Collect Data from HTTP Requests

Start a listener that speaks the value of the parameter param when a message containing param arrives.

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listener = ChannelListen["speak", Speak["Arrived " <> ToString[Lookup[#Message, "param"]]] &, Permissions -> "Public"]

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Send a message to the listener from a terminal on the same or any other machine using cURL, and hear your listener speak.

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"curl \"" <> URLBuild[listener["URL"], {"operation" -> "send", "param" -> 123}] <> "\""

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Send a message from a web browser.

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URLBuild[listener["URL"], {"operation" -> "send", "param" -> 456}]

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Send a message from a Wolfram System.

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ChannelSend[$WolframID <> ":speak", <|"param" -> 789|>]

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All data received by the listener.

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listener["Dataset"]

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