add bankclient

.env.example

@@ -1,6 +1,9 @@
 # Enable Banking Credentials
-EB_CLIENT_ID=your_client_id
-EB_CLIENT_SECRET=your_client_secret
+EB_APP_ID=your_app_id # This should be the Application ID provided by Enable Banking when you register your application.
+EB_PEM_FILE=your_app_secret # This should be the path to the PEM file containing your private key for authentication with Enable Banking.
+EB_BANK_NAME=your_bank_name # e.g. "Deutsche Bank", "N26", "Revolut", etc.
+EB_COUNTRY_CODE=your_country_code # e.g. DE for Germany, US for United States, etc.
+EB_API_BASE_URL=https://api.enablebanking.com # Base URL for Enable Banking API
 
 # Actual Budget Configuration
 ACTUAL_SERVER_URL=https://your-actual-server.com

README.md

@@ -32,7 +32,7 @@ Automate your financial tracking without sacrificing privacy. Actualize pulls yo
    ```bash
    python -m venv venv
    source venv/bin/activate  # On Windows: venv\Scripts\activate
-   pip install actualpy enablebanking_sdk python-dotenv
+   pip install actualpy enablebanking_sdk python-dotenv fastapi "uvicorn[standard]"
    ```
 
 3. **Configure environment variables:**
@@ -60,7 +60,13 @@ Automate your financial tracking without sacrificing privacy. Actualize pulls yo
 2. **Sync:**
    Run the sync script to pull transactions and push them to Actual.
    ```bash
-   python sync.py
+python sync.py
+    ```
+
+3. **API Mode:**
+   Start the FastAPI server.
+   ```bash
+   uvicorn src.main:app --reload
    ```
 
