anonymousland-synapse/docs/server-server/protocol-format.rst

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Transaction
===========
Required keys:
============ =================== ===============================================
Key Type Description
============ =================== ===============================================
origin String DNS name of homeserver making this transaction.
ts Integer Timestamp in milliseconds on originating
homeserver when this transaction started.
previous_ids List of Strings List of transactions that were sent immediately
prior to this transaction.
pdus List of Objects List of updates contained in this transaction.
============ =================== ===============================================
PDU
===
Required keys:
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Key Type Description
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context String Event context identifier
origin String DNS name of homeserver that created this PDU.
pdu_id String Unique identifier for PDU within the context for
the originating homeserver.
ts Integer Timestamp in milliseconds on originating
homeserver when this PDU was created.
pdu_type String PDU event type.
prev_pdus List of Pairs The originating homeserver and PDU ids of the
of Strings most recent PDUs the homeserver was aware of for
this context when it made this PDU.
depth Integer The maximum depth of the previous PDUs plus one.
============ ================== ================================================
Keys for state updates:
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Key Type Description
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is_state Boolean True if this PDU is updating state.
state_key String Optional key identifying the updated state within
the context.
power_level Integer The asserted power level of the user performing
the update.
min_update Integer The required power level needed to replace this
update.
prev_state_id String The homeserver of the update this replaces
prev_state_origin String The PDU id of the update this replaces.
user String The user updating the state.
================== ============ ================================================