Upgrade Go client

Signed-off-by: Derek Collison <derek@nats.io>

go.mod

@@ -7,7 +7,7 @@ require (
 	github.com/klauspost/compress v1.13.4
 	github.com/minio/highwayhash v1.0.1
 	github.com/nats-io/jwt/v2 v2.1.0
-	github.com/nats-io/nats.go v1.13.0
+	github.com/nats-io/nats.go v1.13.1-0.20211018182449-f2416a8b1483
 	github.com/nats-io/nkeys v0.3.0
 	github.com/nats-io/nuid v1.0.1
 	golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e

go.sum

@@ -16,8 +16,8 @@ github.com/minio/highwayhash v1.0.1 h1:dZ6IIu8Z14VlC0VpfKofAhCy74wu/Qb5gcn52yWoz
 github.com/minio/highwayhash v1.0.1/go.mod h1:BQskDq+xkJ12lmlUUi7U0M5Swg3EWR+dLTk+kldvVxY=
 github.com/nats-io/jwt/v2 v2.1.0 h1:1UbfD5g1xTdWmSeRV8bh/7u+utTiBsRtWhLl1PixZp4=
 github.com/nats-io/jwt/v2 v2.1.0/go.mod h1:0tqz9Hlu6bCBFLWAASKhE5vUA4c24L9KPUUgvwumE/k=
-github.com/nats-io/nats.go v1.13.0 h1:LvYqRB5epIzZWQp6lmeltOOZNLqCvm4b+qfvzZO03HE=
-github.com/nats-io/nats.go v1.13.0/go.mod h1:BPko4oXsySz4aSWeFgOHLZs3G4Jq4ZAyE6/zMCxRT6w=
+github.com/nats-io/nats.go v1.13.1-0.20211018182449-f2416a8b1483 h1:GMx3ZOcMEVM5qnUItQ4eJyQ6ycwmIEB/VC/UxvdevE0=
+github.com/nats-io/nats.go v1.13.1-0.20211018182449-f2416a8b1483/go.mod h1:BPko4oXsySz4aSWeFgOHLZs3G4Jq4ZAyE6/zMCxRT6w=
 github.com/nats-io/nkeys v0.3.0 h1:cgM5tL53EvYRU+2YLXIK0G2mJtK12Ft9oeooSZMA2G8=
 github.com/nats-io/nkeys v0.3.0/go.mod h1:gvUNGjVcM2IPr5rCsRsC6Wb3Hr2CQAm08dsxtV6A5y4=
 github.com/nats-io/nuid v1.0.1 h1:5iA8DT8V7q8WK2EScv2padNa/rTESc1KdnPw4TC2paw=

vendor/github.com/nats-io/nats.go/go_test.mod

@@ -4,7 +4,7 @@ go 1.16
 
 require (
 	github.com/golang/protobuf v1.4.2
-	github.com/nats-io/nats-server/v2 v2.6.2-0.20211007142333-41a9d082f8da
+	github.com/nats-io/nats-server/v2 v2.6.3-0.20211014173021-3fbf9ddcbc6a
 	github.com/nats-io/nkeys v0.3.0
 	github.com/nats-io/nuid v1.0.1
 	google.golang.org/protobuf v1.23.0

