The content of the last received message of a listener:

Metainformation:

Content with metainformation:

Several properties:

Delete the channel, which removes the listener:

The number of received messages and their content:

All messages and timestamps:

The last two messages:

Delete the channel, which removes the listener:

Time series of a number of messages sent in the form of an association, with a delay between messages:

Plot the data:

A Dataset of received messages:

Clean up:

TimeSeries of raw data sent without a named key:

Clean up:

Messages consisting of certain atomic expressions, such as strings and numbers, are given verbatim:

Lists, rules and associations containing such atomic expressions are also given verbatim:

Clean up:

Symbolic messages with immediately executable Wolfram Language code are kept unevaluated:

Formatting of unevaluated messages is also disabled:

Evaluate the message after examining its content:

Clean up:

Delayed rules in a message are given verbatim, as long as the left-hand side is a string, a number or one of a small set of atomic expressions like the symbols True, False or Null:

However, the formatting of right-hand sides of delayed rules is still disabled:

Evaluating the right-hand sides restores the normal formatting:

Clean up:

The URL representing the channel on which the listener is listening:

The ChannelObject representing the channel on which the listener is listening:

The handler function of the listener:

Clean up: