mongoc_apm_server_opening_get_topology_id() — MongoDB C Driver 1.9.2

- MongoDB C Driver 1.9.2 »
- Application Performance Monitoring (APM) »
- mongoc_apm_server_opening_t

# mongoc_apm_server_opening_get_topology_id()

## Synopsis

    void
    mongoc_apm_server_opening_get_topology_id (
       const mongoc_apm_server_opening_t *event, bson_oid_t *topology_id);

Returns this event’s topology id.

## Parameters

- `event`: A mongoc_apm_server_opening_t.
- `topology_id`: A `bson_oid_t` to receive the event’s topology_id.

## Returns

The event’s topology id.

## See Also

Introduction to Application Performance Monitoring

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