initial attempt at modular transports, fails with segfault

data/data.go

@@ -9,8 +9,9 @@ import (
 	shell "github.com/ipfs/go-ipfs-api"
 )
 
-type Record struct {
-	Shell *shell.Message
+type Storage interface {
+	Publish(o []byte) string
+	Retrieve(id string) []byte
 }
 
 func Publish(object []byte) string {
@@ -46,22 +47,3 @@ func Retrieve(hash string) []byte {
 	}
 	return content
 }
-
-func PsSubscribe(topic string) *shell.PubSubSubscription {
-	sh := shell.NewShell("localhost:5001")
-	sub, err := sh.PubSubSubscribe(topic)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "error: %s", err)
-		os.Exit(1)
-	}
-	return sub
-}
-
-func PsPublish(topic, data string) error {
-	sh := shell.NewShell("localhost:5001")
-	err := sh.PubSubPublish(topic, data)
-	if err != nil {
-		return err
-	}
-	return nil
-}