vendor/github.com/nats-io/nats.go/go_test.sum

@@ -17,9 +17,9 @@ github.com/minio/highwayhash v1.0.1 h1:dZ6IIu8Z14VlC0VpfKofAhCy74wu/Qb5gcn52yWoz
 github.com/minio/highwayhash v1.0.1/go.mod h1:BQskDq+xkJ12lmlUUi7U0M5Swg3EWR+dLTk+kldvVxY=
 github.com/nats-io/jwt/v2 v2.1.0 h1:1UbfD5g1xTdWmSeRV8bh/7u+utTiBsRtWhLl1PixZp4=
 github.com/nats-io/jwt/v2 v2.1.0/go.mod h1:0tqz9Hlu6bCBFLWAASKhE5vUA4c24L9KPUUgvwumE/k=
-github.com/nats-io/nats-server/v2 v2.6.2-0.20211007142333-41a9d082f8da h1:0snsE4pD2VKIsFiRMRkHFY+SJZVbT7/eZJ1lOt5XuLA=
-github.com/nats-io/nats-server/v2 v2.6.2-0.20211007142333-41a9d082f8da/go.mod h1:ubcDOPViqaQcNvJVzoX9FIDxAxyJDTItw07lqFCzC80=
-github.com/nats-io/nats.go v1.12.3/go.mod h1:BPko4oXsySz4aSWeFgOHLZs3G4Jq4ZAyE6/zMCxRT6w=
+github.com/nats-io/nats-server/v2 v2.6.3-0.20211014173021-3fbf9ddcbc6a h1:9cFe3XP6CAOBUIPFPV3/KmTPyL/PWU1INdsnPabQmrw=
+github.com/nats-io/nats-server/v2 v2.6.3-0.20211014173021-3fbf9ddcbc6a/go.mod h1:CNi6dJQ5H+vWqaoWKjCGtqBt7ai/xOTLiocUqhK6ews=
+github.com/nats-io/nats.go v1.13.0/go.mod h1:BPko4oXsySz4aSWeFgOHLZs3G4Jq4ZAyE6/zMCxRT6w=
 github.com/nats-io/nkeys v0.3.0 h1:cgM5tL53EvYRU+2YLXIK0G2mJtK12Ft9oeooSZMA2G8=
 github.com/nats-io/nkeys v0.3.0/go.mod h1:gvUNGjVcM2IPr5rCsRsC6Wb3Hr2CQAm08dsxtV6A5y4=
 github.com/nats-io/nuid v1.0.1 h1:5iA8DT8V7q8WK2EScv2padNa/rTESc1KdnPw4TC2paw=

vendor/github.com/nats-io/nats.go/js.go

@@ -214,6 +214,11 @@ type jsOpts struct {
 	aecb MsgErrHandler
 	// Maximum in flight.
 	maxap int
+	// the domain that produced the pre
+	domain string
+	// enables protocol tracing
+	trace       TraceCB
+	shouldTrace bool
 }
 
 const (
@@ -252,18 +257,55 @@ func (opt jsOptFn) configureJSContext(opts *jsOpts) error {
 	return opt(opts)
 }
 
+// TraceOperation indicates the direction of traffic flow to TraceCB
+type TraceOperation int
+
+const (
+	// TraceSent indicate the payload is being sent to subj
+	TraceSent TraceOperation = 0
+	// TraceReceived indicate the payload is being received on subj
+	TraceReceived TraceOperation = 1
+)
+
+// TraceCB is called to trace API interactions for the JetStream Context
+type TraceCB func(op TraceOperation, subj string, payload []byte, hdr Header)
+
+// TraceFunc enables tracing of JetStream API interactions
+func TraceFunc(cb TraceCB) JSOpt {
+	return jsOptFn(func(js *jsOpts) error {
+		js.trace = cb
+		js.shouldTrace = true
+		return nil
+	})
+}
+
 // Domain changes the domain part of JetSteam API prefix.
 func Domain(domain string) JSOpt {
-	return APIPrefix(fmt.Sprintf(jsDomainT, domain))
+	if domain == _EMPTY_ {
+		return APIPrefix(_EMPTY_)
+	}
+
+	return jsOptFn(func(js *jsOpts) error {
+		js.domain = domain
+		js.pre = fmt.Sprintf(jsDomainT, domain)
+
+		return nil
+	})
+
 }
 
 // APIPrefix changes the default prefix used for the JetStream API.
 func APIPrefix(pre string) JSOpt {
 	return jsOptFn(func(js *jsOpts) error {
+		if pre == _EMPTY_ {
+			return nil
+		}
+
 		js.pre = pre
 		if !strings.HasSuffix(js.pre, ".") {
 			js.pre = js.pre + "."
 		}
+
 		return nil
 	})
 }
@@ -1398,12 +1440,15 @@ func (js *js) subscribe(subj, queue string, cb MsgHandler, ch chan *Msg, isSync,
 
 		var ccSubj string
 		if isDurable {
-			ccSubj = fmt.Sprintf(apiDurableCreateT, stream, cfg.Durable)
+			ccSubj = js.apiSubj(fmt.Sprintf(apiDurableCreateT, stream, cfg.Durable))
 		} else {
-			ccSubj = fmt.Sprintf(apiConsumerCreateT, stream)
+			ccSubj = js.apiSubj(fmt.Sprintf(apiConsumerCreateT, stream))
 		}
 
-		resp, err := nc.Request(js.apiSubj(ccSubj), j, js.opts.wait)
+		if js.opts.shouldTrace {
+			js.opts.trace(TraceSent, ccSubj, j, nil)
+		}
+		resp, err := nc.Request(ccSubj, j, js.opts.wait)
 		if err != nil {
 			cleanUpSub()
 			if err == ErrNoResponders {
@@ -1411,6 +1456,10 @@ func (js *js) subscribe(subj, queue string, cb MsgHandler, ch chan *Msg, isSync,
 			}
 			return nil, err
 		}
+		if js.opts.shouldTrace {
+			js.opts.trace(TraceReceived, ccSubj, resp.Data, resp.Header)
+		}
+
 		var cinfo consumerResponse
 		err = json.Unmarshal(resp.Data, &cinfo)
 		if err != nil {
@@ -1627,6 +1676,26 @@ func (sub *Subscription) resetOrderedConsumer(sseq uint64) {
 		return
 	}
 
+	var maxStr string
+	// If there was an AUTO_UNSUB done, we need to adjust the new value
+	// to send after the SUB for the new sid.
+	if sub.max > 0 {
+		if sub.jsi.fciseq < sub.max {
+			adjustedMax := sub.max - sub.jsi.fciseq
+			maxStr = strconv.Itoa(int(adjustedMax))
+		} else {
+			// We are already at the max, so we should just unsub the
+			// existing sub and be done
+			go func(sid int64) {
+				nc.mu.Lock()
+				nc.bw.appendString(fmt.Sprintf(unsubProto, sid, _EMPTY_))
+				nc.kickFlusher()
+				nc.mu.Unlock()
+			}(sub.sid)
+			return
+		}
+	}
+
 	// Quick unsubscribe. Since we know this is a simple push subscriber we do in place.
 	osid := sub.applyNewSID()
 
@@ -1646,6 +1715,9 @@ func (sub *Subscription) resetOrderedConsumer(sseq uint64) {
 		nc.mu.Lock()
 		nc.bw.appendString(fmt.Sprintf(unsubProto, osid, _EMPTY_))
 		nc.bw.appendString(fmt.Sprintf(subProto, newDeliver, _EMPTY_, nsid))
+		if maxStr != _EMPTY_ {
+			nc.bw.appendString(fmt.Sprintf(unsubProto, nsid, maxStr))
+		}
 		nc.kickFlusher()
 		nc.mu.Unlock()
 
@@ -2405,7 +2477,7 @@ func (js *js) getConsumerInfo(stream, consumer string) (*ConsumerInfo, error) {
 
 func (js *js) getConsumerInfoContext(ctx context.Context, stream, consumer string) (*ConsumerInfo, error) {
 	ccInfoSubj := fmt.Sprintf(apiConsumerInfoT, stream, consumer)
-	resp, err := js.nc.RequestWithContext(ctx, js.apiSubj(ccInfoSubj), nil)
+	resp, err := js.apiRequestWithContext(ctx, js.apiSubj(ccInfoSubj), nil)
 	if err != nil {
 		if err == ErrNoResponders {
 			err = ErrJetStreamNotEnabled
@@ -2426,11 +2498,27 @@ func (js *js) getConsumerInfoContext(ctx context.Context, stream, consumer strin
 	return info.ConsumerInfo, nil
 }
 
+// a RequestWithContext with tracing via TraceCB
+func (js *js) apiRequestWithContext(ctx context.Context, subj string, data []byte) (*Msg, error) {
+	if js.opts.shouldTrace {
+		js.opts.trace(TraceSent, subj, data, nil)
+	}
+	resp, err := js.nc.RequestWithContext(ctx, subj, data)
+	if err != nil {
+		return nil, err
+	}
+	if js.opts.shouldTrace {
+		js.opts.trace(TraceReceived, subj, resp.Data, resp.Header)
+	}
+
+	return resp, nil
+}
+
 func (m *Msg) checkReply() (*js, *jsSub, error) {
 	if m == nil || m.Sub == nil {
 		return nil, nil, ErrMsgNotBound
 	}
-	if m.Reply == "" {
+	if m.Reply == _EMPTY_ {
 		return nil, nil, ErrMsgNoReply
 	}
 	sub := m.Sub

vendor/github.com/nats-io/nats.go/jsm.go

@@ -188,7 +188,7 @@ func (js *js) AccountInfo(opts ...JSOpt) (*AccountInfo, error) {
 		defer cancel()
 	}
 
