The alchemyProvider configures the chains with Alchemy RPC URLs and also provides an ethers.js AlchemyProvider.
Visit ethers.js AlchemyProvider.
import { chain, configureChains } from 'vagmi';import { alchemyProvider } from 'vagmi/providers/alchemy';const alchemyId = import.meta.env.ALCHEMY_ID;const { chains, provider } = configureChains( [chain.mainnet, chain.polygon], [alchemyProvider({ alchemyId })],);{ chains: Chain[], provider: AlchemyProvider, webSocketProvider: AlchemyWebSocketProvider}Your Alchemy ID from the Alchemy Dashboard.
If no Alchemy ID is provided, it will use the public Alchemy ID. It is recommended to provide your own Alchemy ID to prevent being rate-limited.
import { chain, configureChains } from 'vagmi';import { alchemyProvider } from 'vagmi/providers/alchemy';const alchemyId = import.meta.env.ALCHEMY_ID;const { chains, provider } = configureChains( [chain.mainnet, chain.polygon], [alchemyProvider({ alchemyId })],);The frequency in milliseconds at which the provider polls.
import { chain, configureChains } from 'vagmi';import { alchemyProvider } from 'vagmi/providers/alchemy';const alchemyId = import.meta.env.ALCHEMY_ID;const { chains, provider } = configureChains( [chain.mainnet, chain.polygon], [alchemyProvider({ alchemyId, pollingInterval: 5000 })],);The priority used for the provider. Lower-value priorities are favoured over higher-value priorities. If multiple providers share the same priority, they are chosen at random.
import { chain, configureChains } from 'vagmi';import { alchemyProvider } from 'vagmi/providers/alchemy';const alchemyId = import.meta.env.ALCHEMY_ID;const infuraId = import.meta.env.INFURA_ID;const { chains, provider } = configureChains( [chain.mainnet, chain.polygon], [ alchemyProvider({ alchemyId, priority: 0 }), infuraProvider({ infuraId, priority: 1 }), ],);The timeout in milliseconds after which another provider will be attempted.
import { chain, configureChains } from 'vagmi';import { alchemyProvider } from 'vagmi/providers/alchemy';const alchemyId = import.meta.env.ALCHEMY_ID;const infuraId = import.meta.env.INFURA_ID;const { chains, provider } = configureChains( [chain.mainnet, chain.polygon], [ alchemyProvider({ alchemyId, stallTimeout: 1000 }), infuraProvider({ infuraId, stallTimeout: 1000 }), ],);The weight a response from this provider provides. This can be used if a given provider is more trusted.
import { chain, configureChains } from 'vagmi';import { alchemyProvider } from 'vagmi/providers/alchemy';const alchemyId = import.meta.env.ALCHEMY_ID;const infuraId = import.meta.env.INFURA_ID;const { chains, provider } = configureChains( [chain.mainnet, chain.polygon], [ alchemyProvider({ alchemyId, weight: 1 }), infuraProvider({ infuraId, weight: 2 }), ],);