substreams-sink

Handling chain reorganizations in Substreams requires implementing undo logic to correctly rewind and revert persisted data when reorgs occur. This skill provides production-mode patterns for detecting reorgs and executing safe data rollbacks across multiple languages.

Persisting Substreams cursors requires storing stream progress durably so sinks can resume without data loss after interruptions. This skill covers cursor management techniques to save and reload stream positions reliably in production environments.

Building Substreams sinks is supported across Go, JavaScript, Python, and Rust. This skill provides implementation references and production-mode streaming patterns tailored to each of these four languages using their official SDKs.

Implementing atomic writes and error retries for Substreams sinks involves applying production-mode patterns that ensure all-or-nothing database commits and resilient reconnection strategies. This skill details these best practices for robust data persistence.

Deploying a multi-network Substreams sink requires the official Substreams SDKs and standard language tooling. This skill leverages those dependencies to implement atomic writes, undo logic, and resilient reconnection strategies across networks.