Event data and filtering enhancements

go.mod

@@ -4,6 +4,7 @@ go 1.16
 
 require (
 	github.com/Shopify/sarama v1.29.1
+	github.com/cpuguy83/go-md2man/v2 v2.0.1 // indirect
 	github.com/fatih/color v1.12.0 // indirect
 	github.com/globalsign/mgo v0.0.0-20181015135952-eeefdecb41b8
 	github.com/golang/protobuf v1.5.2
@@ -16,6 +17,8 @@ require (
 	github.com/hyperledger/fabric-protos-go v0.0.0-20200707132912-fee30f3ccd23
 	github.com/hyperledger/fabric-sdk-go v1.0.1-0.20210729165856-3be4ed253dcf
 	github.com/julienschmidt/httprouter v1.3.0
+	github.com/mattn/go-isatty v0.0.13 // indirect
+	github.com/mattn/go-runewidth v0.0.13 // indirect
 	github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d // indirect
 	github.com/nu7hatch/gouuid v0.0.0-20131221200532-179d4d0c4d8d
 	github.com/oklog/ulid/v2 v2.0.2
@@ -31,7 +34,7 @@ require (
 	github.com/sykesm/zap-logfmt v0.0.4 // indirect
 	github.com/syndtr/goleveldb v1.0.0
 	github.com/x-cray/logrus-prefixed-formatter v0.5.2
-	golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c // indirect
+	golang.org/x/sys v0.0.0-20210823070655-63515b42dcdf // indirect
 	golang.org/x/tools v0.1.5 // indirect
 	gopkg.in/yaml.v2 v2.4.0
 )

