rgb-cln/doc/lightning-ping.7.md

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lightning-ping -- Command to check if a node is up.
============================================================
SYNOPSIS
--------
2022-01-26 17:18:49 +00:00
**ping** *id* [*len*] [*pongbytes*]
DESCRIPTION
-----------
The **ping** command checks if the node with *id* is ready to talk.
It currently only works for peers we have a channel with.
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).
A value of 65532 to 65535 means "don't reply".
EXAMPLE JSON REQUEST
------------
```json
{
"id": 82,
"method": "ping",
"params": {
"len": 128,
"pongbytes": 128
}
}
```
RETURN VALUE
------------
[comment]: # (GENERATE-FROM-SCHEMA-START)
On success, an object is returned, containing:
- **totlen** (u16): the answer length of the reply message (including header: 0 means no reply expected)
[comment]: # (GENERATE-FROM-SCHEMA-END)
On failure, one of the following error codes may be returned:
- -32602: Error in given parameters or we're already waiting for a ping response from peer.
EXAMPLE JSON RESPONSE
-----
```json
{
"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:7fe1120c251ffe6d51057a94823376a512dee3ec4f251be82a7dc4b2f044a165)