Using RPC Providers

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Summary

We provide the useRpcProviders hook that allows direct access to RPC providers for EVM & Solana. Rpc providers can be used to make RPC calls to the blockchain while also providing convenience methods without going through a wallet.

Each provider will use the RPC configured in the Dashboard if present, otherwise they fall back to public RPCs urls. By default, all EVM and Solana networks have public default providers as shown in this table:

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Dashboard Configuration

To enter your provider url for a given network:

1. Go to the Chains & Networks page in your Dashboard.
2. Click on the chain to open the details tab
3. Click the down down arrow to expand a network
4. Enter your Provider Url
5. Click the test button to check url

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Usage

You are able to use the useRpcProviders hook to obtain an object with rpc providers, and this hook expects a selector parameter that you must use to select either EVM or Solana rpc providers.

import { useRpcProviders } from '@dynamic-labs/sdk-react-core'
import { evmProvidersSelector } from '@dynamic-labs/ethereum-core'
import { solanaProvidersSelector } from '@dynamic-labs/solana-core'

const App = () => {
  const evmProviders = useRpcProviders(evmProvidersSelector)
  const solanaProviders = useRpcProviders(solanaProvidersSelector)
}

The hook returns either EvmRpcProviderMethods or SolanaRpcProviderMethods, with the following fields:

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Example

Below is a simple example using EVM providers to fetch an arbitrary ENS mapping:

import { useRpcProviders } from '@dynamic-labs/sdk-react-core'
import { evmProvidersSelector } from '@dynamic-labs/ethereum-core'

const useLogEnsMapping = () => {
  const { defaultProvider } = useRpcProviders(evmProvidersSelector)

  const mainnetProvider = defaultProvider?.provider;

  const ensAddress = mainnetProvider.resolveName('myname.eth');

  console.log('address for myname.eth', ensAddress);
}