[#wallet-SQLiteBatch-WriteKey]
= xref:wallet.adoc[wallet]::xref:wallet/SQLiteBatch.adoc[SQLiteBatch]::WriteKey
:relfileprefix: ../../
:mrdocs:

Write a value under a key.

== Synopsis

Declared in `<wallet/sqlite.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
virtual
bool
WriteKey(
    xref:DataStream.adoc[DataStream]&& key,
    xref:DataStream.adoc[DataStream]&& value,
    bool overwrite = true) override;
----

== Return Value

True if the write succeeded, false otherwise.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *key*
| The key to write.
| *value*
| The value to store.
| *overwrite*
| Whether to overwrite an existing value for the key.
|===


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