 ## 📦 Tech Stack

private.pem

@@ -0,0 +1,52 @@
+-----BEGIN PRIVATE KEY-----
+MIIJRAIBADANBgkqhkiG9w0BAQEFAASCCS4wggkqAgEAAoICAQC7SgaZaMWXYxkR
+R0RsippFJBgK++5Vv8UQFlB1egKEzIvhvaFwoObPkuiFW/EeoGEjRfvTNivzXEBt
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+qhlhSKLRlNg1toIGASiEoH7kl9+WAkNs7PEcTDS6sWFvXEMWE+PURC9ewiEyan34
+Sxq3PGX8lg3c1Wp5M4MKu6jtwKpagK01/NZQnhJPSDu+uDEjRmBJ5bw2jqg1xjje
+Pyk4oo/vn26SrGVjYH7Fr2G6FqP4OVukvIIEUgKsFJNHiKxhBhjoGDdWuO2Bnfk1
+cOFj07yDihH2zG7PYdFMkxtHnCzJswIDAQABAoICABwA0oHHl5uuFoZt2H4+Lxjd
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+pA7qiW8eteB9xE14neslUtZR+D+NbKtrQSSngnKSNqBMg6KGcj0dCZC6xs6zi2Lc
+4bWvctbSMcMpIgHaeYWu8yyRfFDwhQwQ+hoj+Wlwt4F8x+DIjP8tAXo6NsxUnXSH
+wCwhptNU/gZaLoBLo9YOPABbIpLkVPv46e/5vophPpahCWcjwwLVerwNywH2mQoT
+xSXh9keGGW+WO4Jxy8yubczHeUSV8tttqbbIpPVAm3Md7Yv2OtoRvBaf0+ZtOAwV
+9v+uAXoT8wmi/2dXm2JEfxHfQDlwttcAUCNKdastaGaevNyqiTf0KgsihF6EfS0q
+KP9Sl5A2tjiYjrCtdW1DMj34qqzmraipIPCoN/dx+UJdAyPiK0C7QVOPtAre+ean
+F6Y1gILcsbtB92o5PURBNFFJnQ/m5bJlPP5DN4UzqI2bK6bkFctpqgu28ZSV6DQh
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+zYHYU72clsWkQJh6dtOQziCB/dszzqPE8uiyjUhgzjbAT3W8jd8ZkGfIikiRgNhj
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+fqA7ocBEdCm1yNJgdYCgIH2vaJGsY2PpJJNuf25r2khO8HGnOWv7Rx0jMpgbniDi
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+XKgYBUEhN61LAoIBAQDIvSmHrxZo/wRENPWUURmkc+XfekOxyZXbhuP1SLDwLj2x
+uMzIxOQpTQ3vdt4ez7cl/i7i4ul5S5dzUC3PJPwpLgP0FF7USoILK7zlCy6k7t/q
+YggZjdznHm0gzgeWLi/1w1zSwgrvD3LiaMDlWc4r+tC/97+AF2n3bujXlFZzSgnZ
+jKiYFU7jgnjQB9D/4NowMOAEi8ymKOtHj4EWljlSQziYKeOlZo8C2uZjke4zq2xQ
+BNwkrnfPLBXbgvaJzBWpzmwa5MJYUO6GEwsENpYr7mjRnoyEa8cLsbImkuPP5uc7
+NvGlaFqhM58LzoDF16824l+qOXZYLfYtL0tUJEAhAoIBAQDLqdX8u1C4K0qPxcRv
+8gXPvRkNsKUzIVzpg7rwJPbEu++aAtCB1dn9eEWq+/usru/MCovBzKKBNH3PyDfj
+VMfaij76A6P05Qh6OJQH7cZAJX9Yp+LjWTUfP5KpNTh+YzM2R2rp7Yq1iy1cyBLY
+d/WmsL2kbT1Zjc00D97e32HmWXDbqEygczoMVtN47fqbuBgwoK7+cVh19bEKkxn7
+mqYPc1lBCXGIgmJh0mtxZr/My5RRNmb1T2DZObWsOSOqOrx/uhNO5HFaDHdeeL9s
+M+BDCEIkft5e/AdF5JQZOsUqazAHQUaB4C7m52/wdqZXtXDK5lzTk558Q25we1Fi
+NRIHAoIBAQCM/OdIKkkCFRyao4wa+9kLCNYFYdOYyJZlgihBQFCsOKaLjX3DjKLH
+jP0wnmMEDDj4u3CbBWUnck5DyhhctmhGbKtlswL8/rWKwNuB81iQjqTfdkuTC19y
+hDprsSFf2q/g3rmmQN+gkEc505+N21Saf5NsS7sIvge3U8AdG9EezpOGLR55fLLL
+NT3XTj8Lb226Vc12SSebUH5spnAagQ4k1Tp5jiG6mVOeobnKwKdIrmjz0oZtbXoO
+TxXhZu4QMB43YB1F8JFVqTZMiWkaJVm+9OPGDOYSiZvKrAlQGnXC1Tu9j9LzCdLw
+EMFD4S9908gAmV1/qNe4pZKB6c26xmh0
+-----END PRIVATE KEY-----

requirements.txt

@@ -1,3 +1,6 @@
 actualpy
 enablebanking_sdk
 python-dotenv
+fastapi
+uvicorn[standard]
+PyJWT

src/bank_client.py

@@ -1,17 +1,8 @@
-import enablebanking
 from .config import Config
+from src.client.httpclient import BankClient as HttpBankClient
 
-class BankClient:
+class BankClient(HttpBankClient):
     def __init__(self):
-        self.api_client = enablebanking.ApiClient(
-            client_id=Config.EB_CLIENT_ID,
-            client_secret=Config.EB_CLIENT_SECRET
-        )
-
-    def authenticate(self):
-        # Placeholder for bank authentication logic
-        pass
-
-    def fetch_transactions(self, account_id, start_date):
-        # Placeholder for fetching transactions from bank
-        pass
+        super().__init__()
+    def get_application_details(self):
+        return super().get_application_details()

