ui export

db/.env

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+MB=123456789123456798
+POSTGRES_PASSWORD=change_me

db/docker-compose.yml

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+version: "3.5"
+
+services:
+
+  postgres:
+    image: postgres:10
+    volumes:
+      - "./metabase_data:/var/lib/postgresql/data"
+    restart: always
+    environment:
+      POSTGRES_DB: metabase
+      POSTGRES_USER: metabase_usr
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
+
+  metabase:
+    depends_on:
+      - postgres
+    image: metabase/metabase
+    ports:
+      - "3000:3000"
+    restart: always
+    environment:
+      MB_ENCRYPTION_SECRET_KEY: ${MB}
+      MB_DB_TYPE: postgres
+      MB_DB_DBNAME: metabase
+      MB_DB_PORT: 5432
+      MB_DB_USER: metabase_usr
+      MB_DB_PASS: ${POSTGRES_PASSWORD}
+      MB_DB_HOST: postgres
+ 
+  mongo:
+    image: mongo
+    restart: always
+    environment:
+      MONGO_INITDB_DATABASE: econ
+      MONGO_INITDB_ROOT_USERNAME: root
+      MONGO_INITDB_ROOT_PASSWORD: econ
+    ports:
+      - '27017:27017'
+    volumes:
+      - ./econ_data:/data/db
+  

db/export_to_mongo.py

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+from pymongo import MongoClient
+cmt="current_market_trades"
+cma="current_market_asks"
+cmb="current_market_bids"
+
+class MongoExporter():
+    
+    def __init__(self,conn_string,db,econ) -> None:
+        
+    # Provide the mongodb atlas url to connect python to mongodb using pymongo
+  
+ 
+    # Create a connection using MongoClient. You can import MongoClient or use pymongo.MongoClient
+        client = MongoClient(conn_string)
+ 
+     # Create the database for our example (we will use the same database throughout the tutorial
+        self.client=client[db]
+        self.econ=econ
+
+    def reset_market(self):
+        """Resets the current market data in the analytics stack"""
+        c=self.client
+        c[cmt].drop()
+        c[cma].drop()
+        c[cmb].drop()
+
+    def submit_full_market(self):
+        c=self.client
+        market=self.econ.get_component("ContinuousDoubleAuction")
+        self.reset_market()
+
+        for i in range(len(market.executed_trades)):
+            step=market.executed_trades[i]
+            if len(step)>0:
+                for transaction in step:
+                   transaction["step"]=i
+                   c[cmt].insert_one(transaction)
+        c[cma].insert_many(market.asks)
+        c[cmb].insert_many(market.bids)
+
+    
+
+
+
+ 
+
+  
+# This is added so that many files can reuse the function get_database()