go.sum

@@ -123,8 +123,9 @@ github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfc
 github.com/cpuguy83/go-md2man v1.0.10 h1:BSKMNlYxDvnunlTymqtgONjNnaRV1sTpcovwwjF22jk=
 github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
 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/cpuguy83/go-md2man/v2 v2.0.1 h1:r/myEWzV9lfsM1tFLgDyu0atFtJ1fXn261LKYj/3DxU=
+github.com/cpuguy83/go-md2man/v2 v2.0.1/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/daaku/go.zipexe v1.0.0/go.mod h1:z8IiR6TsVLEYKwXAoE/I+8ys/sDkgTzSL0CLnGVd57E=
@@ -416,13 +417,15 @@ github.com/mattn/go-isatty v0.0.3/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNx
 github.com/mattn/go-isatty v0.0.4/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
 github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
 github.com/mattn/go-isatty v0.0.10/go.mod h1:qgIWMr58cqv1PHHyhnkY9lrL7etaEgOFcMEpPG5Rm84=
-github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHXY=
 github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
+github.com/mattn/go-isatty v0.0.13 h1:qdl+GuBjcsKKDco5BsxPJlId98mSWNKqYA+Co0SC1yA=
+github.com/mattn/go-isatty v0.0.13/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
 github.com/mattn/go-runewidth v0.0.2/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
 github.com/mattn/go-runewidth v0.0.4/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
 github.com/mattn/go-runewidth v0.0.6/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
-github.com/mattn/go-runewidth v0.0.9 h1:Lm995f3rfxdpd6TSmuVCHVb/QhupuXlYr8sCI/QdE+0=
 github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
+github.com/mattn/go-runewidth v0.0.13 h1:lTGmDsbAYt5DmK6OnoV7EuIF1wEIFAcxld6ypU4OSgU=
+github.com/mattn/go-runewidth v0.0.13/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
 github.com/mattn/go-sqlite3 v1.10.0/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=
 github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
@@ -555,19 +558,21 @@ github.com/pseudomuto/protokit v0.2.0/go.mod h1:2PdH30hxVHsup8KpBTOXTBeMVhJZVio3
 github.com/rcrowley/go-metrics v0.0.0-20181016184325-3113b8401b8a/go.mod h1:bCqnVzQkZxMG4s8nGwiZ5l3QUCyqpo9Y+/ZMZ9VjZe4=
 github.com/rcrowley/go-metrics v0.0.0-20201227073835-cf1acfcdf475 h1:N/ElC8H3+5XpJzTSTfLsJV/mx9Q9g7kxmchpfZyxgzM=
 github.com/rcrowley/go-metrics v0.0.0-20201227073835-cf1acfcdf475/go.mod h1:bCqnVzQkZxMG4s8nGwiZ5l3QUCyqpo9Y+/ZMZ9VjZe4=
+github.com/rivo/uniseg v0.2.0 h1:S1pD9weZBuJdFmowNwbpi7BJ8TNftyUImj/0WQi72jY=
+github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rogpeppe/fastuuid v0.0.0-20150106093220-6724a57986af/go.mod h1:XWv6SoW27p1b0cqNHllgS5HIMJraePCO15w5zCzIWYg=
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
 github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
 github.com/rs/cors v1.7.0/go.mod h1:gFx+x8UowdsKA9AchylcLynDq+nNFfI8FkUZdN/jGCU=
 github.com/russross/blackfriday v1.5.2 h1:HyvC0ARfnZBqnXwABFeSZHpKvJHJJfPz81GNueLj0oo=
 github.com/russross/blackfriday v1.5.2/go.mod h1:JO/DiYxRf+HjHt06OyowR9PTA263kcR/rfWxYHBV53g=
-github.com/russross/blackfriday/v2 v2.0.1 h1:lPqVAte+HuHNfhJ/0LC98ESWRz8afy9tM/0RK8m9o+Q=
 github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
+github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/ryanuber/columnize v0.0.0-20160712163229-9b3edd62028f/go.mod h1:sm1tb6uqfes/u+d4ooFouqFdy9/2g9QGwK3SQygK0Ts=
 github.com/samuel/go-zookeeper v0.0.0-20190923202752-2cc03de413da/go.mod h1:gi+0XIa01GRL2eRQVjQkKGqKF3SF9vZR/HnPullcV2E=
 github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529/go.mod h1:DxrIzT+xaE7yg65j358z/aeFdxmN0P9QXhEzd20vsDc=
 github.com/sergi/go-diff v1.1.0/go.mod h1:STckp+ISIX8hZLjrqAeVduY0gWCT9IjLuqbuNXdaHfM=
-github.com/shurcooL/sanitized_anchor_name v1.0.0 h1:PdmoCO6wvbs+7yrJyMORt4/BmY5IYyJwS/kOiWx8mHo=
 github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/sirupsen/logrus v1.3.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
@@ -875,8 +880,8 @@ golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c h1:F1jZWGFhYfh0Ci55sIpILtKKK8p3i2/krTr0H1rg74I=
-golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20210823070655-63515b42dcdf h1:2ucpDCmfkl8Bd/FsLtiD653Wf96cW37s+iGx93zsu4k=
+golang.org/x/sys v0.0.0-20210823070655-63515b42dcdf/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1 h1:v+OssWQX+hTHEmOBgwxdZxK4zHq3yOs8F9J7mk0PY8E=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=

