kennknowles opened a new issue, #19162:
URL: https://github.com/apache/beam/issues/19162
When we use PubSub to push or pull messages, we currently have no choice of
serialization implementation because PubsubIO use internaly the
*_PubsubJsonClient.FACTORY_* of type _*PubsubJsonClientFactory*_ to serialize
or deserialize messages.
It should be nice to be able to set a different factory (e.g.
*_PubsubGrpcClientFactory_*) to decrease the size of messages (and then
decrease the price of using Pubsub).
I guess It could be possible to write something like:
`PubsubIO.Write<PubsubMessage> write =`
` PubsubIO.writeMessages()`
` .to("projects/project/topics/topic")`
` *.withFactory(PubsubGrpcClient.FACTORY)*`
` .withTimestampAttribute("timestamp")``;`
or
`PubsubIO.Read<PubsubMessage> read = `
` PubsubIO.readMessages()`
` .fromSubscription("projects/project/subscriptions/name")`
` *.withFactory(PubsubGrpcClient.FACTORY)*`
` .withTimestampAttribute("timestamp");`
Imported from Jira
[BEAM-5676](https://issues.apache.org/jira/browse/BEAM-5676). Original Jira may
contain additional context.
Reported by: lhauspie.
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