feat: init merchant

models.py

@@ -0,0 +1,25 @@
+import json
+from sqlite3 import Row
+from typing import Optional
+
+from pydantic import BaseModel
+
+
+class MerchantConfig(BaseModel):
+    name: Optional[str]
+
+
+class PartialMerchant(BaseModel):
+    private_key: str
+    public_key: str
+    config: MerchantConfig = MerchantConfig()
+
+
+class Merchant(PartialMerchant):
+    id: str
+
+    @classmethod
+    def from_row(cls, row: Row) -> "Merchant":
+        merchant = cls(**dict(row))
+        merchant.config = MerchantConfig(**json.loads(row["meta"]))
+        return merchant