RPC proxy
Since the Arrowsquid release, Aquarium provides a built-in caching RPC proxy service. Currently, it is a premium feature, with plans to make a subset of calls available to free tier users.
Available networks
EVM
| Network name | network:protocol |
|---|---|
| Arbitrum One Mainnet | arbitrum-one:http |
| Arbitrum Goerli Testnet | arbitrum-goerli:http |
| Arbitrum Nova Mainnet | arbitrum-nova:http |
| Astar Mainnet | astar:http |
| Avalanche Mainnet | ava:http |
| Avalanche Testnet | ava-testnet:http |
| Base Goerli | base-goerli:http |
| Base Mainnet | base:http |
| BNB Smart Chain Mainnet | bsc:http |
| BNB Smart Chain Testnet | bsc-testnet:http |
| Ethereum Goerli | eth-goerli:http |
| Ethereum Mainnet | eth:http |
| Ethereum Sepolia | eth-sepolia:http |
| Evmos Mainnet | evmos:http |
| Fantom Mainnet | fantom:http |
| Fantom Testnet | fantom-testnet:http |
| Mantle Mainnet | mantle:http |
| Metis Mainnet | metis:http |
| Moonbase Alpha Testnet | moonbase-alpha:http |
| Moonbeam Mainnet | moonbeam:http |
| Moonriver Mainnet | moonriver:http |
| OKTC Mainnet | oktc:http |
| Optimism Goerli | optimism-goerli:http |
| Optimism Mainnet | optimism:http |
| Polygon Mainnet | polygon:http |
| Polygon Testnet | polygon-testnet:http |
| Polygon zkEVM Mainnet | polygon-zkevm:http |
| Polygon zkEVM Testnet | polygon-zkevm-testnet:http |
| Shiden Shibuya | shibuya:http |
| Shiden Mainnet | shiden:http |
| StarkNet Mainnet | starknet:http |
| Sui Testnet | sui-testnet:http |
Substrate
| Network name | network:protocol |
|---|---|
| Acala | acala:http |
| Aleph | aleph:http |
| Amplitude | amplitude:http |
| Astar | astar-substrate:http |
| Basilisk | basilisk:http |
| Darwinia | darwinia:http |
| Darwiniacrab | darwiniacrab:http |
| Eden | eden:http |
| Frequency | frequency:http |
| Hydradx | hydradx:http |
| Interlay | interlay:http |
| Karura | karura:http |
| Khala | khala:http |
| Kilt | kilt:http |
| Kintsugi | kintsugi:http |
| Kusama | kusama:http |
| Litentry | litentry:http |
| Moonbase | moonbase-substrate:http |
| Moonbeam | moonbeam-substrate:http |
| Moonriver | moonriver-substrate:http |
| Phala | phala:http |
| Polkadot | polkadot:http |
| Shibuya | shibuya-substrate:http |
| Shiden | shiden-substrate:http |
| Turing | turing:http |
| Zeitgeist | zeitgeist:http |
Enable the RPC add-on like this:
deploy:
addons:
rpc:
- moonriver:http
scale:
addons:
rpc:
max-rate: 10rps
Processor configuration
With the addon successfully enabled, your squid will get a unique proxied endpoint to the requested network. Aquarium will make its URL available at the RPC_${Upper(network)}_${Upper(protocol)} environment variable. Assert it to avoid compilation errors. We also recommend rate limiting RPC proxy requests on the processor side to the same rate as was used in the manifest:
import {assertNotNull} from '@subsquid/util-internal'
processor.setDataSource({
chain: {
url: assertNotNull(process.env.RPC_MOONRIVER_HTTP),
rateLimit: 10
},
archive: /* archive URL */
})