# IMQCallHooks.beforeCall property · @imqueue/opentelemetry

Source: https://imqueue.org/api/opentelemetry/latest/opentelemetry.imqcallhooks.beforecall/
Published: 2026-08-01
Author: @imqueue maintainers (https://github.com/imqueue)
Package: @imqueue/opentelemetry 4.0.0 — generated reference, not hand-written

Runs before a client sends a request. Starts the CLIENT span and injects its trace context into the request metadata.

**Signature:**

```typescript
beforeCall?: Function;
```