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[WEB-4194] Conflation ControlAPI #2416

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See WEB-4194 for more details

Add ControlAPI fields to namespaces for conflation, and clean up batching fields

This pull request includes changes to the static/open-specs/control-v1.yaml file to update the message batching and conflation configurations. The most important changes involve the removal of the batchingPolicy field and the addition of new fields related to message conflation.

Changes to message batching and conflation configurations:

  • Removed the batchingPolicy field from the configuration. [1] [2] [3]
  • Updated the batchingInterval description to clarify its role in determining the frequency of message batching.
  • Added the conflationEnabled field to enable or disable message conflation.
  • Added the conflationInterval field to specify the interval at which messages are conflated.
  • Added the conflationKey field to determine which messages should be conflated based on a key.

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@denissellu denissellu requested a review from m-hulbert January 30, 2025 16:32
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Will suggest some text updates too, but the conflation properties are missing from create.

@m-hulbert m-hulbert temporarily deployed to ably-docs-web-4194-conf-lgyali March 13, 2025 10:41 Inactive
@denissellu denissellu force-pushed the WEB-4194-conflation-control-api branch from 2fbb4d7 to 9f02730 Compare March 26, 2025 12:08
@denissellu denissellu requested a review from m-hulbert March 26, 2025 12:08
@m-hulbert m-hulbert force-pushed the WEB-4194-conflation-control-api branch from 9f02730 to 7ca7e40 Compare April 8, 2025 14:19
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Suggested text updates for the properties 🙂

batchingInterval:
type: integer
default: 20
description: If `true`, the batching interval, configurable from 20ms to 1s, temporarily holds and aggregates incoming messages. These messages are then combined and delivered as a single batch once the interval elapses or a size limit is reached (before the interval elapses).
example: 20
conflationEnabled:
default: false
description: If `true`, enables conflation for channels within this namespace. Conflation reduces the number of messages sent to subscribers by combining multiple messages into a single message.
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Suggested change
description: If `true`, enables conflation for channels within this namespace. Conflation reduces the number of messages sent to subscribers by combining multiple messages into a single message.
description: If `true`, enables <a href="https://ably.com/docs/messages#conflation">conflation</a> for channels within this namespace. Conflation will aggregate published messages for a set period of time and evaluate them against a conflation key. Only the most recent message that satisfies the key will be sent to subscribers at the end of the conflation interval.

example: false
conflationInterval:
type: integer
description: The interval in milliseconds at which messages are conflated. This determines how frequently messages are combined into a single message.
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Suggested change
description: The interval in milliseconds at which messages are conflated. This determines how frequently messages are combined into a single message.
description: The interval in milliseconds over which messages are held and evaluated for conflation.

example: 1000
conflationKey:
type: string
description: The key used to determine which messages should be conflated. Messages with the same conflation key will be combined into a single message.
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Suggested change
description: The key used to determine which messages should be conflated. Messages with the same conflation key will be combined into a single message.
description: The <a href="https://ably.com/docs/messages#routing">key</a> used to determine which messages should be conflated.

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