set_query

Set the query

Synopsis

url_base& set_query( string_view s);

Declared in file <src/url_base.cpp> at line 1345

Description

This sets the query to the string, which can be empty. An empty query is distinct from having no query. Reserved characters in the string are percent-escaped in the result.

Example

assert( url( "http://example.com" ).set_query( "id=42" ).query() == "id=42" );

Postconditions

this->has_query() == true && this->query() == s

Exception Safety

Strong guarantee. Calls to allocate may throw.

BNF

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

Specification

  • 3.4. Query (rfc3986)
  • Query string (Wikipedia)