dm_mqtt_url Function

public function dm_mqtt_url(host, topic, port) result(url)

Returns allocatable string of URL to MQTT server. Uses the URL API of libcurl to create the URL. If port is 0, the default port will be used. The topic must start with character /.

On error, an empty string is returned.

Arguments

Type	Intent	Optional	Attributes		Name
character(len=*),	intent(in)			::	host	IP or FQDN of MQTT server.
character(len=*),	intent(in)			::	topic	MQTT topic.
integer,	intent(in),	optional		::	port	MQTT server port (1883 by default).

Return Value character(len=:), allocatable

Created URL.