08 Feb Metamask: How to get networkVersion with ethers
Here is an article on how to get ‘network surgion’ with the eetres:
Obtaining networkVersion in Ethers.js: a step by step guide
When creating a Decentralized Application (DAPP) using the Ethers.js library, one of the essential information you need is your network version. In this article, we will examine the process of obtaining ‘network surgionusing Ethers.js.
What is Ether.js and network version?
Ethers.JS is a popular JavaScript library for the construction of Ethereum -based applications, including DAPPs. It provides a simple way to interact with Blockchain Ethereum. The network version refers to the current state of the network, including the block number, the gas limit and other relevant information.
Step 1: Import Ethers.js
First, Import the Ethers.js library in your JavaScript file:
JavaScript
Import {eetres} of ‘eetres’;
`
Step 2: Obtaining an instance of the Ethereum provider
Create an instance of the Ethereum provider using Ether.Providers.Web3:Newherhers.providers.web3 ();
Step 3: Obtaining the version of the network
To get the network version, you can use the following code:
`JavaScript
Web3.eth.net.version
`
This will return a string indicating the current network version. For example:
`
0x4e1b5d5a4c34 …
`
Step 4: Checking network errors
NetworkVersion ‘may cause an error if there is an Ethereum provider or network connection problem. You can check if there are errors using the following code:
`JavaScript
Web3.eth.net.status ();
if (web3.et.net.status ()! == ‘connected’) {
console.error (‘network error:’, web3.eth.net.status ());
}
`
Step 5: Obtaining the block number
You can also get the current block number to see if it is a valid network version:
`JavaScript
CONST BLOCKNUMBER = Wait Ethirs.getLatestBlocknumber ();
console.log (blocknumber);
`
Gathering everything
Here is an example of code snippet that demonstrates how to use ethers.js to get the network version and check for errors:
`JavaScript
Import {eetres} of ‘eetres’;
ASSINCRONE FUNCTION MAIN () {
to try {
CONST WEB3 = new Ethers.Providers.Web3 ();
// Get the network version
CONST NETWARKVERSION = Web3.eth.net.version;
console.log (network version: $ {networking});
// Check for network errors
if (web3.et.net.status ()! == ‘connected’) {
console.error (‘network error:’, web3.eth.net.status ());
}
} catch (error) {
console.error (error);
}
}
main();
`
In this example, we created an instance of the Web3 provider and get the network version using Ether.providers.web3 (). Eth.net.version. Then we verify that the network is connected and registered any errors that may occur.
By following these steps, you can easily get the network version of your DAPP using eter.js. Remember to always deal with errors and exceptions correctly in the production code.
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