-	resp, err := js.nc.RequestWithContext(o.ctx, js.apiSubj(apiAccountInfo), nil)
+	resp, err := js.apiRequestWithContext(o.ctx, js.apiSubj(apiAccountInfo), nil)
 	if err != nil {
 		// todo maybe nats server should never have no responder on this subject and always respond if they know there is no js to be had
 		if err == ErrNoResponders {
@@ -251,7 +251,7 @@ func (js *js) AddConsumer(stream string, cfg *ConsumerConfig, opts ...JSOpt) (*C
 		ccSubj = fmt.Sprintf(apiConsumerCreateT, stream)
 	}
 
-	resp, err := js.nc.RequestWithContext(o.ctx, js.apiSubj(ccSubj), req)
+	resp, err := js.apiRequestWithContext(o.ctx, js.apiSubj(ccSubj), req)
 	if err != nil {
 		if err == ErrNoResponders {
 			err = ErrJetStreamNotEnabled
@@ -293,7 +293,7 @@ func (js *js) DeleteConsumer(stream, consumer string, opts ...JSOpt) error {
 	}
 
 	dcSubj := js.apiSubj(fmt.Sprintf(apiConsumerDeleteT, stream, consumer))
-	r, err := js.nc.RequestWithContext(o.ctx, dcSubj, nil)
+	r, err := js.apiRequestWithContext(o.ctx, dcSubj, nil)
 	if err != nil {
 		return err
 	}
@@ -376,7 +376,7 @@ func (c *consumerLister) Next() bool {
 	}
 
 	clSubj := c.js.apiSubj(fmt.Sprintf(apiConsumerListT, c.stream))
-	r, err := c.js.nc.RequestWithContext(ctx, clSubj, req)
+	r, err := c.js.apiRequestWithContext(ctx, clSubj, req)
 	if err != nil {
 		c.err = err
 		return false
@@ -473,7 +473,7 @@ func (c *consumerNamesLister) Next() bool {
 	}
 
 	clSubj := c.js.apiSubj(fmt.Sprintf(apiConsumerNamesT, c.stream))
-	r, err := c.js.nc.RequestWithContext(ctx, clSubj, nil)
+	r, err := c.js.apiRequestWithContext(ctx, clSubj, nil)
 	if err != nil {
 		c.err = err
 		return false
@@ -561,7 +561,7 @@ func (js *js) AddStream(cfg *StreamConfig, opts ...JSOpt) (*StreamInfo, error) {
 	}
 
 	csSubj := js.apiSubj(fmt.Sprintf(apiStreamCreateT, cfg.Name))
-	r, err := js.nc.RequestWithContext(o.ctx, csSubj, req)
+	r, err := js.apiRequestWithContext(o.ctx, csSubj, req)
 	if err != nil {
 		return nil, err
 	}
@@ -592,7 +592,7 @@ func (js *js) StreamInfo(stream string, opts ...JSOpt) (*StreamInfo, error) {
 	}
 
 	csSubj := js.apiSubj(fmt.Sprintf(apiStreamInfoT, stream))
-	r, err := js.nc.RequestWithContext(o.ctx, csSubj, nil)
+	r, err := js.apiRequestWithContext(o.ctx, csSubj, nil)
 	if err != nil {
 		return nil, err
 	}
@@ -676,7 +676,7 @@ func (js *js) UpdateStream(cfg *StreamConfig, opts ...JSOpt) (*StreamInfo, error
 	}
 
 	usSubj := js.apiSubj(fmt.Sprintf(apiStreamUpdateT, cfg.Name))
-	r, err := js.nc.RequestWithContext(o.ctx, usSubj, req)
+	r, err := js.apiRequestWithContext(o.ctx, usSubj, req)
 	if err != nil {
 		return nil, err
 	}
@@ -711,7 +711,7 @@ func (js *js) DeleteStream(name string, opts ...JSOpt) error {
 	}
 
 	dsSubj := js.apiSubj(fmt.Sprintf(apiStreamDeleteT, name))
-	r, err := js.nc.RequestWithContext(o.ctx, dsSubj, nil)
+	r, err := js.apiRequestWithContext(o.ctx, dsSubj, nil)
 	if err != nil {
 		return err
 	}
@@ -788,7 +788,7 @@ func (js *js) getMsg(name string, mreq *apiMsgGetRequest, opts ...JSOpt) (*RawSt
 	}
 
