0x38BZDkn8sCUPxHE=
@@ -84,14 +77,11 @@ golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
@@ -109,12 +99,9 @@ golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGm
 golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
-golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
 golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
@@ -127,8 +114,8 @@ google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZi
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
 google.golang.org/grpc v1.66.2 h1:3QdXkuq3Bkh7w+ywLdLvM56cmGvQHUMZpiCzt6Rqaoo=
 google.golang.org/grpc v1.66.2/go.mod h1:s3/l6xSSCURdVfAnL+TqCNMyTDAGN6+lZeVxnZR128Y=
-google.golang.org/protobuf v1.34.1 h1:9ddQBjfCyZPOHPUiPxpYESBLc+T8P3E+Vo4IbKZgFWg=
-google.golang.org/protobuf v1.34.1/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
+google.golang.org/protobuf v1.34.2 h1:6xV6lTsCfpGD21XK49h7MhtcApnLqkfYgPcdHftf6hg=
+google.golang.org/protobuf v1.34.2/go.mod h1:qYOHts0dSfpeUzUFpOMr/WGzszTmLH+DiWniOlNbLDw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

proto/da/da.proto

@@ -1,6 +1,8 @@
 syntax = "proto3";
 package da;
 
+import "google/protobuf/timestamp.proto";
+
 // DAService is the protobuf service definition for interaction with Data Availability layers.
 service DAService {
     // MaxBlobSize returns the maximum blob size
@@ -79,6 +81,7 @@ message GetIdsRequest {
 // GetIdsResponse is the response type for the GetIds rpc method.
 message GetIdsResponse {
 	repeated ID ids = 1;
+  google.protobuf.Timestamp timestamp = 2;
 }
 
 // GetProofsRequest is the request type for the GetProofs rpc method.

proxy/grpc/client.go

@@ -3,6 +3,7 @@ package grpc
 import (
 	"context"
 
+	"github.com/cosmos/gogoproto/types"
 	"google.golang.org/grpc"
 
 	"github.com/rollkit/go-da"
@@ -65,14 +66,18 @@ func (c *Client) Get(ctx context.Context, ids []da.ID, namespace da.Namespace) (
 }
 
 // GetIDs returns IDs of all Blobs located in DA at given height.
-func (c *Client) GetIDs(ctx context.Context, height uint64, namespace da.Namespace) ([]da.ID, error) {
+func (c *Client) GetIDs(ctx context.Context, height uint64, namespace da.Namespace) (*da.GetIDsResult, error) {
 	req := &pbda.GetIdsRequest{Height: height, Namespace: &pbda.Namespace{Value: namespace}}
 	resp, err := c.client.GetIds(ctx, req)
 	if err != nil {
 		return nil, err
 	}
 
-	return idsPB2DA(resp.Ids), nil
+	timestamp, err := types.TimestampFromProto(resp.Timestamp)
+	if err != nil {
+		return nil, err
+	}
+	return &da.GetIDsResult{IDs: idsPB2DA(resp.Ids), Timestamp: timestamp}, nil
 }
 
 // GetProofs returns inclusion Proofs for all Blobs located in DA at given height.

proxy/grpc/server.go

@@ -3,6 +3,7 @@ package grpc
 import (
 	"context"
 
+	"github.com/cosmos/gogoproto/types"
 	"google.golang.org/grpc"
 
 	"github.com/rollkit/go-da"
@@ -38,12 +39,16 @@ func (p *proxySrv) Get(ctx context.Context, request *pbda.GetRequest) (*pbda.Get
 }
 
 func (p *proxySrv) GetIds(ctx context.Context, request *pbda.GetIdsRequest) (*pbda.GetIdsResponse, error) {
-	ids, err := p.target.GetIDs(ctx, request.Height, request.Namespace.GetValue())
+	ret, err := p.target.GetIDs(ctx, request.Height, request.Namespace.GetValue())
 	if err != nil {
 		return nil, err
 	}
 
-	return &pbda.GetIdsResponse{Ids: idsDA2PB(ids)}, nil
+	timestamp, err := types.TimestampProto(ret.Timestamp)
+	if err != nil {
+		return nil, err
+	}
+	return &pbda.GetIdsResponse{Ids: idsDA2PB(ret.IDs), Timestamp: timestamp}, nil
 }
 
 func (p *proxySrv) Commit(ctx context.Context, request *pbda.CommitRequest) (*pbda.CommitResponse, error) {

proxy/jsonrpc/client.go

@@ -22,7 +22,7 @@ type API struct {
 	Internal struct {
 		MaxBlobSize       func(ctx context.Context) (uint64, error)                                            `perm:"read"`
 		Get               func(ctx context.Context, ids []da.ID, ns da.Namespace) ([]da.Blob, error)           `perm:"read"`
-		GetIDs            func(ctx context.Context, height uint64, ns da.Namespace) ([]da.ID, error)           `perm:"read"`
+		GetIDs            func(ctx context.Context, height uint64, ns da.Namespace) (*da.GetIDsResult, error)  `perm:"read"`
 		GetProofs         func(ctx context.Context, ids []da.ID, ns da.Namespace) ([]da.Proof, error)          `perm:"read"`
 		Commit            func(ctx context.Context, blobs []da.Blob, ns da.Namespace) ([]da.Commitment, error) `perm:"read"`
 		Validate          func(context.Context, []da.ID, []da.Proof, da.Namespace) ([]bool, error)             `perm:"read"`
@@ -42,7 +42,7 @@ func (api *API) Get(ctx context.Context, ids []da.ID, ns da.Namespace) ([]da.Blo
 }
 
 // GetIDs returns IDs of all Blobs located in DA at given height.
-func (api *API) GetIDs(ctx context.Context, height uint64, ns da.Namespace) ([]da.ID, error) {
+func (api *API) GetIDs(ctx context.Context, height uint64, ns da.Namespace) (*da.GetIDsResult, error) {
 	return api.Internal.GetIDs(ctx, height, ns)
 }