{
  "$schema": "../rpc-schema-draft.json",
  "type": "object",
  "additionalProperties": false,
  "rpc": "help",
  "title": "Command to return all information about RPC commands.",
  "description": [
    "The **help** is a RPC command which is possible consult all information about the RPC commands, or a specific command if *command* is given.",
    "",
    "Note that the lightning-cli(1) tool will prefer to list a man page when a specific *command* is specified, and will only return the JSON if the man page is not found."
  ],
  "request": {
    "required": [],
    "properties": {
      "command": {
        "type": "string",
        "description": [
          "Command to get information about."
        ]
      }
    }
  },
  "response": {
    "required": [
      "help"
    ],
    "properties": {
      "help": {
        "type": "array",
        "items": {
          "type": "object",
          "additionalProperties": true,
          "required": [
            "command",
            "category",
            "description",
            "verbose"
          ],
          "properties": {
            "command": {
              "type": "string",
              "description": [
                "The command."
              ]
            },
            "category": {
              "type": "string",
              "description": [
                "The category for this command (useful for grouping)."
              ]
            },
            "description": {
              "type": "string",
              "description": [
                "A one-line description of the purpose of this command."
              ]
            },
            "verbose": {
              "type": "string",
              "description": [
                "A full description of this command (including whether it's deprecated)."
              ]
            }
          }
        }
      },
      "format-hint": {
        "type": "string",
        "enum": [
          "simple"
        ],
        "description": [
          "Prints the help in human-readable flat form."
        ]
      }
    }
  },
  "json_example": [
    {
      "request": {
        "id": "example:help#1",
        "method": "help",
        "params": {
          "command": "pay"
        }
      },
      "response": {
        "help": [
          {
            "command": "pay bolt11 [amount_msat] [label] [riskfactor] [maxfeepercent] [retry_for] [maxdelay] [exemptfee] [localinvreqid] [exclude] [maxfee] [description] [dev_use_shadow]",
            "category": "plugin",
            "description": "Send payment specified by {bolt11}",
            "verbose": "Attempt to pay the {bolt11} invoice."
          }
        ],
        "format-hint": "simple"
      }
    },
    {
      "request": {
        "id": "example:help#2",
        "method": "help",
        "params": {
          "command": "dev"
        }
      },
      "response": {
        "help": [
          {
            "command": "dev subcommand=crash|rhash|slowcmd",
            "category": "developer",
            "description": "Developer command test multiplexer",
            "verbose": "dev rhash {secret}\n\tShow SHA256 of {secret}\ndev crash\n\tCrash lightningd by calling fatal()\ndev slowcmd {msec}\n\tTorture test for slow commands, optional {msec}\n"
          }
        ],
        "format-hint": "simple"
      }
    }
  ],
  "errors": [
    "On failure, one of the following error codes may be returned:",
    "",
    "- -32602: Error in given parameters."
  ],
  "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>"
  ]
}