src/client/httpclient.py

@@ -0,0 +1,151 @@
+import os
+import uuid
+from datetime import datetime, timezone, timedelta
+from urllib.parse import urlparse, parse_qs
+import requests
+import jwt as pyjwt
+from src.config import Config
+
+class ActualClient:
+    def __init__(self):
+        self.base_url = Config.ACTUAL_SERVER_URL
+        self.password = Config.ACTUAL_PASSWORD
+        self.budget_id = Config.ACTUAL_BUDGET_ID
+        self.encryption_password = Config.ACTUAL_ENCRYPTION_PASSWORD
+
+    def push_transactions(self, transactions):
+        # TODO: Implement actualpy integration
+        pass
+
+class BankClient:
+    def __init__(self):
+        self.app_id = Config.EB_APP_ID
+        self.pem_file = Config.EB_PEM_FILE
+        self.bank_name = Config.EB_BANK_NAME
+        self.country_code = Config.EB_COUNTRY_CODE
+        self.api_base_url = Config.EB_API_BASE_URL
+        self._app_details = None
+
+    @property
+    def token(self):
+        """Generates a fresh JWT token for Enable Banking API."""
+        iat = int(datetime.now().timestamp())
+        payload = {
+            "iss": "enablebanking.com",
+            "aud": "api.enablebanking.com",
+            "iat": iat,
+            "exp": iat + 3600,
+        }
+        with open(self.pem_file, "rb") as f:
+            private_key = f.read()
+        
+        return pyjwt.encode(
+            payload,
+            private_key,
+            algorithm="RS256",
+            headers={"kid": self.app_id},
+        )
+
+    def _get_headers(self):
+        return {"Authorization": f"Bearer {self.token}"}
+
+    def get_application_details(self):
+        """Fetches and caches application details."""
+        if self._app_details:
+            return self._app_details
+            
+        r = requests.get(f"{self.api_base_url}/application", headers=self._get_headers())
+        r.raise_for_status()
+        self._app_details = r.json()
+        return self._app_details
+
+    def get_auth_url(self, redirect_url=None, state=None):
+        """Initiates bank authentication and returns the redirect URL."""
+        if not redirect_url:
+            app = self.get_application_details()
+            redirect_url = app["redirect_urls"][0]
+            
+        body = {
+            "access": {
+                "valid_until": (datetime.now(timezone.utc) + timedelta(days=10)).isoformat()
+            },
+            "aspsp": {"name": self.bank_name, "country": self.country_code},
+            "state": state or str(uuid.uuid4()),
+            "redirect_url": redirect_url,
+            "psu_type": "personal",
+        }
+        
+        r = requests.post(f"{self.api_base_url}/auth", json=body, headers=self._get_headers())
+        r.raise_for_status()
+        return r.json()["url"]
+
+    def create_session(self, redirected_url_or_code):
+        """Exchanges the redirect URL or code for a user session."""
+        code = redirected_url_or_code
+        if "code=" in redirected_url_or_code:
+            code = parse_qs(urlparse(redirected_url_or_code).query)["code"][0]
+            
+        r = requests.post(
+            f"{self.api_base_url}/sessions", 
+            json={"code": code}, 
+            headers=self._get_headers()
+        )
+        r.raise_for_status()
+        return r.json()
+
+
+    def get_accounts(self, session_id):
+        """Lists accounts associated with a session."""
+        r = requests.get(
+            f"{self.api_base_url}/sessions/{session_id}/accounts",
+            headers=self._get_headers()
+        )
+        r.raise_for_status()
+        return r.json().get("accounts", [])
+
+    def get_balances(self, account_id):
+        """Retrieves balances for a specific account."""
+        r = requests.get(
+            f"{self.api_base_url}/accounts/{account_id}/balances",
+            headers=self._get_headers()
+        )
+        r.raise_for_status()
+        return r.json()
+
+    def fetch_transactions(self, account_id, date_from=None, date_to=None):
+        """
+        Fetches transactions for a specific account with pagination support.
+        :param account_id: The unique identifier of the account.
+        :param date_from: ISO date string (YYYY-MM-DD). Defaults to 90 days ago.
+        :param date_to: ISO date string (YYYY-MM-DD). Defaults to today.
+        """
+        if not date_from:
+            date_from = (datetime.now(timezone.utc) - timedelta(days=90)).date().isoformat()
+        
+        query = {"date_from": date_from}
+        if date_to:
+            query["date_to"] = date_to
+
+        all_transactions = []
+        continuation_key = None
+
+        while True:
+            params = query.copy()
+            if continuation_key:
+                params["continuation_key"] = continuation_key
+
+            r = requests.get(
+                f"{self.api_base_url}/accounts/{account_id}/transactions",
+                params=params,
+                headers=self._get_headers(),
+            )
+            r.raise_for_status()
+            
+            data = r.json()
+            all_transactions.extend(data.get("transactions", []))
+            
+            continuation_key = data.get("continuation_key")
+            if not continuation_key:
+                break
+                
+        return all_transactions