internal/events/api/event.go

@@ -16,6 +16,46 @@
 
 package api
 
+const (
+	BlockType_TX     = "tx"     // corresponds to blocks containing regular transactions
+	BlockType_Config = "config" // corresponds to blocks containing channel configurations and updates
+)
+
+// persistedFilter is the part of the filter we record to storage
+// BlockType:   optional. only notify on blocks of a specific type
+//              types are defined in github.com/hyperledger/fabric-protos-go/common:
+//              "config": for HeaderType_CONFIG, HeaderType_CONFIG_UPDATE
+//              "tx": for HeaderType_ENDORSER_TRANSACTION
+// ChaincodeId: optional, only notify on blocks containing events for chaincode Id
+// Filter:      optional. regexp applied to the event name. can be used independent of Chaincode ID
+// FromBlock:   optional. "newest", "oldest", a number. default is "newest"
+type persistedFilter struct {
+	BlockType   string `json:"blockType,omitempty"`
+	ChaincodeId string `json:"chaincodeId,omitempty"`
+	EventFilter string `json:"eventFilter,omitempty"`
+	Filter      string `json:"filter,omitempty"`
+	ToBlock     uint64 `json:"toBlock,omitempty"`
+}
+
+// SubscriptionInfo is the persisted data for the subscription
+type SubscriptionInfo struct {
+	TimeSorted
+	ID        string          `json:"id,omitempty"`
+	ChannelId string          `json:"channel,omitempty"`
+	Path      string          `json:"path"`
+	Summary   string          `json:"-"`      // System generated name for the subscription
+	Name      string          `json:"name"`   // User provided name for the subscription, set to Summary if missing
+	Stream    string          `json:"stream"` // the event stream this subscription is associated under
+	Signer    string          `json:"signer"`
+	FromBlock string          `json:"fromBlock,omitempty"`
+	Filter    persistedFilter `json:"filter"`
+}
+
+// GetID returns the ID (for sorting)
+func (info *SubscriptionInfo) GetID() string {
+	return info.ID
+}
+
 type EventEntry struct {
 	ChaincodeId   string `json:"chaincodeId"`
 	BlockNumber   uint64 `json:"blockNumber"`
@@ -24,5 +64,4 @@ type EventEntry struct {
 	Payload       []byte `json:"payload"`
 	Timestamp     uint64 `json:"timestamp,omitempty"`
 	SubID         string `json:"subId"`
-	Signature     string `json:"signature"`
 }

internal/events/timesorted.go → internal/events/api/timesorted.go

@@ -14,7 +14,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package events
+package api
 
 // TimeSorted base structure for time sortable things
 type TimeSorted struct {

internal/events/timesorted_test.go → internal/events/api/timesorted_test.go

@@ -14,7 +14,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package events
+package api
 
 import (
 	"sort"

internal/events/eventstream.go

@@ -27,7 +27,7 @@ import (
 
 	"github.com/hyperledger-labs/firefly-fabconnect/internal/auth"
 	"github.com/hyperledger-labs/firefly-fabconnect/internal/errors"
-	"github.com/hyperledger-labs/firefly-fabconnect/internal/events/api"
+	eventsapi "github.com/hyperledger-labs/firefly-fabconnect/internal/events/api"
 	"github.com/hyperledger-labs/firefly-fabconnect/internal/ws"
 
 	log "github.com/sirupsen/logrus"
@@ -59,7 +59,7 @@ const (
 
 // StreamInfo configures the stream to perform an action for each event
 type StreamInfo struct {
-	TimeSorted
+	eventsapi.TimeSorted
 	ID                   string               `json:"id"`
 	Name                 string               `json:"name,omitempty"`
 	Path                 string               `json:"path"`
@@ -111,7 +111,7 @@ type eventStream struct {
 }
 
 type eventStreamAction interface {
-	attemptBatch(batchNumber, attempt uint64, events []*api.EventEntry) error
+	attemptBatch(batchNumber, attempt uint64, events []*eventsapi.EventEntry) error
 }
 
 func validateWebSocket(w *webSocketActionInfo) error {
@@ -570,7 +570,7 @@ func (a *eventStream) processBatch(batchNumber uint64, events []*eventData) {
 		attempt++
 		log.Infof("%s: Batch %d initiated with %d events. FirstBlock=%d LastBlock=%d", a.spec.ID, batchNumber, len(events), events[0].event.BlockNumber, events[len(events)-1].event.BlockNumber)
 		a.updateWG.Add(1)
-		eventEntries := make([]*api.EventEntry, len(events))
+		eventEntries := make([]*eventsapi.EventEntry, len(events))
 		for i, entry := range events {
 			eventEntries[i] = entry.event
 		}
@@ -611,7 +611,7 @@ func (a *eventStream) processBatch(batchNumber uint64, events []*eventData) {
 
