Construction of a local full node Blockchain researcher from scratch
As a creator, you are not alien to create tools and explore Blockchains. However, when using third -party Blockchain researchers such as Blockscout, Ethercan or Infura, there is often a limited number of queries per second (RP), which you can submit before hitting your internet connection capacity. And what if you want to control your blockchain more? Want to create a local full -knot researcher to ask Blockchain without relying on the external API?
Open code project case
In this article, we will explore the advantages of creating the open source Blockchain Explorer from scratch and show how to do it with some simple steps.
Why create your own Blockchain Explorer?
Creating your Blockchain Explorer gives you some advantages:
* More management : By fully managing your code base, you can make sure everything works as expected without relying on third party services.
* Scaling : As the number of consumers increases, the local full of the node researcher allows you to connect at the same time, which can lead to faster performance and achieve greater availability.
* Security : With direct access to blockchain data, you can implement reliable security measures such as encryption and authentication to protect your user data.
Basic Basics: Creating a local full node researcher
We will use Python as your programming language to create a local full -knot Explorer. We will focus on the creation of a simple, easy implementation that uses only Ethereum Blockchain protocol.
`Python
Import Hashlib
Import JSON
Classroom block:
Def __init __ (self, bag, arrows, previous_hash, time tag, mining):
Self.hash = bags
self.index = arrow
self.previous_hash = previous_hash
Self.timestamp = Time Tag
SELF.MINER = MINER
`
Step 1: Set the Ethereum node
First we need to create a local Ethereum knot using Web3.py. We will use the Ether Library to combine Blockchain.
`Python
From Web3 Import Web3
W3 = WEB3 (Web3.Httpprovider (‘http: // Localhost: 8545’))
Change your local Ethereum network
`
Step 2: Create a block
Now that we have our own knot, let’s create a new block. To generate surgery, we will use the CreateTransaction method and add it to Blockchain.
`Python
Def Create_block (data):
return W3.eth.Gettransationcount (W3.CurrentProvider)
`
Step 3: Sign the block
Before sending a block to the network, we need to sign it using our account with a private key. We will use the Sightransaction method for this.
`Python
Def Sign_block (TX_DATA):
return W3.eth Account.Sign_transACTION ([TX_DATA], W3.eth.Gettransationcount (W3.CurrentProvider)). SignEDtransACTION
`
Step 4: Add a block to Blockchain
Now that we have a signed operation, let’s add it to Blockchain using the Add_block method.
`Python
Def Add_block (Block_data):
return W3.eth.SendrawtransACTION (Block_data)
`
To put everything together
Here is a simple example of how you can use these steps to create a local entire node researcher:
`Python
Import Hashlib
Import JSON
Classroom block:
Def __init __ (self, bag, arrows, previous_hash, time tag, mining):
Self.hash = bags
self.index = arrow
self.previous_hash = previous_hash
Self.timestamp = Time Tag
SELF.MINER = MINER
Def Create_block (data):
return W3.eth.Gettransationcount (W3.CurrentProvider)
Def Sign_block (TX_DATA):
return W3.eth.account.sign_transACTION ([TX_DATA], W3.eth.Gettransationcount (W3.CurrentProvider)). SignEDtransACTION
Def Add_block (Block_data):
return W3.eth.