# getCommandSubscriptionTopic API

Builds the NATS subject used by command handlers for one service address.

---
Canonical: /handbook/api/variables/_purista_natsbridge.getCommandSubscriptionTopic/
Source: natsbridge/src/topic/getCommandSubscriptionTopic.impl.ts
Format: Markdown for agents
---

Builds the NATS subject used by command handlers for one service address.

Package: `@purista/natsbridge`

## Signature

```typescript
const getCommandSubscriptionTopic: GetCommandTopicFn
```