Streams tenancy (#91)

* fixup streams stuff

* use cache instead of pg in streams

* hash out issuer streams test

* fix compile error

streams/main.go

@@ -1,43 +1,27 @@
 package main
 
 import (
-	"database/sql"
 	"time"
 
-	"github.com/micro/services/streams/handler"
-	pb "github.com/micro/services/streams/proto"
-
 	"github.com/micro/micro/v3/service"
-	"github.com/micro/micro/v3/service/config"
 	"github.com/micro/micro/v3/service/events"
 	"github.com/micro/micro/v3/service/logger"
+	"github.com/micro/services/pkg/cache"
+	"github.com/micro/services/streams/handler"
+	pb "github.com/micro/services/streams/proto"
 )
 
-var dbAddress = "postgresql://postgres:postgres@localhost:5432/streams?sslmode=disable"
-
 func main() {
 	// Create service
 	srv := service.New(
 		service.Name("streams"),
-		service.Version("latest"),
 	)
 
-	// Connect to the database
-	cfg, err := config.Get("streams.database")
-	if err != nil {
-		logger.Fatalf("Error loading config: %v", err)
-	}
-	addr := cfg.String(dbAddress)
-	sqlDB, err := sql.Open("pgx", addr)
-	if err != nil {
-		logger.Fatalf("Failed to open connection to DB %s", err)
-	}
-
 	h := &handler.Streams{
+		Cache:  cache.DefaultCache,
 		Events: events.DefaultStream,
 		Time:   time.Now,
 	}
-	h.DBConn(sqlDB).Migrations(&handler.Token{})
 
 	// Register handler
 	pb.RegisterStreamsHandler(srv.Server(), h)