Handle Tokens
Tokens are created and used via transactions, the token transfer is however executed inside internal transactions. Problem: Internal transactions are not real transactions and are therefore not found in the raw_data. Possible solutions: If a contract is created check if it is a ERC20 or similar token by calling the name, symbol and total supply funtions (needs abi). If yes store the address in a db table called Tokens. In the same transaction should then be a "Transfer" event which contains from, to and value.