Module change_event 

MongoDB change stream event types.

Represents the structure of change events emitted by MongoDB change streams. Maps MongoDB’s change event document structure to typed Rust structs for safe downstream processing.

Operation Types

MongoDB change streams emit events for the following operations:

• insert — new document created; full_document always present
• update — document modified; update_description contains delta
• replace — full document replacement
• delete — document removed; only document_key present
• drop — collection dropped (lifecycle event)
• rename — collection renamed (lifecycle event)
• invalidate — stream invalidated; must restart with startAfter

Structs

MongoDbChangeEvent

A change event from a MongoDB change stream.

Namespace

The namespace (database + collection) for a change event.

TruncatedArray

Describes a truncated array in an update operation (MongoDB 6.0+).

UpdateDescription

Describes the fields changed during an update operation.

Enums

OperationType

The type of operation described by a change event.