src/config.py

@@ -4,10 +4,15 @@ from dotenv import load_dotenv
 load_dotenv()
 
 class Config:
-    EB_CLIENT_ID = os.getenv("EB_CLIENT_ID")
-    EB_CLIENT_SECRET = os.getenv("EB_CLIENT_SECRET")
-    
+    EB_APP_ID = os.getenv("EB_APP_ID")
+    EB_PEM_FILE = os.getenv("EB_PEM_FILE")
+    EB_BANK_NAME = os.getenv("EB_BANK_NAME")
+    EB_COUNTRY_CODE = os.getenv("EB_COUNTRY_CODE")
+    EB_API_BASE_URL = os.getenv("EB_API_BASE_URL")
+
     ACTUAL_SERVER_URL = os.getenv("ACTUAL_SERVER_URL")
     ACTUAL_PASSWORD = os.getenv("ACTUAL_PASSWORD")
     ACTUAL_BUDGET_ID = os.getenv("ACTUAL_BUDGET_ID")
     ACTUAL_ENCRYPTION_PASSWORD = os.getenv("ACTUAL_ENCRYPTION_PASSWORD")
+    SERVER_PUBLIC_URL = os.getenv("SERVER_PUBLIC_URL")
+    SERVER_PORT = int(os.getenv("SERVER_PORT", 8000))

src/main.py

@@ -0,0 +1,61 @@
+from fastapi import FastAPI
+from src import client
+from .bank_client import BankClient
+from .actual_client import ActualClient
+
+app = FastAPI(title="Actualize API")
+
+@app.get("/")
+async def root():
+    return {"message": "Actualize API is running"}
+
+@app.post("/sync")
+async def trigger_sync():
+    # Placeholder for sync logic
+    return {"status": "Sync initiated"}
+
+@app.get("/health")
+async def health():
+    return {"status": "healthy"}
+
+@app.get("/bank/application")
+async def get_bank_application_details():
+    bank_client = BankClient()
+    details = bank_client.get_application_details()
+    return details
+
+@app.get("/bank/auth")
+async def get_bank_auth():
+    """Returns a login URL for the bank."""
+    bank_client = BankClient()
+    auth_url = bank_client.get_auth_url()
+    return {"auth_url": auth_url}
+
+@app.get("/bank/callback")
+async def bank_callback(code: str):
+    """Exchanges the 'code' from the bank redirect for a session_id."""
+    bank_client = BankClient()
+    session = bank_client.create_session(code)
+    return session
+
+@app.post("/bank/transactions")
+async def sync_bank_transactions(session_id: str):
+    bank_client = BankClient()
+    accounts = bank_client.get_accounts(session_id=session_id)
+    
+    if not accounts:
+        return {"transactions": [], "message": "No accounts found for this session"}
+
+    # Use 'uid' as per Enable Banking API and fetch via the instance
+    account_uid = accounts[0]["uid"]
+    transactions = bank_client.fetch_transactions(
+        account_id=account_uid, 
+        date_from="2024-01-01"
+    )
+
+    return {"transactions": transactions}
+
+if __name__ == "__main__":
+    import uvicorn
+    uvicorn.run(app, host="0.0.0.0", port=8000)
+