SubQuery adds EVM functionality, boosting Kusama and Polkadot development | Invezz

Leading Polkadot data indexing solution SubQuery has added Ethereum (ETH/USD) Virtual Machine (EVM) functionality in an integration with Moonriver and Moonbeam, giving Polkadot (DOT/USD) and Kusama (KSM/USD) cross-chain development a substantial boost.

With this, Polkadot and Ethereum developers can integrate EVM and Substrate data seamlessly into one place and use GraphQL to query this single data source.

First open source tool to query data across ETH and DOT

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This is the first tool of its kind, allowing developers to gather and query data flexibly across Ethereum and Polkadot/Kusama. The partnership with Moonbeam delivers a full-scale, unified data indexing solution for all blockchain data within Moonriver. It will benefit Moonriver’s growing application ecosystem a great deal.

One single mechanism to filter EVM transactions and logs

SubQuery’s newfound functionality makes it possible to query and filter EVM logs and transactions with just one tool. SubQuery’s filters are considerably more advanced than other indexers’, enabling filtering of transaction senders, non-contract transactions, contracts, and indexed log arguments. This way, developers can create a vast selection of projects that cater to their specific data needs.

Sam Zou, founder and CEO of SubQuery, explained:

While SubQuery is already serving millions of data queries each day to over 60 projects on Polkadot & Kusama, we are convinced that the web3 revolution needs more open-source and cross-chain solutions. Unlocking the wealth of data in the Ethereum ecosystem is a great step forward to fulfill the potential of parachains and the next generation of dApps. Moonbeam is a prime example of a leading parachain where we can offer a familiar, consistent experience and developer tools across multiple ecosystems.

Derek Yoo, CEO and founder of Moonbeam, concurred:

Moonbeam provides flexibility to developers by offering both Substrate and Web3 APIs, but this leads to challenges where you have to choose between visibility into Substrate or Web3 events and data. SubQuery’s new EVM support solves this problem by providing a unified API that has visibility across the Substrate and EVM layers of Moonbeam. This allows developers to have easy access into everything that is happening on the platform via a unified API. SubQuery will be releasing documentation and a detailed walk-through of how the integration works next week.