Developer preview

Substreams is a powerful blockchain indexing technology, developed for The Graph Network.

Substreams enables developers to write Rust modules, composing data streams alongside the community, and provides extremely high performance indexing by virtue of parallelization, in a streaming-first fashion.

Substreams has all the benefits of StreamingFast Firehose, like low-cost caching and archiving of blockchain data, high throughput processing, and cursor-based reorgs handling.

Full documentation for installing, running and working with Substreams is available at: https://substreams.streamingfast.io.

Please first refer to the general StreamingFast contribution guide, if you wish to contribute to this code base.

Apache 2.0