Decode the blockchain: step-by-step instructions for reading Ethereum information
The blockchain is a decentralized, distributed ledger technology, which enables safe and transparent data storage and transmission. As a person who is interested in understanding how to use this powerful technology, reading information from the blockchain can be a fascinating persecution. Direct access to and analyze direct blockchain data without specialized tools or libraries. In this article we will deal with the world of Ethereum and examine the possibilities of reading blockchain information using Python.
Why read the blockchain information program -controlled?
Before we immerse yourself in the technical aspects, we quickly discuss why the program -supported access to blockchain data is required:
- Safety : If you access blockchain data directly, this can be a security risk if you have not properly checked the sources and intentions behind the data.
- Compliance : In industries such as finance or health care, the exact control is that blockchain data is precise and the regulations are compliant, precise control over access to the underlying data.
- Research and development : Analysis of blockchain data can help researchers and developers to understand the subtleties of this technology and to identify potential applications.
Ethereum Blockchain -API: A library for program -based access to Ethereum data
Fortunately, libraries are available that make it easier for it from the Ethereum Blockchain from reading information from the Ethereum blockchain. Such a library is “Ethers.py”, which offers a simple interface for access to Ethereum data.
Install Ethers.py
To install Ethers.py, you can use PIP:
`Bash
Install PIP Ethers
Read information from the blockchain programmatically
Here is an example -Code -Snippet that shows how information from the Ethereum blockchain is read with `ethers.py:
`Python
From Ethers import ethhinstance, provider
Set up an Ethereum provider (e.g. Infura or Gnosis)
provider = providers.httpprovider ('
Create a new instance of the Ethereum customer
Instance = ethinstance (provider)
Get the blockchain account information for the first block in the current transaction (since we are currently reading from the last block of the current TX)
block_number = 0
Blockhash = '0' '
tx_hash = 'your_tx_hash_here'
Get the latest block number and the hash
newest_block = instance.get_latest_blocknumber ()
If newest_block is not:
Print ("No blocks available.")
different:
neuest_block_info = instance.get_block_by_hash (newest_block ['hash'], block_number, 100)
For TX in newestem_block_info ['Transactions']:
print (tx ['von'])
In this example, we read information from the last block of a specific transaction. You can replace your_tx_hash_here with your actual Ethereum transaction -Hash.
additional tips and considerations
* Safety : Make sure that sensitive data (such as private keys) are treated safely.
* Data restrictions : The amount of data you can call up depends on the consensus mechanism of the blockchain network, the block size and the API response rate. Are prepared for limited results or high latency.
* Blockchain updates : If you update your Ethereum client, you should consider changes in the blockchain protocol.
Diploma
Reading information from the Ethereum Blockchain is now more accessible with libraries such as `ethers.py`. This step-by-step instructions should offer you a solid basis for researching and understanding the internal functioning of the Ethereum network. Stay curious and continue – there is always space to learn!