Add zulip webhook

webhook/webhook.go

@@ -0,0 +1,20 @@
+// Package webhook provides a generic webhook interface for sending messages
+// with channel, topic, and message parameters.
+package webhook
+
+import (
+	"time"
+)
+
+// WebhookMessage represents the structure of a webhook message
+type WebhookMessage struct {
+	Channel   string    `json:"channel"`
+	Topic     string    `json:"topic"`
+	Message   string    `json:"message"`
+	Timestamp time.Time `json:"timestamp"`
+}
+
+// WebhookInterface defines the contract for webhook operations
+type WebhookInterface interface {
+	Post(channel, topic, message string) error
+}