initial commit

mint/crud.py

@@ -0,0 +1,51 @@
+import secrets
+from typing import Optional
+from core.db import Connection, Database
+
+
+async def store_promise(
+    amount: int,
+    B_x: str,
+    B_y: str,
+    C_x: str,
+    C_y: str,
+    db: Database,
+    conn: Optional[Connection] = None,
+):
+
+    await (conn or db).execute(
+        """
+        INSERT INTO promises
+          (amount, B_x, B_y, C_x, C_y)
+        VALUES (?, ?, ?, ?, ?)
+        """,
+        (
+            amount,
+            str(B_x),
+            str(B_y),
+            str(C_x),
+            str(C_y),
+        ),
+    )
+
+
+async def invalidate_proof(
+    proof: dict,
+    db: Database,
+    conn: Optional[Connection] = None,
+):
+
+    # we add the proof and secret to the used list
+    await (conn or db).execute(
+        """
+        INSERT INTO proofs_used
+          (amount, C_x, C_y, secret)
+        VALUES (?, ?, ?, ?)
+        """,
+        (
+            proof["amount"],
+            str(proof["C"]["x"]),
+            str(proof["C"]["y"]),
+            str(proof["secret"]),
+        ),
+    )