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subsquid / squid-sdk Public

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feat(evm): RPC-backed data source + fallback data source#510

Merged

abernatskiy merged 52 commits into

mastersubsquid/squid-sdk:masterfrom

feat/rpc-fallbacksubsquid/squid-sdk:feat/rpc-fallbackCopy head branch name to clipboard

Jul 8, 2026

Conversation Commits52 (52)Checks Files changed

Merged

feat(evm): RPC-backed data source + fallback data source#510
abernatskiy merged 52 commits into
masterfrom
feat/rpc-fallback

Commits

Commits on Jul 8, 2026

Add evm-rpc-stream package with ported filter engine

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Add evm-rpc-stream decode pipeline (Portal decoder reuse)

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Add RPC DataSource with verified Portal parity

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Always fetch full transactions; document trace parity gap

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Add evm-fallback-stream FallbackDataSource core

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Export RPC DataSource from evm-rpc-stream index

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Add EVM fallback glue + live end-to-end test

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Add freshness (lag/staleness) failover to the fallback source

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Expose a metrics snapshot on the fallback source

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Add a Prometheus metrics sink for the fallback source

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Add per-network presets + evmRpcStream builder; close traces parity

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Prepare evm-rpc/normalization + new packages for npm publish

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Project RPC source output back to exactly the field selection

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fix(evm-fallback): address PR #510 review

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fix(evm-fallback): second-round PR #510 review nits

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fix(evm-fallback): third-round PR #510 review

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chore: align internal deps with master + regenerate lockfile

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fix(evm-fallback): build optional peers as devDependencies

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fix(evm-fallback): fourth-round PR #510 review

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feat(evm-rpc-stream): honor includeAllBlocks (drop empty blocks like the Portal)

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fix(evm-fallback): sixth-round PR #510 review

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docs+test(evm-rpc-stream): clarify trace.type / stateDiff.kind are decoder-forced

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fix(evm-rpc-stream): stream per request range, skipping gaps (Portal parity)

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fix(evm-fallback): reset freshness state on switch + re-arm lag per stream

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feat(evm-fallback): generic capability probe anchored to the indexing frontier

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fix(evm-fallback): a probed source must re-prove capability to recover

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feat(evm-fallback): surface why a source was marked unhealthy in logs + metrics

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refactor(evm-fallback): log via a static @subsquid/logger, not an injected one

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fix(evm-fallback): classify head-delegation failures as liveness, not stream

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refactor(evm-fallback): drop churnOnGlobalStall; always hold + keep probing

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docs(evm-fallback): document optional peers + skipLibCheck expectation

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Clear freshness gauges during an all-down gap (PR #510 review)

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Arm the lag trigger only at/near the tip, never on a negative lag (PR #510 review)

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Remove dangling CHAIN_SPECIFIC.md doc pointers (PR #510 review)

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Fix spelling: isDescendent → isDescendant (PR #510 review)

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Self-review fixes: head-poll timeout, active capability, robust projection

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Add @subsquid/squid-sdk umbrella package with subpath exports

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Reorganize @subsquid/squid-sdk subpaths; extract fallback core; optional EVM peers

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Fix root JSDoc subpath examples to match the hierarchical exports

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Move the @subsquid/squid-sdk package from sdk/ to meta/

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Restore actionable error when optional RPC peers are missing

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Stop labeling capability-probe failures as `stale`

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Rename fallback supervisor logger namespace to sqd:fallback

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Drop the starknet subpath from @subsquid/squid-sdk (0.0.2)

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Stop tracking .npmrc (local publish auth)

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Apply thermo-nuclear review findings 1-7 to @subsquid/squid-sdk

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Redact URL fragments and ws:// endpoints in fallback diagnostics (Copilot #510)

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Harden capability probe against a synchronously-throwing custom probe (Copilot #510)

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delegateHead: record a liveness pass on success; clarify parentHash doc (Copilot #510)

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Reuse the canonical MetricsSink type instead of a local duplicate (Copilot #510)

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Rename the guard test's `exports` binding to avoid the CJS wrapper collision (Copilot #510)

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chore: regenerate rush lockfile after rebase onto master

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