| # PIP-306: Support subscribing multi topics for WebSocket |
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| # Background knowledge |
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| WebSocket currently only supports the consumption of a single topic, which cannot satisfy users' consumption scenarios of multiple topics. |
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| # Motivation |
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| Supports consumption of multiple topics or pattern topics. |
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| # Detailed Design |
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| Currently, the topic name is specified through path for consumption, like: |
| ``` |
| /ws/v2/consumer/persistent/my-property/my-ns/my-topic/my-subscription |
| ``` |
| If we want to support subscribing multi-topics, adding parameters will be confusing. Therefore, add a new v3 request path as follows: |
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| For consumption of pattern-topics: |
| ``` |
| /ws/v3/consumer/subscription?topicsPattern="a.*" |
| ``` |
| For consumption of multi-topics: |
| ``` |
| /ws/v3/consumer/subscription?topics="a,b,c" |
| ``` |
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| # Links |
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| * Mailing List discussion thread: https://lists.apache.org/thread/co8396ywny161x91dffzvxlt993mo1ht |
| * Mailing List voting thread: https://lists.apache.org/thread/lk28o483y351s7m44p018320gq3g4507 |
