[#common-GetSetting]
= xref:common.adoc[common]::GetSetting
:relfileprefix: ../
:mrdocs:

Get settings value from combined sources: forced settings, command line arguments, runtime read‐write settings, and the read‐only config file.

== Synopsis

Declared in `<common/settings.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:common/SettingsValue.adoc[SettingsValue]
GetSetting(
    xref:common/Settings.adoc[Settings] const& settings,
    std::string const& section,
    std::string const& name,
    bool ignore_default_section_config,
    bool ignore_nonpersistent,
    bool get_chain_type);
----

== Return Value

The resolved setting value, or a null value if unset.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ignore_default_section_config*
| ‐ ignore values in the default section of the config file (part before any [section]keywords)
| *ignore_nonpersistent*
| ‐ ignore non‐persistent settings values (forced settings values and values specified on the command line). Only return settings in the read‐only config and read‐write settings files.
| *get_chain_type*
| ‐ enable special backwards compatible behavior for GetChainType
| *settings*
| The combined settings sources to read from.
| *section*
| The config section to look up (e.g. the network name).
| *name*
| The setting name to look up.
|===


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