 // performActionWithRetry performs an action, with exponential backoff retry up
 // to a given threshold
-func (a *eventStream) performActionWithRetry(batchNumber uint64, events []*api.EventEntry) (err error) {
+func (a *eventStream) performActionWithRetry(batchNumber uint64, events []*eventsapi.EventEntry) (err error) {
 	startTime := time.Now()
 	endTime := startTime.Add(time.Duration(a.spec.RetryTimeoutSec) * time.Second)
 	delay := a.initialRetryDelay

internal/events/evtprocessor.go

@@ -63,14 +63,15 @@ func (ep *evtProcessor) initBlockHWM(intVal uint64) {
 	ep.hwmSync.Unlock()
 }
 
-func (ep *evtProcessor) processEventEntry(subInfo string, entry *api.EventEntry) (err error) {
+func (ep *evtProcessor) processEventEntry(subID string, entry *api.EventEntry) (err error) {
+	entry.SubID = subID
 	result := eventData{
 		event:         entry,
 		batchComplete: ep.batchComplete,
 	}
 
 	// Ok, now we have the full event in a friendly map output. Pass it down to the stream
-	log.Infof("%s: Dispatching event. BlockNumber=%d TxId=%s", subInfo, result.event.BlockNumber, result.event.TransactionId)
+	log.Infof("%s: Dispatching event. BlockNumber=%d TxId=%s", subID, result.event.BlockNumber, result.event.TransactionId)
 	ep.stream.handleEvent(&result)
 	return nil
 }

internal/events/submanager.go

@@ -25,6 +25,7 @@ import (
 
 	"github.com/hyperledger-labs/firefly-fabconnect/internal/conf"
 	"github.com/hyperledger-labs/firefly-fabconnect/internal/errors"
+	eventsapi "github.com/hyperledger-labs/firefly-fabconnect/internal/events/api"
 	"github.com/hyperledger-labs/firefly-fabconnect/internal/fabric"
 	"github.com/hyperledger-labs/firefly-fabconnect/internal/kvstore"
 	restutil "github.com/hyperledger-labs/firefly-fabconnect/internal/rest/utils"
@@ -59,9 +60,9 @@ type SubscriptionManager interface {
 	SuspendStream(res http.ResponseWriter, req *http.Request, params httprouter.Params) (*map[string]string, *restutil.RestError)
 	ResumeStream(res http.ResponseWriter, req *http.Request, params httprouter.Params) (*map[string]string, *restutil.RestError)
 	DeleteStream(res http.ResponseWriter, req *http.Request, params httprouter.Params) (*map[string]string, *restutil.RestError)
-	AddSubscription(res http.ResponseWriter, req *http.Request, params httprouter.Params) (*SubscriptionInfo, *restutil.RestError)
-	Subscriptions(res http.ResponseWriter, req *http.Request, params httprouter.Params) []*SubscriptionInfo
-	SubscriptionByID(res http.ResponseWriter, req *http.Request, params httprouter.Params) (*SubscriptionInfo, *restutil.RestError)
+	AddSubscription(res http.ResponseWriter, req *http.Request, params httprouter.Params) (*eventsapi.SubscriptionInfo, *restutil.RestError)
+	Subscriptions(res http.ResponseWriter, req *http.Request, params httprouter.Params) []*eventsapi.SubscriptionInfo
+	SubscriptionByID(res http.ResponseWriter, req *http.Request, params httprouter.Params) (*eventsapi.SubscriptionInfo, *restutil.RestError)
 	ResetSubscription(res http.ResponseWriter, req *http.Request, params httprouter.Params) (*map[string]string, *restutil.RestError)
 	DeleteSubscription(res http.ResponseWriter, req *http.Request, params httprouter.Params) (*map[string]string, *restutil.RestError)
 	Close()
@@ -102,7 +103,7 @@ func NewSubscriptionManager(config *conf.EventstreamConf, rpc fabric.RPCClient,
 }
 
 // SubscriptionByID used externally to get serializable details
-func (s *subscriptionMGR) SubscriptionByID(res http.ResponseWriter, req *http.Request, params httprouter.Params) (*SubscriptionInfo, *restutil.RestError) {
+func (s *subscriptionMGR) SubscriptionByID(res http.ResponseWriter, req *http.Request, params httprouter.Params) (*eventsapi.SubscriptionInfo, *restutil.RestError) {
 	id := params.ByName("subscriptionId")
 	sub, err := s.subscriptionByID(id)
 	if err != nil {
@@ -112,17 +113,17 @@ func (s *subscriptionMGR) SubscriptionByID(res http.ResponseWriter, req *http.Re
 }
 
