fix(slack): replace slack GetChannels by GetConversations

go.mod

@@ -33,7 +33,7 @@ require (
 	github.com/mitchellh/colorstring v0.0.0-20150917214807-8631ce90f286
 	github.com/mitchellh/go-homedir v1.0.0
 	github.com/mohae/deepcopy v0.0.0-20170603005431-491d3605edfb
-	github.com/nlopes/slack v0.1.0
+	github.com/nlopes/slack v0.4.0
 	github.com/onsi/ginkgo v1.9.0 // indirect
 	github.com/onsi/gomega v1.4.3 // indirect
 	github.com/petergtz/pegomock v2.9.0+incompatible

go.sum

@@ -138,6 +138,8 @@ github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 h1:EGx4pi6eqNxGa
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
 github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
 github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
+github.com/gorilla/websocket v1.2.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
+github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0Ufc=
 github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/graph-gophers/graphql-go v0.0.0-20191115155744-f33e81362277/go.mod h1:9CQHMSxwO4MprSdzoIEobiHpoLtHm77vfxsvsIN5Vuc=
 github.com/grpc-ecosystem/go-grpc-middleware v1.0.0/go.mod h1:FiyG127CGDf3tlThmgyCl78X/SZQqEOJBCDaAfeWzPs=
@@ -257,8 +259,10 @@ github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3Rllmb
 github.com/mohae/deepcopy v0.0.0-20170603005431-491d3605edfb h1:e+l77LJOEqXTIQihQJVkA6ZxPOUmfPM5e4H7rcpgtSk=
 github.com/mohae/deepcopy v0.0.0-20170603005431-491d3605edfb/go.mod h1:TaXosZuwdSHYgviHp1DAtfrULt5eUgsSMsZf+YrPgl8=
 github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
-github.com/nlopes/slack v0.1.0 h1:YnVhdQvWT/m0TDh3VNpSoCBDlD7Y4pz1qUqb/NrNyUs=
-github.com/nlopes/slack v0.1.0/go.mod h1:jVI4BBK3lSktibKahxBF74txcK2vyvkza1z/+rRnVAM=
+github.com/nlopes/slack v0.4.0 h1:OVnHm7lv5gGT5gkcHsZAyw++oHVFihbjWbL3UceUpiA=
+github.com/nlopes/slack v0.4.0/go.mod h1:jVI4BBK3lSktibKahxBF74txcK2vyvkza1z/+rRnVAM=
+github.com/nlopes/slack v0.6.0 h1:jt0jxVQGhssx1Ib7naAOZEZcGdtIhTzkP0nopK0AsRA=
+github.com/nlopes/slack v0.6.0/go.mod h1:JzQ9m3PMAqcpeCam7UaHSuBuupz7CmpjehYMayT6YOk=
 github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn4U=
 github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
 github.com/onsi/ginkgo v1.9.0 h1:SZjF721BByVj8QH636/8S2DnX4n0Re3SteMmw3N+tzc=

server/events/webhooks/slack_client.go

@@ -40,7 +40,7 @@ type SlackClient interface {
 // we can mock it during tests.
 type UnderlyingSlackClient interface {
 	AuthTest() (response *slack.AuthTestResponse, error error)
-	GetChannels(excludeArchived bool) ([]slack.Channel, error)
+	GetConversations(conversationParams *slack.GetConversationsParameters) (channels []slack.Channel, nextCursor string, err error)
 	PostMessage(channel, text string, parameters slack.PostMessageParameters) (string, string, error)
 }
 
@@ -66,15 +66,27 @@ func (d *DefaultSlackClient) TokenIsSet() bool {
 }
 
 func (d *DefaultSlackClient) ChannelExists(channelName string) (bool, error) {
-	channels, err := d.Slack.GetChannels(true)
-	if err != nil {
-		return false, err
-	}
-	for _, channel := range channels {
-		if channel.Name == channelName {
-			return true, nil
+	var (
+		cursor   string
+		channels []slack.Channel
+		err      error
+	)
+
+	for {
+		channels, cursor, err = d.Slack.GetConversations(&slack.GetConversationsParameters{Cursor: cursor})
+		if err != nil {
+			return false, err
+		}
+		for _, channel := range channels {
+			if channel.Name == channelName {
+				return true, nil
+			}
+		}
+		if cursor == "" {
+			break
 		}
 	}
+
 	return false, nil
 }