Captures
Captures let you describe Change Data Capture (CDC) pipelines that turn external data changes into Chronicle events.
Overview
Section titled “Overview”A capture definition describes:
- Source: where data comes from (
api,webhook,message) - Identity key: the property used to detect changes per entity
- Mapping: optional transformations before append logic
- Append rules: which event to append and when to append it
- Scopes: root, nested objects, and child collections
Chronicle supports three authoring approaches. Only the first is language-neutral — the other two are .NET client features, documented alongside the rest of the .NET client:
- Capture Declaration Language (CDL) for text-based definitions
- Declarative API (.NET) for fluent definitions in code
- Model-bound API (.NET) for attribute-based definitions
Topics
Section titled “Topics”| Topic | Description |
|---|---|
| Capture Declaration Language | CDL syntax, semantics, and formal language specification |
| Declarative Captures | .NET client fluent API (ICapturer + ICaptureBuilder) |
| Model-Bound Captures | .NET client attribute-based capture declarations |