Update Metadata

PUT /public/v1/datacatalog/connections/{connection_id}/streams/{stream_name}/metadata

Updates metadata for a specific data stream in the catalog.

You can perform either a full update or a partial update by sending only the fields you want to change.

---

Request

Path Parameters

Parameter	Type	Description	Required
connection_id	string	ID of the connection (e.g., Kafka cluster)	Yes
stream_name	string	Name of the stream (e.g., Kafka topic)	Yes

Body Parameters

Field	Type	Description	Required
tags	string[]	Labels for categorizing the stream	Optional
ownerId	string	User ID of the stream owner	Optional
domainId	string (UUID)	Domain identifier	Optional
documentation	string	Rich text documentation (HTML format)	Optional
updatedBy	string	User ID of the person making the update	Optional
updatedAt	long	Unix timestamp in milliseconds	Optional

---

Example — Full Update

curl --location --request PUT 'https://your-instance.com/public/v1/datacatalog/connections/42/streams/spacecraft.telemetry.raw/metadata' \
--header 'Content-Type: application/json' \
--header 'Authorization: Bearer <your-api-key>' \
--data-raw '{
  "metadata": {
    "tags": ["spacecraft", "telemetry", "raw-data"],
    "ownerId": "[e-mail]",
    "domainId": "9f83cc67-d3da-4432-b0b7-0d08e7b41d86",
    "documentation": "<h1>Spacecraft Telemetry Stream</h1><p>This stream contains raw telemetry data from our spacecraft fleet, including:</p><ul><li>Position data</li><li>System health metrics</li><li>Environmental readings</li></ul>",
    "updatedBy": "[e-mail]",
    "updatedAt": 1707347405000
  }
}'

---

Example — Partial Update

curl --location --request PUT 'https://your-instance.com/public/v1/datacatalog/connections/42/streams/spacecraft.telemetry.raw/metadata' \
--header 'Content-Type: application/json' \
--header 'Authorization: Bearer <your-api-key>' \
--data '{
  "metadata": {
    "tags": ["spacecraft", "telemetry", "processed"],
    "documentation": "<h1>Spacecraft Telemetry Stream</h1><p>Updated: This stream now contains processed telemetry data.</p>"
  }
}'

Partial updates only modify the specified fields without affecting other metadata.

---

Response

HTTP Status Code: 200 OK Response Body: The change (object)

---

Best Practices

• Use partial updates when possible to avoid overwriting existing metadata unintentionally.

• Include meaningful documentation in HTML format to describe the data stream clearly.

• Keep tags consistent across related streams for better searchability and organization.

---

Possible Errors

Status Code	Description	Solution
400	Invalid request	Check your request payload format
401	Unauthorized	Verify your API key
404	Stream not found	Confirm connection ID and stream name