 	dsSubj := js.apiSubj(fmt.Sprintf(apiMsgGetT, name))
-	r, err := js.nc.RequestWithContext(o.ctx, dsSubj, req)
+	r, err := js.apiRequestWithContext(o.ctx, dsSubj, req)
 	if err != nil {
 		return nil, err
 	}
@@ -853,7 +853,7 @@ func (js *js) DeleteMsg(name string, seq uint64, opts ...JSOpt) error {
 	}
 
 	dsSubj := js.apiSubj(fmt.Sprintf(apiMsgDeleteT, name))
-	r, err := js.nc.RequestWithContext(o.ctx, dsSubj, req)
+	r, err := js.apiRequestWithContext(o.ctx, dsSubj, req)
 	if err != nil {
 		return err
 	}
@@ -905,7 +905,7 @@ func (js *js) purgeStream(stream string, req *streamPurgeRequest, opts ...JSOpt)
 	}
 
 	psSubj := js.apiSubj(fmt.Sprintf(apiStreamPurgeT, stream))
-	r, err := js.nc.RequestWithContext(o.ctx, psSubj, b)
+	r, err := js.apiRequestWithContext(o.ctx, psSubj, b)
 	if err != nil {
 		return err
 	}
@@ -970,7 +970,7 @@ func (s *streamLister) Next() bool {
 	}
 
 	slSubj := s.js.apiSubj(apiStreamList)
-	r, err := s.js.nc.RequestWithContext(ctx, slSubj, req)
+	r, err := s.js.apiRequestWithContext(ctx, slSubj, req)
 	if err != nil {
 		s.err = err
 		return false
@@ -1054,7 +1054,7 @@ func (l *streamNamesLister) Next() bool {
 		defer cancel()
 	}
 
-	r, err := l.js.nc.RequestWithContext(ctx, l.js.apiSubj(apiStreams), nil)
+	r, err := l.js.apiRequestWithContext(ctx, l.js.apiSubj(apiStreams), nil)
 	if err != nil {
 		l.err = err
 		return false
@@ -1132,7 +1132,7 @@ func getJSContextOpts(defs *jsOpts, opts ...JSOpt) (*jsOpts, context.CancelFunc,
 	if o.ctx == nil && o.wait > 0 {
 		o.ctx, cancel = context.WithTimeout(context.Background(), o.wait)
 	}
-	if o.pre == "" {
+	if o.pre == _EMPTY_ {
 		o.pre = defs.pre
 	}
 

vendor/github.com/nats-io/nats.go/kv.go

@@ -66,13 +66,33 @@ type KeyValue interface {
 	Bucket() string
 	// PurgeDeletes will remove all current delete markers.
 	PurgeDeletes(opts ...WatchOpt) error
+	// Status retrieves the status and configuration of a bucket
+	Status() (KeyValueStatus, error)
+}
+
+// KeyValueStatus is run-time status about a Key-Value bucket
+type KeyValueStatus interface {
+	// Bucket the name of the bucket
+	Bucket() string
+
+	// Values is how many messages are in the bucket, including historical values
+	Values() uint64
+
+	// History returns the configured history kept per key
+	History() int64
+
+	// TTL is how long the bucket keeps values for
+	TTL() time.Duration
+
+	// BackingStore indicates what technology is used for storage of the bucket
+	BackingStore() string
 }
 
 // KeyWatcher is what is returned when doing a watch.
 type KeyWatcher interface {
 	// Updates returns a channel to read any updates to entries.
 	Updates() <-chan KeyValueEntry
-	// Stop() will stop this watcher.
+	// Stop will stop this watcher.
 	Stop() error
 }
 
@@ -333,6 +353,18 @@ func keyValid(key string) bool {
 
 // Get returns the latest value for the key.
 func (kv *kvs) Get(key string) (KeyValueEntry, error) {
+	e, err := kv.get(key)
+	if err == ErrKeyDeleted {
+		return nil, ErrKeyNotFound
+	}
+	if err != nil {
+		return nil, err
+	}
+
+	return e, nil
+}
+
+func (kv *kvs) get(key string) (KeyValueEntry, error) {
 	if !keyValid(key) {
 		return nil, ErrInvalidKey
 	}
@@ -367,6 +399,7 @@ func (kv *kvs) Get(key string) (KeyValueEntry, error) {
 			entry.op = KeyValuePurge
 			return entry, ErrKeyDeleted
 		}
+
 	}
 
 	return entry, nil
@@ -400,11 +433,13 @@ func (kv *kvs) Create(key string, value []byte) (revision uint64, err error) {
 	if err == nil {
 		return v, nil
 	}
+
 	// TODO(dlc) - Since we have tombstones for DEL ops for watchers, this could be from that
 	// so we need to double check.
-	if e, err := kv.Get(key); err == ErrKeyDeleted {
+	if e, err := kv.get(key); err == ErrKeyDeleted {
 		return kv.Update(key, value, e.Revision())
 	}
+
 	return 0, err
 }
 
