NUT-06: Mint contact info (#585)

* Implement NUT-06 change: https://github.com/cashubtc/nuts/pull/117

* wallet deserialize

* ignore contact info for deprecated v0 response

cashu/core/models.py

@@ -25,13 +25,18 @@ class MintMeltMethodSetting(BaseModel):
     max_amount: Optional[int] = None
 
 
+class MintInfoContact(BaseModel):
+    method: str
+    info: str
+
+
 class GetInfoResponse(BaseModel):
     name: Optional[str] = None
     pubkey: Optional[str] = None
     version: Optional[str] = None
     description: Optional[str] = None
     description_long: Optional[str] = None
-    contact: Optional[List[List[str]]] = None
+    contact: Optional[List[MintInfoContact]] = None
     motd: Optional[str] = None
     nuts: Optional[Dict[int, Any]] = None
 

cashu/mint/router.py

@@ -10,6 +10,7 @@ from ..core.models import (
     KeysetsResponseKeyset,
     KeysResponse,
     KeysResponseKeyset,
+    MintInfoContact,
     PostCheckStateRequest,
     PostCheckStateResponse,
     PostMeltQuoteRequest,
@@ -41,13 +42,16 @@ router: APIRouter = APIRouter()
 async def info() -> GetInfoResponse:
     logger.trace("> GET /v1/info")
     mint_features = ledger.mint_features()
+    contact_info = [
+        MintInfoContact(method=m, info=i) for m, i in settings.mint_info_contact
+    ]
     return GetInfoResponse(
         name=settings.mint_info_name,
         pubkey=ledger.pubkey.serialize().hex() if ledger.pubkey else None,
         version=f"Nutshell/{settings.version}",
         description=settings.mint_info_description,
         description_long=settings.mint_info_description_long,
-        contact=settings.mint_info_contact,
+        contact=contact_info,
         nuts=mint_features,
         motd=settings.mint_info_motd,
     )

cashu/wallet/mint_info.py

@@ -2,10 +2,9 @@ from typing import Any, Dict, List, Optional
 
 from pydantic import BaseModel
 
-from cashu.core.nuts import MPP_NUT, WEBSOCKETS_NUT
-
 from ..core.base import Method, Unit
-from ..core.models import Nut15MppSupport
+from ..core.models import MintInfoContact, Nut15MppSupport
+from ..core.nuts import MPP_NUT, WEBSOCKETS_NUT
 
 
 class MintInfo(BaseModel):
@@ -14,7 +13,7 @@ class MintInfo(BaseModel):
     version: Optional[str]
     description: Optional[str]
     description_long: Optional[str]
-    contact: Optional[List[List[str]]]
+    contact: Optional[List[MintInfoContact]]
     motd: Optional[str]
     nuts: Optional[Dict[int, Any]]
 

cashu/wallet/wallet_deprecated.py

@@ -136,7 +136,7 @@ class LedgerAPIDeprecated(SupportsHttpxClient, SupportsMintURL):
             GetInfoResponse_deprecated.parse_obj(data)
         )
         mint_info = GetInfoResponse(
-            **mint_info_deprecated.dict(exclude={"parameter", "nuts"})
+            **mint_info_deprecated.dict(exclude={"parameter", "nuts", "contact"})
         )
         return mint_info