add newConnectionId with unit test

internal/session/ids.go

@@ -12,6 +12,9 @@ const (
 
 	// StatePrefix for state PK ids
 	StatePrefix = "ss"
+
+	// ConnectionPrefix for connection PK ids
+	ConnectionPrefix = "sc"
 )
 
 func newId() (string, error) {
@@ -29,3 +32,11 @@ func newStateId() (string, error) {
 	}
 	return id, nil
 }
+
+func newConnectionId() (string, error) {
+	id, err := db.NewPublicId(ConnectionPrefix)
+	if err != nil {
+		return "", fmt.Errorf("new session connection id: %w", err)
+	}
+	return id, nil
+}

internal/session/ids_test.go

@@ -20,4 +20,9 @@ func Test_Ids(t *testing.T) {
 		require.NoError(t, err)
 		assert.True(t, strings.HasPrefix(id, StatePrefix+"_"))
 	})
+	t.Run("sc", func(t *testing.T) {
+		id, err := newConnectionId()
+		require.NoError(t, err)
+		assert.True(t, strings.HasPrefix(id, ConnectionPrefix+"_"))
+	})
 }