Increase default channel capacity to 100, and allow it to be set in RunOptions

chat.go

@@ -52,8 +52,13 @@ func getNewMessages(k *Keybase, c chan<- ChatAPI, execOptions []string) {
 // Run runs `keybase chat api-listen`, and passes incoming messages to the message handler func
 func (k *Keybase) Run(handler func(ChatAPI), options ...RunOptions) {
 	var heartbeatFreq int64
+	var channelCapacity = 100
+
 	runOptions := make([]string, 0)
 	if len(options) > 0 {
+		if options[0].Capacity > 0 {
+			channelCapacity = options[0].Capacity
+		}
 		if options[0].Heartbeat > 0 {
 			heartbeatFreq = options[0].Heartbeat
 		}
@@ -76,7 +81,7 @@ func (k *Keybase) Run(handler func(ChatAPI), options ...RunOptions) {
 			runOptions = append(runOptions, createFilterString(options[0].FilterChannel))
 		}
 	}
-	c := make(chan ChatAPI, 50)
+	c := make(chan ChatAPI, channelCapacity)
 	defer close(c)
 	if heartbeatFreq > 0 {
 		go heartbeat(c, time.Duration(heartbeatFreq)*time.Minute)

types.go

@@ -2,6 +2,7 @@ package keybase
 
 // RunOptions holds a set of options to be passed to Run
 type RunOptions struct {
+	Capacity       int       // Channel capacity for the buffered channel that holds messages. Defaults to 100 if not set
 	Heartbeat      int64     // Send a heartbeat through the channel every X minutes (0 = off)
 	Local          bool      // Subscribe to local messages
 	HideExploding  bool      // Ignore exploding messages