---
title: FlowDirection enum | Wartiva GraphQL API
description: Flow direction for connection tracking in nftables ct expressions. Wartiva GraphQL API reference with arguments, fields, and examples.
url: https://wartiva.com/api-docs/types/flow-direction.html
updated: 2026-10-07
---

Endpoint configuration · GraphQL enum

# `FlowDirection` enum

Flow direction for connection tracking in nftables ct expressions. Specifies whether to match the original (initiator → responder) or reply (responder → initiator) direction of a connection. Reference: [nftables — Connection Tracking](https://wiki.nftables.org/wiki-nftables/index.php/Connection_Tracking_Modules)

## Values

| Enum Value | Description |
|---|---|
| `ORIGINAL` | Original flow direction (from initiator to responder). |
| `REPLY` | Reply flow direction (from responder to initiator). |

## Used by

- [`CtExpression`](https://wartiva.com/api-docs/types/ct-expression.html) type: Inspect or modify connection tracking (conntrack) state, such as connection state, marks, labels, addresses, or counters.

## Example

### Example

```json
"ORIGINAL"

```

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