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, an object is returned, containing:

  • totlen (u16): the answer length of the reply message (including header: 0 means no reply expected)

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.

SEE ALSO

lightning-connect(7)

RESOURCES

Main web site: https://github.com/ElementsProject/lightning comment: # ( SHA256STAMP:aa91cd20bea0156c4b2b2ca377945c383ad3ae06d31b972fbce9fc1999cfbc70)