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      • Eject a wallet
      • Legacy documentation
        • Back up a wallet
          • Backup Options
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      • Connect with WalletConnect
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      • Add custom signature hooks
      • MPC progress callbacks
      • Portal API methods
      • Eject a wallet
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        • Back up a wallet
          • Backup Options
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  1. Guides
  2. Web

Using the EIP-1193 Provider

portal.provider is compliant with the EIP-1193 specification and can be used with libraries like ethers.js and web3.js. This guide will walk you through using portal.provider with ethers.js.

PreviousEject a walletNextLegacy documentation

Last updated 4 months ago

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Here's a code snippet that sends a transaction with ethers.js backed by portal.provider.

// update portal to use your chain of choice 
portal.updateChain('<chainReference>')

// get ethers.js Signer backed by portal.provider
const ethersProvider = new ethers.BrowserProvider(portal.provider)
const ethersSigner = await ethersProvider.getSigner()

// Send the transaction
const tx = await ethersSigner.sendTransaction({
  to: '<address>',
  value: ethers.parseEther('0.001'),
})

// wait for the transaction to be mined
const receipt = await tx.wait()

Let's break it down.

First, portal.updateChain is used to bind portal.provider to a specific EVM chain. It takes the chain's reference, for example 11155111 for Sepolia, as argument.

portal.provider is then supplied to . The returned object is an and to the chain. To be able to send a transaction we need a which ethersProvider.getSigner returns.

The next bit of code is ethers.js specific and uses ethersSigner.sendTransaction to send 0.001 ETH to the address specified. The code also waits for the transaction to be mined.

That's all! We've successfully used portal.provider and ethers.js to send a transaction!

CAIP-2
ethers.js BrowserProvider
ethers.js Provider
supports read-only requests
Signer