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lightning-ping -- Command to check if a node is up.

SYNOPSIS

ping id [len] [pongbytes]

DESCRIPTION

The ping command checks if the node with id is ready to talk. It accepts the following parameters:

id: A string that represents the node id;
len: A integer that represents the length of the ping (default 128);
pongbytes: An integer that represents the length of the reply (default 128).

EXAMPLE JSON REQUEST

{
  "id": 82,
  "method": "ping",
  "params": {
    "len": 128,
    "pongbytes": 128
  }
}

RETURN VALUE

On success, the command will return an object with a single string.

totlen: A string that represents the answer length of the reply message (including header)

On failure, one of the following error codes may be returned:

-32602: Error in given parameters or unknown peer.

EXAMPLE JSON RESPONSE

{
   "totlen": 132
}

AUTHOR

Vincenzo Palazzo <vincenzo.palazzo@protonmail.com> wrote the initial version of this man page, but many others did the hard work of actually implementing this rpc command.

RESOURCES

Main web site: https://github.com/ElementsProject/lightning

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