FindChannels
gives a list of channels in your home area on the channel broker server.
gives a list of your unnamed channels.
gives a list of all channels owned by you.
FindChannels[form]
gives a list of channels in your home area whose names match the string pattern form.
FindChannels["/abspath"]
gives a list of channels whose names match the string pattern "/abspath".
FindChannels["mqtts://…"]
gives a list of channels whose names match the specified pattern representing a URL.
Details and Options
- FindChannels only finds channels that are owned by you.
Examples
open all close allBasic Examples (1)
Create a few channels in your home area on the channel broker server:
CreateChannel /@ {"x", "y"}anonymous = CreateChannel[]Retrieve the channels in your home area from the server:
FindChannels[]Retrieve your anonymous channels:
FindChannels[None]FindChannels[All]DeleteChannel[{"x", "y", anonymous}]Scope (7)
Basic Searches (6)
List channels in your home area on the channel broker server:
CreateChannel /@ {"x1", "x2", "x3/4"}FindChannels[]List channels owned by you in the common area on the server:
Table[CreateChannel[], {2}]FindChannels[None]FindChannels[All]Find channels using an abbreviated string pattern:
FindChannels["x*"]Find channels using a StringExpression:
FindChannels["x" ~~ _]Channels in subdirectories of your home area:
FindChannels["x*/*"]Delete all the channels owned by you:
DeleteChannel[All]Advanced Searches (1)
Search your channels by their absolute paths on the channel broker server:
CreateChannel /@ {"abc", "bcd", "cde"}FindChannels["/users/*/*b*"]FindChannels["mqtts://channelbroker-mqtt.wolframcloud.com/users/*/*d*"]DeleteChannel[{"abc", "bcd", "cde"}];Properties & Relations (2)
Channels created with CreateChannel can be retrieved from the server with FindChannels:
CreateChannel["abc"]FindChannels["abc"]DeleteChannel["abc"];If you know the channel name, you can create a ChannelObject reference for the channel immediately, without querying the server with FindChannels:
CreateChannel["abc"];
ChannelObject["abc"]Retrieving the same reference from the server will typically be less efficient:
FindChannels["abc"]DeleteChannel["abc"];
Text
Wolfram Research (2016), FindChannels, Wolfram Language function, https://reference.wolfram.com/language/ref/FindChannels.html (updated 2020).
CMS
Wolfram Language. 2016. "FindChannels." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2020. https://reference.wolfram.com/language/ref/FindChannels.html.
APA
Wolfram Language. (2016). FindChannels. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/FindChannels.html