 // Subscriptions used externally to get list subscriptions
-func (s *subscriptionMGR) Subscriptions(res http.ResponseWriter, req *http.Request, params httprouter.Params) []*SubscriptionInfo {
-	l := make([]*SubscriptionInfo, 0, len(s.subscriptions))
+func (s *subscriptionMGR) Subscriptions(res http.ResponseWriter, req *http.Request, params httprouter.Params) []*eventsapi.SubscriptionInfo {
+	l := make([]*eventsapi.SubscriptionInfo, 0, len(s.subscriptions))
 	for _, sub := range s.subscriptions {
 		l = append(l, sub.info)
 	}
 	return l
 }
 
 // AddSubscription adds a new subscription
-func (s *subscriptionMGR) AddSubscription(res http.ResponseWriter, req *http.Request, params httprouter.Params) (*SubscriptionInfo, *restutil.RestError) {
-	var spec SubscriptionInfo
+func (s *subscriptionMGR) AddSubscription(res http.ResponseWriter, req *http.Request, params httprouter.Params) (*eventsapi.SubscriptionInfo, *restutil.RestError) {
+	var spec eventsapi.SubscriptionInfo
 	if err := json.NewDecoder(req.Body).Decode(&spec); err != nil {
 		return nil, restutil.NewRestError(fmt.Sprintf(errors.RESTGatewaySubscriptionInvalid, err), 400)
 	}
@@ -132,7 +133,7 @@ func (s *subscriptionMGR) AddSubscription(res http.ResponseWriter, req *http.Req
 	if spec.Stream == "" {
 		return nil, restutil.NewRestError(`Missing required parameter "stream"`, 400)
 	}
-	spec.TimeSorted = TimeSorted{
+	spec.TimeSorted = eventsapi.TimeSorted{
 		CreatedISO8601: time.Now().UTC().Format(time.RFC3339),
 	}
 	spec.ID = subIDPrefix + utils.UUIDv4()
@@ -142,6 +143,12 @@ func (s *subscriptionMGR) AddSubscription(res http.ResponseWriter, req *http.Req
 		// user did not set an initial block, default to newest
 		spec.FromBlock = FromBlockNewest
 	}
+	if spec.Filter.BlockType == "" {
+		spec.Filter.BlockType = eventsapi.BlockType_TX
+	}
+	if spec.Filter.EventFilter == "" && spec.Filter.ChaincodeId != "" {
+		spec.Filter.EventFilter = ".*"
+	}
 	// Create it
 	sub, err := newSubscription(s, s.rpc, &spec)
 	if err != nil {
@@ -221,7 +228,7 @@ func (s *subscriptionMGR) deleteSubscription(sub *subscription) error {
 	return nil
 }
 
-func (s *subscriptionMGR) storeSubscription(info *SubscriptionInfo) (*SubscriptionInfo, error) {
+func (s *subscriptionMGR) storeSubscription(info *eventsapi.SubscriptionInfo) (*eventsapi.SubscriptionInfo, error) {
 	infoBytes, _ := json.MarshalIndent(info, "", "  ")
 	if err := s.db.Put(info.ID, infoBytes); err != nil {
 		return nil, errors.Errorf(errors.EventStreamsSubscribeStoreFailed, err)
@@ -472,7 +479,7 @@ func (s *subscriptionMGR) recoverSubscriptions() {
 	for iSub.Next() {
 		k := iSub.Key()
 		if strings.HasPrefix(k, subIDPrefix) {
-			var subInfo SubscriptionInfo
+			var subInfo eventsapi.SubscriptionInfo
 			err := json.Unmarshal(iSub.Value(), &subInfo)
 			if err != nil {
 				log.Errorf("Failed to recover subscription '%s': %s", string(iSub.Value()), err)