A GraphQL interface to Ethereum 🔥

▶️ Try out the Alpha on Infura: https://ethql-alpha.infura.io/graphql

Example queries.

EthQL is a server that exposes a GraphQL endpoint to the public Ethereum ledger. It works against the standard JSON-RPC APIs offered by all Ethereum clients. It is built in TypeScript, and thus leverages the vast ecosystem of GraphQL tooling while preserving compile-time type safety.

EthQL regards blockchain data as a graph, and leverages the extensibility of GraphQL to introduce additional functionality, amongst which are:

• Decoding of standard transactions (e.g. ERC20, ENS, ERC223, etc.) out of the box.
• New query patterns enabled by indexing solutions (e.g. all transactions between any two accounts).
• Automatic batching and caching of requests.
• New filtering capabilities.
• Simple, inline unit conversions.
• Enhancing public data with information overlays imported from other sources.

NOTE: This project is under heavy development.

Quickstart

You need a running Node environment with at least:

• nodejs >= 8.0.0
• yarn

Clone the repo and run:

$ yarn install
$ npm run dev
JSON-RPC (web3): Using HTTP(S) provider with endpoint: https://mainnet.infura.io/
Running a GraphQL API server at http://0.0.0.0:4000/graphql (browse here: http://localhost:4000/graphql)

This EthQL server uses Infura as a backend in anonymous mode. If you have an Infura ID (and if you don't, you should sign up for one!) you can set it like this:

$ INFURA_ID=myid npm run dev

Query Handbook

We suggest fiddling with some Example Use Cases to see some queries in action.

For an in-depth guide on how to use EthQL, please start with the document Top-Level Queries. This document shows all of the root fields available to query, including information on specific block(s), transaction(s), and account(s).

The following sections provide a deep dive into all of the fields available on top-level queries:

• Block Query Fields
• Account Query Fields
• Transaction Query Fields
• Log Query Fields
• Decoded Transaction Query Fields

Contributing

If you are interested in fixing issues and contributing directly to the code base, please see the document How to Contribute, which covers the following:

• Submitting Bugs and Suggestions
• Feedback Channels
• Coding Guidelines
• Contributor License Agreement

Please see also our Code of Conduct.

Feedback

• Request a new feature on GitHub.
• Vote for popular feature requests.
• File a bug in GitHub Issues.
• Tweet us with other feedback

Development team

• Raúl Kripalani (contact)
• Akhila Raju (contact)

Who we are

PegaSys’ mission is to build blockchain solutions ready for production in business environments. We are committed to open source, and are creating a framework for collaborative innovation for the public-chain community and leading enterprises.

Our team is composed of engineers leading in the areas of big data processing, applied cryptography, open source computing, cloud services, and blockchain development.

Learn more about PegaSys.