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Ethereum: What is the difference between chainstate and blocks folder?

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Ethereum: Understanding Chainstate Vs. Blocks the folder

In the ecosystem of the Ethereum, and the chain paths I Bloksfolderare key components for the Blockchain data and transition. However, they serve for various purposes, which is crucial to understanding their differences before you dive into reading and displaying data on the web interface.

Chainstate

MapChainstateis the central warehouse of the Ethereum state, which includes various information like:

  • Block height

  • Block number

  • Block the time tag

  • Number of transactions

  • Gas ​​price

  • Unconfirmed number of transactions

TheChainstate ‘map stores this information in the hierarchical structure, with each file represents a block or blockchain section. The files are organized in directory such as “State_root”, State_tree" andtx_count.

Block the folder

Blocksfolderis a response to individual blockchain failure blocks. Each block contains different data such as:

  • Block hash

  • Previous block hash (parent hash)

  • Number of transactions

  • Unconfirmed number of transactions

  • Gas ​​price

  • Time mark

Blocksfolderstores each block in a separate file, with each file represents one block.

Key differences

While both folders store the same types of data, there are key differences:

  • Chainstateis the Central State of the Ethereum State, and Wereas Blocksfolder ‘stores individual blocks.

  • Files in Chainstate have a hierarchical structure, with each directory containing sub -taxes and files, whileBlocksfolder has separate files for each block.

Reading and Data View

To read and display data on web -fronteda such as Blockchain Explorer website, you will also need to access the Chainstate and Blocks Blocks” folder. Here you can do it using Solidity (Ethereum programming) and Web3.JS:

`Javascript

Import * as a web3 from “Web3”;

Const Web3 = New Web3 (new web3provers.httpprovider (‘

// Get a chain

Const chain = web3.esth.chainstate;

// Get all blocks

Async Function Getblocks () {{

Const Txlist = wait for web3.Eth.get leaf transaction ();

for (some i = 0; i

Const block = txlist [i] .block;

// Read the block of data from Chainstate

Console.log (block.timestamp);

Iche

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// Get a certain block by his hash

Async Function Getblockbyhash () {{

Const blockhash = ‘0x1234567890ABCDEF’;

Const blockdata = waiting for web3.Eth.getblock (blockhash, true);

// Read the Blocks Block from Blocksfolder

Console.log (blockdata.hash);

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`

Data display on web front

To display data on web -fronteda such as Blockchain Explorer website, you will need to use the web3Js Library "Ethers" to interact with the Ethereum network and retrieve certain data. You can then use HTML5 canvas or other technologies for data visualization technology.

Here's an example of how you can display a block time mark using HTML5 Canvas:

HTML