{
  "$schema": "../rpc-schema-draft.json",
  "type": "object",
  "additionalProperties": false,
  "rpc": "createinvoice",
  "title": "Low-level invoice creation",
  "description": [
    "The **createinvoice** RPC command signs and saves an invoice into the database."
  ],
  "request": {
    "required": [
      "invstring",
      "label",
      "preimage"
    ],
    "properties": {
      "invstring": {
        "type": "string",
        "description": [
          "The bolt11 form, but the final signature is ignored. Minimal sanity checks are done. (Note: if **experimental-offers** is enabled, *invstring* can actually be an unsigned bolt12 invoice)."
        ]
      },
      "label": {
        "oneOf": [
          {
            "type": "string"
          },
          {
            "type": "integer"
          }
        ],
        "description": [
          "A unique string or number (which is treated as a string, so `01` is different from `1`); it is never revealed to other nodes on the lightning network, but it can be used to query the status of this invoice."
        ]
      },
      "preimage": {
        "type": "hex",
        "description": [
          "The preimage to supply upon successful payment of the invoice."
        ]
      }
    }
  },
  "response": {
    "required": [
      "label",
      "created_index",
      "payment_hash",
      "status",
      "description",
      "expires_at"
    ],
    "properties": {
      "label": {
        "type": "string",
        "description": [
          "The label for the invoice."
        ]
      },
      "bolt11": {
        "type": "string",
        "description": [
          "The bolt11 string (always present unless **bolt12** is)."
        ]
      },
      "bolt12": {
        "type": "string",
        "description": [
          "The bolt12 string instead of **bolt11** (**experimental-offers** only)."
        ]
      },
      "payment_hash": {
        "type": "hash",
        "description": [
          "The hash of the *payment_preimage* which will prove payment."
        ]
      },
      "amount_msat": {
        "type": "msat",
        "description": [
          "The amount of the invoice (if it has one)."
        ]
      },
      "status": {
        "type": "string",
        "enum": [
          "paid",
          "expired",
          "unpaid"
        ],
        "description": [
          "Whether it has been paid, or can no longer be paid."
        ]
      },
      "description": {
        "type": "string",
        "description": [
          "Description extracted from **bolt11** or **bolt12**."
        ]
      },
      "expires_at": {
        "type": "u64",
        "description": [
          "UNIX timestamp of when invoice expires (or expired)."
        ]
      },
      "created_index": {
        "type": "u64",
        "added": "v23.08",
        "description": [
          "1-based index indicating order this invoice was created in."
        ]
      },
      "pay_index": {
        "type": "u64",
        "description": [
          "Incrementing id for when this was paid (**status** *paid* only)."
        ]
      },
      "amount_received_msat": {
        "type": "msat",
        "description": [
          "Amount actually received (**status** *paid* only)."
        ]
      },
      "paid_at": {
        "type": "u64",
        "description": [
          "UNIX timestamp of when invoice was paid (**status** *paid* only)."
        ]
      },
      "paid_outpoint": {
        "type": "object",
        "description": [
          "Outpoint this invoice was paid with (**status** *paid* only)."
        ],
        "added": "v23.11",
        "additionalProperties": false,
        "required": [
          "txid",
          "outnum"
        ],
        "properties": {
          "txid": {
            "added": "v23.11",
            "type": "txid",
            "description": [
              "ID of the transaction that paid the invoice (**status** *paid* only)."
            ]
          },
          "outnum": {
            "added": "v23.11",
            "type": "u32",
            "description": [
              "The 0-based output number of the transaction that paid the invoice (**status** *paid* only)."
            ]
          }
        }
      },
      "payment_preimage": {
        "type": "secret",
        "description": [
          "The proof of payment: SHA256 of this **payment_hash**."
        ]
      },
      "local_offer_id": {
        "type": "hex",
        "description": [
          "The *id* of our offer which created this invoice (**experimental-offers** only)."
        ],
        "maxLength": 64,
        "minLength": 64
      },
      "invreq_payer_note": {
        "type": "string",
        "description": [
          "The optional *invreq_payer_note* from invoice_request which created this invoice (**experimental-offers** only)."
        ]
      }
    },
    "pre_return_value_notes": [
      "(Note: the return format is the same as lightning-listinvoices(7))."
    ]
  },
  "errors": [
    "On failure, an error is returned and no invoice is created. If the lightning process fails before responding, the caller should use lightning-listinvoices(7) to query whether this invoice was created or not.",
    "",
    "The following error codes may occur:",
    "",
    "- -1: Catchall nonspecific error.",
    "- 900: An invoice with the given *label* already exists."
  ],
  "author": [
    "Rusty Russell <<rusty@rustcorp.com.au>> is mainly responsible."
  ],
  "see_also": [
    "lightning-invoice(7)",
    "lightning-listinvoices(7)",
    "lightning-delinvoice(7)",
    "lightning-getroute(7)",
    "lightning-sendpay(7)",
    "lightning-offer(7)"
  ],
  "resources": [
    "Main web site: <https://github.com/ElementsProject/lightning>"
  ]
}