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Adding data stores to agents

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Added in eventcatalog@3.41.0

Data stores are containers that hold data in your architecture — databases, caches, object stores, search indexes, and so on. Agents can read from and write to these containers, and documenting those relationships keeps the full data-access picture visible in the visualiser.

Specify read/write relationships​

Add readsFrom or writesTo arrays to your agent's frontmatter. Provide the id of the data store and optionally its version.

/agents/FraudReviewAgent/index.mdx (example)
---
id: FraudReviewAgent
version: 0.0.1
readsFrom:
  - id: fraud-analytics-db
  - id: ml-model-store
    version: 2.0.0
---
/agents/InventoryRebalancingAgent/index.mdx (example)
---
id: InventoryRebalancingAgent
version: 0.0.1
readsFrom:
  - id: inventory-readmodel
  - id: inventory-db
writesTo:
  - id: rebalancing-audit-log
---

If no version is provided, EventCatalog uses the latest version of the data store.

Visualize data stores​

When data stores are connected to an agent, EventCatalog visualizes the read/write relationships — either via the <NodeGraph /> component on the agent page or through the full-screen visualiser.

Agent visualiser showing data store nodes connected with reads and writes