diff --git a/.gitignore b/.gitignore
index 12d1859..8c96830 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,4 +2,6 @@
 *.csv
 *.log
 server_knowledge_cache.json
-data/*
\ No newline at end of file
+data/*
+.venv/*
+__pycache__/*
diff --git a/main.py b/main.py
index b973522..a68ce38 100644
--- a/main.py
+++ b/main.py
@@ -10,7 +10,7 @@ API_TOKEN = os.getenv('API_TOKEN')
 BUDGET_ID = os.getenv('BUDGET_ID')
 logging.basicConfig(level=logging.DEBUG)
 
-entities = ['accounts', 'categories', 'months', 'payees', 'transactions', 'scheduled_transactions']
+entities = ['accounts', 'categories', 'months', 'payees', 'transactions']#, 'scheduled_transactions']
 ingest_info = {}
 
 ingest_info['entities'] = entities
@@ -20,5 +20,5 @@ ingest_info['API_TOKEN'] = API_TOKEN
 ingest_info['BUDGET_ID'] = BUDGET_ID
 
 
-Ingest(ingest_info)
-RawToBase(entities, 'data/raw', 'data/base')
\ No newline at end of file
+#Ingest(ingest_info)
+RawToBase(entities)
\ No newline at end of file
diff --git a/raw_to_base.py b/raw_to_base.py
index d038c17..9f82ca6 100644
--- a/raw_to_base.py
+++ b/raw_to_base.py
@@ -1,74 +1,105 @@
-import pandas
-import json
 import os
+import json
 import logging
 from datetime import datetime
-from typing import List
+from typing import List, Dict, Any
+import polars as pl
 
 class RawToBase:
-    def __init__(self, entities: List[str], raw_data_path: str, base_data_path: str):
+    def __init__(self, entities: List[str]):
         self.entities = entities
-        self.raw_data_path = raw_data_path
-        self.base_data_path = base_data_path
+        self.config = {
+            'accounts': {'unique_id': 'accounts_id'},
+            'categories': {'unique_id': 'categories_id'},
+            'months': {'unique_id': 'months_month'},
+            'payees': {'unique_id': 'payees_id'},
+            'transactions': {'unique_id': 'transactions_id'},
+            'scheduled_transactions': {'unique_id': 'id'}
+        }
+        self.raw_data_path = 'data/raw'
+        self.base_data_path = 'data/base'
         self.data = {}
         self.base_data = {}
         logging.basicConfig(level=logging.DEBUG)
-        self._load_raw_data()
-        self._load_existing_base_data()
-        self._combine_data()
-        self._resolve_duplicates()
-        self._save_base_data()
+        self.process_entities()
     
-    def _load_raw_data(self):
+    def process_entities(self):
         for entity in self.entities:
-            entity_path = os.path.join(self.raw_data_path, entity)
-            self.data[entity] = []
-            logging.debug(f"Loading data for entity: {entity} from path: {entity_path}")
-            for file_name in os.listdir(entity_path):
-                if file_name.endswith('.json'):
-                    file_path = os.path.join(entity_path, file_name)
-                    logging.debug(f"Reading file: {file_path}")
-                    try:
-                        with open(file_path, 'r') as f:
-                            data = json.load(f)
-                            for record in data:
-                                record['ingestion_date'] = datetime.strptime(file_name.split('.')[0], '%Y%m%d').date()
-                            self.data[entity].append(data)
-                            logging.debug(f"Successfully loaded data from file: {file_path}")
-                    except Exception as e:
-                        logging.error(f"Failed to load data from file: {file_path}, error: {e}")
+            self._load_raw_data(entity)
+            self._load_existing_base_data(entity)
+            self._combine_data(entity)
+            #self._resolve_duplicates(entity)
+            self._save_base_data(entity)
     
-    def _load_existing_base_data(self):
-        for entity in self.entities:
-            base_path = os.path.join(self.base_data_path, 'base', entity, f'{entity}.parquet')
-            if os.path.exists(base_path):
-                logging.debug(f"Loading existing base data for entity: {entity} from path: {base_path}")
-                self.base_data[entity] = pandas.read_parquet(base_path)
-                logging.debug(f"Successfully loaded existing base data for entity: {entity}")
-            else:
-                self.base_data[entity] = pandas.DataFrame()
-                logging.debug(f"No existing base data found for entity: {entity}, starting with an empty DataFrame")
+    def _load_raw_data(self, entity):
+        entity_path = os.path.join(self.raw_data_path, entity)
+        self.data[entity] = []
+        logging.debug(f"Loading data for entity: {entity} from path: {entity_path}")
+        
+        for file_name in os.listdir(entity_path):
+            if file_name.endswith('.json'):
+                file_path = os.path.join(entity_path, file_name)
+                logging.debug(f"Reading file: {file_path}")
+                try:
+                    with open(file_path, 'r') as f:
+                        data = json.load(f)
+                        modified_data = []
+                        for record in data.get(f'{entity}', []):
+                            if isinstance(record, dict):
+                                record['ingestion_date'] = datetime.strptime(file_name.split('.')[0], '%Y%m%d%H%M%S').date()
+                                modified_data.append(record)
+                            else:
+                                modified_data.append({'record': record, 'ingestion_date': datetime.strptime(file_name.split('.')[0], '%Y%m%d%H%M%S').date()})
+                        self.data[entity].append(modified_data)
+                        logging.debug(f"Successfully loaded data from file: {file_path}")
+                except Exception as e:
+                    logging.error(f"Failed to load data from file: {file_path}, error: {e}")
+                    exit(1)
     
-    def _combine_data(self):
-        for entity in self.entities:
-            logging.debug(f"Combining data for entity: {entity}")
-            combined_data = []
+    def _load_existing_base_data(self, entity):
+        base_path = os.path.join(self.base_data_path, 'base', entity, f'{entity}.parquet')
+        if os.path.exists(base_path):
+            logging.debug(f"Loading existing base data for entity: {entity} from path: {base_path}")
+            self.base_data[entity] = pl.read_parquet(base_path)
+            logging.debug(f"Successfully loaded existing base data for entity: {entity}")
+        else:
+            self.base_data[entity] = pl.DataFrame()
+            logging.debug(f"No existing base data found for entity: {entity}, starting with an empty DataFrame")
+    
+    def _combine_data(self, entity):
+        logging.debug(f"Combining data for entity: {entity}")
+        combined_data = []
+        
+        if entity == 'categories':
+            for data in self.data[entity]:
+                for group in data:
+                    if 'category_groups' in group:
+                        for category_group in group['category_groups']:
+                            for category in category_group['categories']:
+                                combined_data.append(category)
+        else:
             for data in self.data[entity]:
                 combined_data.extend(data)
-            new_data_df = pandas.DataFrame(combined_data)
-            self.base_data[entity] = pandas.concat([self.base_data[entity], new_data_df], ignore_index=True)
-            logging.debug(f"Successfully combined data for entity: {entity}")
-    
-    def _resolve_duplicates(self):
-        for entity in self.entities:
-            logging.debug(f"Resolving duplicates for entity: {entity}")
-            self.base_data[entity] = self.base_data[entity].sort_values('ingestion_date', ascending=False).drop_duplicates('id', keep='first')
-            logging.debug(f"Successfully resolved duplicates for entity: {entity}")
+        
+        new_data_df = pl.DataFrame(combined_data)
+        
+        # Ensure the unique id column is preserved
+        # unique_id = self.config[entity]['unique_id']
+        # if unique_id not in new_data_df.columns:
+        #     logging.error(f"Unique ID column '{unique_id}' not found in the combined data for entity: {entity}")
+        #     exit(1)
+        
+        self.base_data[entity] = new_data_df
+        logging.debug(f"Successfully combined data for entity: {entity}")
 
-    def _save_base_data(self):
-        for entity in self.entities:
-            base_path = os.path.join(self.base_data_path, 'base', entity)
-            os.makedirs(base_path, exist_ok=True)
-            file_path = os.path.join(base_path, f'{entity}.parquet')
-            self.base_data[entity].to_parquet(file_path)
-            logging.debug(f"Saved base data for entity: {entity} to path: {file_path}")
\ No newline at end of file
+    def _resolve_duplicates(self, entity):
+        logging.debug(f"Resolving duplicates for entity: {entity}")
+        unique_id = self.config[entity]['unique_id']
+        self.base_data[entity] = self.base_data[entity].sort(by='ingestion_date').unique(subset=unique_id, keep='first')
+        logging.debug(f"Successfully resolved duplicates for entity: {entity}")
+
+    def _save_base_data(self, entity):
+        os.makedirs(self.base_data_path, exist_ok=True)
+        file_path = os.path.join(self.base_data_path, f'{entity}.parquet')
+        self.base_data[entity].write_parquet(file_path)
+        logging.debug(f"Saved base data for entity: {entity} to path: {file_path}")
diff --git a/requirements.txt b/requirements.txt
index 6314c01..a6cff53 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,3 @@
 python-dotenv
-polars
\ No newline at end of file
+polars
+requests
\ No newline at end of file
diff --git a/test.py b/test.py
new file mode 100644
index 0000000..6fcaf23
--- /dev/null
+++ b/test.py
@@ -0,0 +1,13 @@
+import polars as pl
+entities = ['accounts', 'categories', 'months', 'payees', 'transactions', 'scheduled_transactions']
+# Define the path to the transactions parquet file
+
+
+#file_path = 'data/base/categories.parquet'
+file_path = 'data/base/accounts.parquet'
+
+# Read the parquet file into a polars DataFrame
+transactions_df = pl.read_parquet(file_path)
+
+# Display the DataFrame
+print(transactions_df)
\ No newline at end of file