support description_hash across all APIs.

lnbits/core/services.py

@@ -1,15 +1,18 @@
 from typing import Optional, Tuple
 
-from lnbits.bolt11 import decode as bolt11_decode # type: ignore
+from lnbits.bolt11 import decode as bolt11_decode  # type: ignore
 from lnbits.helpers import urlsafe_short_hash
 from lnbits.settings import WALLET
 
 from .crud import get_wallet, create_payment, delete_payment
 
 
-def create_invoice(*, wallet_id: str, amount: int, memo: str) -> Tuple[str, str]:
+def create_invoice(*, wallet_id: str, amount: int, memo: str, description_hash: bytes) -> Tuple[str, str]:
+
     try:
-        ok, checking_id, payment_request, error_message = WALLET.create_invoice(amount=amount, memo=memo)
+        ok, checking_id, payment_request, error_message = WALLET.create_invoice(
+            amount=amount, memo=memo, description_hash=description_hash
+        )
     except Exception as e:
         ok, error_message = False, str(e)
 
@@ -35,11 +38,7 @@ def pay_invoice(*, wallet_id: str, bolt11: str, max_sat: Optional[int] = None) -
 
         fee_reserve = max(1000, int(invoice.amount_msat * 0.01))
         create_payment(
-            wallet_id=wallet_id,
-            checking_id=temp_id,
-            amount=-invoice.amount_msat,
-            fee=-fee_reserve,
-            memo=temp_id,
+            wallet_id=wallet_id, checking_id=temp_id, amount=-invoice.amount_msat, fee=-fee_reserve, memo=temp_id,
         )
 
         wallet = get_wallet(wallet_id)

lnbits/core/views/api.py

@@ -1,5 +1,6 @@
 from flask import g, jsonify, request
 from http import HTTPStatus
+from binascii import unhexlify
 
 from lnbits.core import core_app
 from lnbits.decorators import api_check_wallet_key, api_validate_post_request
@@ -27,13 +28,21 @@ def api_payments():
 @api_validate_post_request(
     schema={
         "amount": {"type": "integer", "min": 1, "required": True},
-        "memo": {"type": "string", "empty": False, "required": True},
+        "memo": {"type": "string", "empty": False, "required": False},
+        "description_hash": {"type": "string", "empty": False, "required": False},
     }
 )
 def api_payments_create_invoice():
+    if "description_hash" in g.data:
+        description_hash = unhexlify(g.data["description_hash"])
+        memo = ""
+    else:
+        description_hash = b""
+        memo = g.data["memo"]
+
     try:
         checking_id, payment_request = create_invoice(
-            wallet_id=g.wallet.id, amount=g.data["amount"], memo=g.data["memo"]
+            wallet_id=g.wallet.id, amount=g.data["amount"], memo=memo, description_hash=description_hash
         )
     except Exception as e:
         return jsonify({"message": str(e)}), HTTPStatus.INTERNAL_SERVER_ERROR