@@ -469,19 +504,30 @@ func (kv *kvs) PurgeDeletes(opts ...WatchOpt) error {
 	}
 	defer watcher.Stop()
 
+	var deleteMarkers []KeyValueEntry
 	for entry := range watcher.Updates() {
 		if entry == nil {
 			break
 		}
 		if op := entry.Operation(); op == KeyValueDelete || op == KeyValuePurge {
-			var b strings.Builder
+			deleteMarkers = append(deleteMarkers, entry)
+		}
+	}
+
+	var (
+		pr streamPurgeRequest
+		b  strings.Builder
+	)
+	// Do actual purges here.
+	for _, entry := range deleteMarkers {
 		b.WriteString(kv.pre)
 		b.WriteString(entry.Key())
-			err := kv.js.purgeStream(kv.stream, &streamPurgeRequest{Subject: b.String()})
+		pr.Subject = b.String()
+		err := kv.js.purgeStream(kv.stream, &pr)
 		if err != nil {
 			return err
 		}
-		}
+		b.Reset()
 	}
 	return nil
 }
@@ -642,3 +688,37 @@ func (kv *kvs) Watch(keys string, opts ...WatchOpt) (KeyWatcher, error) {
 func (kv *kvs) Bucket() string {
 	return kv.name
 }
+
+// KeyValueBucketStatus represents status of a Bucket, implements KeyValueStatus
+type KeyValueBucketStatus struct {
+	nfo    *StreamInfo
+	bucket string
+}
+
+// Bucket the name of the bucket
+func (s *KeyValueBucketStatus) Bucket() string { return s.bucket }
+
+// Values is how many messages are in the bucket, including historical values
+func (s *KeyValueBucketStatus) Values() uint64 { return s.nfo.State.Msgs }
+
+// History returns the configured history kept per key
+func (s *KeyValueBucketStatus) History() int64 { return s.nfo.Config.MaxMsgsPerSubject }
+
+// TTL is how long the bucket keeps values for
+func (s *KeyValueBucketStatus) TTL() time.Duration { return s.nfo.Config.MaxAge }
+
+// BackingStore indicates what technology is used for storage of the bucket
+func (s *KeyValueBucketStatus) BackingStore() string { return "JetStream" }
+
+// StreamInfo is the stream info retrieved to create the status
+func (s *KeyValueBucketStatus) StreamInfo() *StreamInfo { return s.nfo }
+
+// Status retrieves the status and configuration of a bucket
+func (kv *kvs) Status() (KeyValueStatus, error) {
+	nfo, err := kv.js.StreamInfo(kv.stream)
+	if err != nil {
+		return nil, err
+	}
+
+	return &KeyValueBucketStatus{nfo: nfo, bucket: kv.name}, nil
+}

vendor/github.com/nats-io/nats.go/object.go

@@ -31,6 +31,8 @@ import (
 	"github.com/nats-io/nuid"
 )
 
+// ObjectStoreManager creates, loads and deletes Object Stores
+//
 // Notice: Experimental Preview
 //
 // This functionality is EXPERIMENTAL and may be changed in later releases.
@@ -43,6 +45,9 @@ type ObjectStoreManager interface {
 	DeleteObjectStore(bucket string) error
 }
 
+// ObjectStore is a blob store capable of storing large objects efficiently in
+// JetStream streams
+//
 // Notice: Experimental Preview
 //
 // This functionality is EXPERIMENTAL and may be changed in later releases.
@@ -89,6 +94,9 @@ type ObjectStore interface {
 
 	// List will list all the objects in this store.
 	List(opts ...WatchOpt) ([]*ObjectInfo, error)
+
+	// Status retrieves run-time status about the backing store of the bucket.
+	Status() (ObjectStoreStatus, error)
 }
 
 type ObjectOpt interface {
@@ -109,7 +117,7 @@ func (ctx ContextOpt) configureObject(opts *objOpts) error {
 type ObjectWatcher interface {
 	// Updates returns a channel to read any updates to entries.
 	Updates() <-chan *ObjectInfo
-	// Stop() will stop this watcher.
+	// Stop will stop this watcher.
 	Stop() error
 }
 
