Function invoice_payment

plugins/fetchinvoice.c:1327–1368

FIXME: Using a hook here is not ideal: technically it doesn't mean * it's actually hit the db! But using waitinvoice is also suboptimal * because we don't have libplugin infra to cancel a pending req (and I * want to rewrite our wait* API anyway) */

 * because we don't have libplugin infra to cancel a pending req (and I
 * want to rewrite our wait* API anyway) */
struct command_result *invoice_payment(struct command *cmd,
				       const char *buf,
				       const jsmntok_t *params)
{
	struct sent *i;
	const jsmntok_t *ptok, *preimagetok, *msattok;
	struct preimage preimage;
	struct amount_msat msat;

	ptok = json_get_member(buf, params, "payment");
	preimagetok = json_get_member(buf, ptok, "preimage");
	msattok = json_get_member(buf, ptok, "msat");
	if (!preimagetok || !msattok)
		plugin_err(cmd->plugin,
			   "Invalid invoice_payment %.*s",
			   json_tok_full_len(params),
			   json_tok_full(buf, params));

	hex_decode(buf + preimagetok->start,
		   preimagetok->end - preimagetok->start,
		   &preimage, sizeof(preimage));
	json_to_msat(buf, msattok, &msat);

	list_for_each(&sent_list, i, list) {
		struct out_req *req;

		if (!i->inv)
			continue;
		if (!preimage_eq(&preimage, &i->inv_preimage))
			continue;

		/* It was paid!  Success.  Return as per waitinvoice. */
		req = jsonrpc_request_start(i->cmd, "waitinvoice",
					    &forward_result,
					    &forward_error,
					    i);
		json_add_escaped_string(req->js, "label", i->inv_label);
		discard_result(send_outreq(req));
		break;
	}
	return command_hook_success(cmd);
}

static struct command_result *createinvoice_done(struct command *cmd,
						 const char *method,