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fix: remove redundant error in parsing synthetic txs #2962

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merged 1 commit into from
Oct 3, 2024

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skosito
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@skosito skosito commented Oct 2, 2024

Description

If synthetic tx is not found in the block that should not be an error, it is not expected that every block contains them.

This can be logged in debug mode just in case.

How Has This Been Tested?

  • Tested CCTX in localnet
  • Tested in development environment
  • Go unit tests
  • Go integration tests
  • Tested via GitHub Actions

Summary by CodeRabbit

  • New Features

    • Improved debugging information for synthetic Ethereum transaction parsing, enhancing visibility for developers.
  • Bug Fixes

    • Simplified error handling in transaction parsing, allowing for smoother operation when no transactions are found.

@skosito skosito added the no-changelog Skip changelog CI check label Oct 2, 2024
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coderabbitai bot commented Oct 2, 2024

📝 Walkthrough

Walkthrough

The pull request introduces modifications to two files: rpc/backend/blocks.go and rpc/types/events.go. In blocks.go, a new debug log statement is added to the parseSyntheticTxFromBlockResults method to enhance visibility when synthetic Ethereum transactions are not found. In events.go, the ParseTxBlockResult function's error handling is adjusted to return nil instead of an error when no transactions are found. These changes focus on improving debugging information and simplifying error handling without altering the overall logic or control flow.

Changes

File Path Change Summary
rpc/backend/blocks.go Added a debug log statement in parseSyntheticTxFromBlockResults to log missing synthetic transactions.
rpc/types/events.go Modified error handling in ParseTxBlockResult to return nil instead of an error when no transactions are found.

Possibly related PRs

  • fix(zetaclient): add block by number result nil check #2882: This PR modifies the BlockByNumber method in the observer.go file to add error handling for nil blocks, which is related to transaction processing and could be connected to the logging improvements in the parseSyntheticTxFromBlockResults method in the main PR.

Suggested reviewers

  • fbac
  • lumtis
  • swift1337
  • kingpinXD
  • gartnera
  • ws4charlie
  • brewmaster012

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Actionable comments posted: 0

🧹 Outside diff range and nitpick comments (1)
rpc/backend/blocks.go (1)

342-344: Approve changes with minor suggestion for improvement

The addition of the debug log statement enhances the observability of the system, particularly when synthetic Ethereum transactions are not found in block messages. This change aligns well with best practices for system monitoring and debugging.

For consistency with Go's standard logging practices and to improve readability, consider using the Printf style formatting instead of concatenation:

b.logger.Debug(fmt.Sprintf("synthetic ethereum tx not found in msgs: block %d, index %d", block.Height, i))

Alternatively, if your logger supports structured logging, consider using key-value pairs:

b.logger.Debug("synthetic ethereum tx not found in msgs", "block", block.Height, "index", i)

This approach would make the log more machine-parseable and consistent with modern logging practices.

📜 Review details

Configuration used: .coderabbit.yaml
Review profile: CHILL

📥 Commits

Files that changed from the base of the PR and between f0ed61d and 1f1e23b.

📒 Files selected for processing (2)
  • rpc/backend/blocks.go (1 hunks)
  • rpc/types/events.go (1 hunks)
🧰 Additional context used
📓 Path-based instructions (2)
rpc/backend/blocks.go (1)

Pattern **/*.go: Review the Go code, point out issues relative to principles of clean code, expressiveness, and performance.

rpc/types/events.go (1)

Pattern **/*.go: Review the Go code, point out issues relative to principles of clean code, expressiveness, and performance.

🔇 Additional comments (1)
rpc/types/events.go (1)

274-275: Approve the change with a suggestion for debug logging.

The modification to return nil instead of an error when no transactions are found is appropriate and aligns with the PR objective. This change simplifies the error handling for cases where the absence of transactions is expected.

To maintain observability, consider adding a debug log statement:

 if len(txs.Txs) == 0 {
+    log.Debug("No transactions found in block result", "height", height, "txIndex", txIndex)
     return nil, nil, nil
 }

This debug log will facilitate monitoring without raising unnecessary errors.

To ensure this change doesn't introduce unintended side effects, please run the following verification script:

Please review the output to ensure that calling functions handle the nil return value appropriately.

✅ Verification successful

Verified: No issues detected with the recent changes.

The update to return nil instead of an error in ParseTxBlockResult has been thoroughly reviewed. The calling functions in rpc/backend/blocks.go correctly handle the nil values by checking both the error and the returned objects (additional and res). This ensures that the system behaves as expected without introducing any unintended side effects.

No further modifications are necessary at this time.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the impact of the change on calling functions

# Search for functions that call ParseTxBlockResult
rg --type go "ParseTxBlockResult\(" -A 10

# Look for error handling related to ParseTxBlockResult
rg --type go "err\s*:=.*ParseTxBlockResult\(" -A 5

Length of output: 1730

@lumtis lumtis added this pull request to the merge queue Oct 3, 2024
Merged via the queue into develop with commit 1ed1015 Oct 3, 2024
38 checks passed
@lumtis lumtis deleted the fix-log-level-in-rpc branch October 3, 2024 08:06
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3 participants