[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [WebSocket](https://evolu.dev/docs/api-reference/common/WebSocket) › WebSocketReadyState

```ts
type WebSocketReadyState = "connecting" | "open" | "closing" | "closed";
```

Defined in: [packages/common/src/WebSocket.ts:90](https://github.com/evoluhq/evolu/blob/e7144e2bbe9069362b62dec1b64a8aa922b8f1b0/packages/common/src/WebSocket.ts#L90)

WebSocket connection states.