researching on etherscan with api

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docs/eth_api_info.md

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+# getting info from Etherscan API
+
+Resources: 
+- https://github.com/pcko1/etherscan-python/blob/master/README.md
+- https://www.youtube.com/watch?v=pIOg-f0GBBk
+- https://rattibha.com/thread/1512983745988419588, 
+
+
+- register a free account on etherscan
+- install etherscan-python with: pip install etherscan-python
+- https://github.com/pcko1/etherscan-python/blob/master/README.md
+
+The github gives info on how to access the data in categories:
+- accounts:(examples)
+get_normal_txs_by_address(address, startblock, endblock, sort)
+eth.get_erc20_token_transfer_events_by_address(address, startblock, endblock, sort)
+
+You will get these columns from normal txs:
+['blockHash', 'blockNumber', 'confirmations', 'contractAddress', 'cumulativeGasUsed', 'from', 'gas', 'gasPrice', 'gasUsed', 'hash', 'input', 'isError', 'nonce', 'timeStamp', 'to', 'transactionIndex', 'txreceipt_status', 'value']
+
+- On the github there are example of responses returned.
+
+- contacts
+- transactions
+- blocks
+- GETH/Parity Proxy
+- Tokens
+- Gas tracker
+- Stats
+- Pro (PRO API key needed) for:
+	- get_hist_eth_balance_for_address_by_block_no
+	- get_daily_average_block_size
+    	- get_daily_block_count_and_rewards
+    	- get_daily_block_rewards
+    	- get_daily_average_block_time
+    	- get_daily_uncle_block_count_and_rewards
+    	- get_hist_erc20_token_total_supply_by_contract_address_and_block_no
+    	- get_hist_erc20_token_account_balance_for_token_contract_address_by_block_no
+    	- get_token_info_by_contract_address
+    	- get_daily_average_gas_limit
+    	- get_eth_daily_total_gas_used
+    	- get_eth_daily_average_gas_price
+    	- get_eth_daily_network_tx_fee
+    	- get_daily_new_address_count
+    	- get_daily_network_utilization
+    	- get_daily_average_network_hash_rate
+    	- get_daily_tx_count
+    	- get_daily_average_network_difficulty
+    	- get_eth_hist_daily_market_cap
+    	- get_eth_hist_price
+
+
+Other resources than Etherscan:
+- Coingecko --> we can create an api and request info
+- Infura: https://infura.io/ --> they have free tier with up to 100 k requests/day
+To use Infura with python, this is an example of code to use in python:
+
+from web3 import Web3
+
+w3 = Web3(Web3.HTTPProvider(projectID))
+receipt=w3.eth.get_transaction_receipt(trHash)
+
+-- Once you get the receipt, you need to get the DEX smart contract ABI --
+-- ABI basically tells you how does which function look like when you see it in logs --
+