Merge pull request #34 from cowprotocol/fix-key-name

Fix key name and addressed comments

.env.sample

@@ -21,4 +21,4 @@ ETHEREUM_NODE_URL=
 # Include these for fetching token prices
 COINGECKO_API_KEY=
 DUNE_API_KEY=
-MORALIS_KEY=
+MORALIS_API_KEY=

src/constants.py

@@ -14,7 +14,7 @@
     "0x83F20F44975D03b1b09e64809B757c47f942BEeA"
 )
 
-# Time limit after which Coingecko Token List is re-fetched (in seconds)
+# Time limit, currently set to 1 full day, after which Coingecko Token List is re-fetched (in seconds)
 COINGECKO_TOKEN_LIST_RELOAD_TIME = 86400
 
 # Time in seconds of 45 hours. Time limit after which 5-minute prices become unavailable.
@@ -27,4 +27,5 @@
 DUNE_PRICE_QUERY_ID = 3935228
 
 # Dune Query 3935228 uses an end_timestamp to limit results
+# (Buffer time to return results between start_timstamp and end_timestamp only)
 DUNE_QUERY_BUFFER_TIME = 100

src/helpers/blockchain_data.py

@@ -5,6 +5,8 @@
 
 
 class BlockchainData:
+    """Class provides functions for fetching blockchain data."""
+
     def __init__(self, web3: Web3):
         self.web3 = web3
 

src/helpers/database.py

@@ -5,6 +5,11 @@
 
 
 class Database:
+    """
+    Class is used to write data to appropriate tables for the slippage project
+    using a database connection.
+    """
+
     def __init__(self, engine: Engine, chain_name: str):
         self.engine = engine
         self.chain_name = chain_name

src/price_providers/moralis_pricing.py

@@ -41,7 +41,7 @@ def get_price(self, price_params: dict) -> float | None:
                 "to_block": block_number,
             }
             result = evm_api.token.get_token_price(
-                api_key=os.getenv("MORALIS_KEY"),
+                api_key=os.getenv("MORALIS_API_KEY"),
                 params=params,
             )
             if "nativePrice" in result and "value" in result["nativePrice"]: