diff --git a/server/server.go b/server/server.go
index 5bc101b..2f11b49 100644
--- a/server/server.go
+++ b/server/server.go
@@ -103,6 +103,11 @@ func NewServer(ctx context.Context, profile *profile.Profile, store *store.Store
 	}
 	s.Secret = secret
 
+	// Register healthz endpoint.
+	e.GET("/healthz", func(c echo.Context) error {
+		return c.String(http.StatusOK, "Service ready.")
+	})
+
 	rootGroup := e.Group("")
 	// Register API v1 routes.
 	apiV1Service := apiv1.NewAPIV1Service(profile, store, licenseService)
diff --git a/store/db/postgres/common.go b/store/db/postgres/common.go
new file mode 100644
index 0000000..2c05e4b
--- /dev/null
+++ b/store/db/postgres/common.go
@@ -0,0 +1,18 @@
+package postgres
+
+import (
+	"fmt"
+	"strings"
+)
+
+func placeholder(n int) string {
+	return "$" + fmt.Sprint(n)
+}
+
+func placeholders(n int) string {
+	list := []string{}
+	for i := 0; i < n; i++ {
+		list = append(list, placeholder(i+1))
+	}
+	return strings.Join(list, ", ")
+}
diff --git a/store/db/postgres/memo.go b/store/db/postgres/memo.go
index 7bce42a..3548b19 100644
--- a/store/db/postgres/memo.go
+++ b/store/db/postgres/memo.go
@@ -171,11 +171,3 @@ func (d *DB) DeleteMemo(ctx context.Context, delete *store.DeleteMemo) error {
 	}
 	return nil
 }
-
-func placeholders(n int) string {
-	list := []string{}
-	for i := 0; i < n; i++ {
-		list = append(list, fmt.Sprintf("$%d", i+1))
-	}
-	return strings.Join(list, ", ")
-}
diff --git a/store/db/postgres/user.go b/store/db/postgres/user.go
index b595fbe..3ab9b72 100644
--- a/store/db/postgres/user.go
+++ b/store/db/postgres/user.go
@@ -3,7 +3,6 @@ package postgres
 import (
 	"context"
 	"errors"
-	"fmt"
 	"strings"
 
 	"github.com/yourselfhosted/slash/store"
@@ -153,7 +152,3 @@ func (d *DB) DeleteUser(ctx context.Context, delete *store.DeleteUser) error {
 	}
 	return nil
 }
-
-func placeholder(n int) string {
-	return "$" + fmt.Sprint(n)
-}