[#boost-urls-url_view_base-encoded_params]
= xref:boost.adoc[boost]::xref:boost/urls.adoc[urls]::xref:boost/urls/url_view_base.adoc[url_view_base]::encoded_params
:relfileprefix: ../../../
:mrdocs:


Return the query as a container of parameters

== Synopsis


Declared in `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/url_view_base.hpp#L2013[boost/url/url_view_base.hpp]>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:boost/urls/params_encoded_view.adoc[params_encoded_view]
encoded_params() const noexcept;
----

== Description


This function returns a bidirectional        view of key/value pairs over the query.        The returned view references the same        underlying character buffer; ownership        is not transferred.        Strings returned when iterating the        range may contain percent escapes.


=== Example

[,cpp]
----
params_encoded_view pv = url_view( "/sql?id=42&name=jane%2Ddoe&page+size=20" ).encoded_params();
----

=== Complexity

Constant.


=== Exception Safety

Throws nothing.


=== BNF

[,cpp]
----
query           = *( pchar / "/" / "?" )
query-param     = key [ "=" value ]
query-params    = [ query-param ] *( "&" query-param )
----

=== Specification

* link:https://datatracker.ietf.org/doc/html/rfc3986#section-3.4[3.4. Query (rfc3986)]
        
* link:https://en.wikipedia.org/wiki/Query_string[Query string (Wikipedia)]

Return the query as a container of parameters

This function returns a bidirectional        view of key/value pairs over the query.        The returned view references the same        underlying character buffer; ownership        is not transferred.        Strings returned when iterating the        range may contain percent escapes.


=== Example

[,cpp]
----
params_encoded_view pv = url_view( "/sql?id=42&name=jane%2Ddoe&page+size=20" ).encoded_params();
----

=== Complexity

Constant.


=== Exception Safety

Throws nothing.


=== BNF

[,cpp]
----
query           = *( pchar / "/" / "?" )
query-param     = key [ "=" value ]
query-params    = [ query-param ] *( "&" query-param )
----

=== Specification

* link:https://datatracker.ietf.org/doc/html/rfc3986#section-3.4[3.4. Query (rfc3986)]
        
* link:https://en.wikipedia.org/wiki/Query_string[Query string (Wikipedia)]



== See Also


xref:boost/urls/url_view_base/encoded_query.adoc[encoded_query],            xref:boost/urls/url_view_base/has_query.adoc[has_query],            xref:boost/urls/url_view_base/params-05.adoc[params],            xref:boost/urls/url_view_base/query.adoc[query].



xref:boost/urls/url_view_base/encoded_query.adoc[encoded_query],            xref:boost/urls/url_view_base/has_query.adoc[has_query],            xref:boost/urls/url_view_base/params-05.adoc[params],            xref:boost/urls/url_view_base/query.adoc[query].






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