[#CValidationInterface-TransactionAddedToMempool]
= xref:CValidationInterface.adoc[CValidationInterface]::TransactionAddedToMempool
:relfileprefix: ../
:mrdocs:

Notifies listeners of a transaction having been added to mempool.

== Synopsis

Declared in `<validationinterface.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
virtual
void
TransactionAddedToMempool(
    xref:NewMempoolTransactionInfo.adoc[NewMempoolTransactionInfo] const& tx,
    uint64_t mempool_sequence);
----

== Description

Called on a background thread.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *tx*
| Information about the transaction added to the mempool.
| *mempool_sequence*
| Mempool sequence number at the time of the addition.
|===


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