Connecting Remix
Last updated
Last updated
Remix is a browser-based IDE (Integrated Development Environment) for developing Solidity contracts. This document will cover connecting Remix with Klaytn. If you want to know more about how to use Remix, please refer to or .
Klaytn supports contracts written in Solidity, and is compatible with the London version of EVM. Also, Solidity version 0.8.x and lower are supported in Klaytn. Therefore, to deploy the contract on Klaytn, the contract must be compiled with the London EVM version.
Click solidity compiler, and then choose London EVM version in 'Advanced Configurations'.
You need a local plugin to connect to the Klaytn network using Remix. The process is described in the following:
Click plugin manager, and then click Connect to a Local Plugin.
Put https://klaytn-remix-plugin.ozys.net in the URL. Use any name what you want in the Plugin Name and Display Name.
If the [Klaytn] tab appears, you are ready to interact with Klaytn.
Click on the [Klaytn] tab.
Select the appropriate [Environment].
You can select Baobab, Cypress, Injected Caver, Caver Provider or Injected Web3.
[Baobab]: Connects to the Baobab network
[Cypress]: Connects to the Cypress network
[Injected Caver]: Connects to injected caver(e.g., Kaikas)
[Caver Provider]: Connects directly to Klaytn node, which supports RPC
[Injected Web3]: Connects to injected web3(e.g., Metamask)
You can import keys from private key or Keystore.
Click plus button next to the ACCOUNT.
Then put private key or keystore.
You can also import keys for the feePayer. It only supports private key.
Note: If you use the Public EN from Baobab, instead of from your local environment, you won't be connected to your account because the personal API is disabled.
Select [Caver Provider] in the Environment menu.
Once you are successfully connected to the Network, you will see the Chain ID and Account of the connected network.
Select [Injected Web3] on the Remix Environment menu.
When you see the MetaMask pop-up, select the account by clicking it.
Once you are successfully connected to the Network, you will see the Chain ID and Account of the connected network.
Select [Injected Caver] on the Remix Environment menu.
When you see the Kaikas pop-up, click [Connect].
Once you are successfully connected to the Network, you will see the Chain ID and Account of the connected network.
Add KlaytnGreeter.sol and write the testing code.
On the Solidity Compile tab, select [Compile KlaytnGreeter.sol] to compile the contract code.
It is better to turn on the 'Auto compile' option.
In the Deploy & Run Transactions tab, click [Deploy] to deploy the compiled contract.
You can view the deployed contract. You can test or debug it.
Set up an Endpoint Node in the local environment by following the instructions in .
Create an account by following the instructions in .
Enter the RPC address of the EN in the Caver Provider Endpoint. Local EN (default):
Connect Klaytn with MetaMask by referring to the .
We will be using the sample contract.
