Benoit Tellier created JAMES-2919:
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Summary: Allow partial message read in JMAP DRAFT
Key: JAMES-2919
URL: https://issues.apache.org/jira/browse/JAMES-2919
Project: James Server
Issue Type: Wish
Components: JMAP
Reporter: Benoit Tellier
Assignee: Antoine Duprat
Please find attached the two technical decisions being proposed.
# Objectives:
- Reduce the pressure exerced by JMAP on underlying data stores
- Improve network usage between James & JMAP client
## Proposal for JMAP partial reads
Introduce two projections for JMAP messages:
- One with only metadata
- One with metadata + headers
Given the properties requested by the client, the most appropriate message
projection will be returned.
Finally, we should nullify JSON fields not requested by the client before
sending it to the client.
## Proposal for JMAP preview computation
We should pre-compute message preview.
A MailboxListener will compute the preview and store it in a
MessagePreviewStore.
We should have a Cassandra and memory implementation.
When the preview is precomputed then for these messages we can consider the
"preview" property as a metadata.
We should provide a webAdmin task allowing to rebuild the projection.
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