Function fail_exists

lightningd/invoice.c:1623–1641

If we fail because it exists, we also return the clashing invoice */

/* If we fail because it exists, we also return the clashing invoice */
static struct command_result *fail_exists(struct command *cmd,
					  const struct json_escape *label)
{
	struct json_stream *data;
	struct invoice invoice;
	struct wallet *wallet = cmd->ld->wallet;

	data = json_stream_fail(cmd, INVOICE_LABEL_ALREADY_EXISTS,
				"Duplicate label");
	if (!wallet_invoice_find_by_label(wallet, &invoice, label))
		fatal("Duplicate invoice %s not found any more?",
		      label->s);

	json_add_invoice_fields(data,
				wallet_invoice_details(cmd, wallet, invoice));
	json_object_end(data);

	return command_failed(cmd, data);
}

static struct command_result *json_createinvoice(struct command *cmd,
						 const char *buffer,