@@ -132,6 +140,25 @@ type ObjectStoreConfig struct {
 	Replicas    int
 }
 
+type ObjectStoreStatus interface {
+	// Bucket is the name of the bucket
+	Bucket() string
+	// Description is the description supplied when creating the bucket
+	Description() string
+	// TTL indicates how long objects are kept in the bucket
+	TTL() time.Duration
+	// Storage indicates the underlying JetStream storage technology used to store data
+	Storage() StorageType
+	// Replicas indicates how many storage replicas are kept for the data in the bucket
+	Replicas() int
+	// Sealed indicates the stream is sealed and cannot be modified in any way
+	Sealed() bool
+	// Size is the combined size of all data in the bucket including metadata, in bytes
+	Size() uint64
+	// BackingStore provides details about the underlying storage
+	BackingStore() string
+}
+
 // ObjectMetaOptions
 type ObjectMetaOptions struct {
 	Link      *ObjectLink `json:"link,omitempty"`
@@ -857,6 +884,54 @@ func (obs *obs) List(opts ...WatchOpt) ([]*ObjectInfo, error) {
 	return objs, nil
 }
 
+// ObjectBucketStatus  represents status of a Bucket, implements ObjectStoreStatus
+type ObjectBucketStatus struct {
+	nfo    *StreamInfo
+	bucket string
+}
+
+// Bucket is the name of the bucket
+func (s *ObjectBucketStatus) Bucket() string { return s.bucket }
+
+// Description is the description supplied when creating the bucket
+func (s *ObjectBucketStatus) Description() string { return s.nfo.Config.Description }
+
+// TTL indicates how long objects are kept in the bucket
+func (s *ObjectBucketStatus) TTL() time.Duration { return s.nfo.Config.MaxAge }
+
+// Storage indicates the underlying JetStream storage technology used to store data
+func (s *ObjectBucketStatus) Storage() StorageType { return s.nfo.Config.Storage }
+
+// Replicas indicates how many storage replicas are kept for the data in the bucket
+func (s *ObjectBucketStatus) Replicas() int { return s.nfo.Config.Replicas }
+
+// Sealed indicates the stream is sealed and cannot be modified in any way
+func (s *ObjectBucketStatus) Sealed() bool { return s.nfo.Config.Sealed }
+
+// Size is the combined size of all data in the bucket including metadata, in bytes
+func (s *ObjectBucketStatus) Size() uint64 { return s.nfo.State.Bytes }
+
+// BackingStore indicates what technology is used for storage of the bucket
+func (s *ObjectBucketStatus) BackingStore() string { return "JetStream" }
+
+// StreamInfo is the stream info retrieved to create the status
+func (s *ObjectBucketStatus) StreamInfo() *StreamInfo { return s.nfo }
+
+// Status retrieves run-time status about a bucket
+func (obs *obs) Status() (ObjectStoreStatus, error) {
+	nfo, err := obs.js.StreamInfo(obs.stream)
+	if err != nil {
+		return nil, err
+	}
+
+	status := &ObjectBucketStatus{
+		nfo:    nfo,
+		bucket: obs.name,
+	}
+
+	return status, nil
+}
+
 // Read impl.
 func (o *objResult) Read(p []byte) (n int, err error) {
 	o.Lock()
@@ -880,7 +955,7 @@ func (o *objResult) Read(p []byte) (n int, err error) {
 	}
 
 	r := o.r.(net.Conn)
-	r.SetReadDeadline(time.Now().Add(200 * time.Millisecond))
+	r.SetReadDeadline(time.Now().Add(2 * time.Second))
 	n, err = r.Read(p)
 	if err, ok := err.(net.Error); ok && err.Timeout() {
 		if ctx := o.ctx; ctx != nil {

vendor/modules.txt

@@ -9,7 +9,7 @@ github.com/minio/highwayhash
 # github.com/nats-io/jwt/v2 v2.1.0
 ## explicit
 github.com/nats-io/jwt/v2
-# github.com/nats-io/nats.go v1.13.0
+# github.com/nats-io/nats.go v1.13.1-0.20211018182449-f2416a8b1483
 ## explicit
 github.com/nats-io/nats.go
 github.com/nats-io/nats.go/encoders/builtin