Wallets: add custom invoice expiry (#1396)

* expiry for fakewallet

* expiry for lnd

* lnbits backend

* fix: eclair descriptionHash fixed and expiry added

* cln and sparko

* test expiry

* Eclair from AdminUI and bugfix for nonexistent payments

* add to settings and .env and remove lntxbot

* remove duplicate and format

* add invoice expiry

* add min max and step

* UI works now

* test should fail, sanity check, will revert

* revert, ready for merge

Co-authored-by: Tiago Vasconcelos <talvasconcelos@gmail.com>

lnbits/wallets/lndrest.py

@@ -77,6 +77,8 @@ class LndRestWallet(Wallet):
         **kwargs,
     ) -> InvoiceResponse:
         data: Dict = {"value": amount, "private": True}
+        if kwargs.get("expiry"):
+            data["expiry"] = kwargs["expiry"]
         if description_hash:
             data["description_hash"] = base64.b64encode(description_hash).decode(
                 "ascii"