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fix(logger): improve error logging structure #2955

Merged
merged 2 commits into from
Jan 13, 2025
Merged

fix(logger): improve error logging structure #2955

merged 2 commits into from
Jan 13, 2025

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shanegrouber
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@shanegrouber shanegrouber commented Jan 13, 2025

  • Enhance logging of error properties
  • Capture name and stack for better debugging

(Your error handling was so vague, it could moonlight as a fortune cookie)

Summary by CodeRabbit

  • Bug Fixes
    • Improved error logging mechanism to capture more detailed error information.
    • Enhanced error object logging with comprehensive error properties.

- Enhance logging of error properties
- Capture name and stack for better debugging

(Your error handling was so vague, it could moonlight as a fortune cookie)
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Latest commit: 569a3b8

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coderabbitai bot commented Jan 13, 2025

Walkthrough

The pull request modifies the WinstonLogger class's error method in the Winston logger utility. The change enhances error logging by creating a more structured error object that explicitly captures key error properties like message, name, stack, and any additional properties. This approach ensures more comprehensive error logging while maintaining the existing control flow of the error handling mechanism.

Changes

File Change Summary
services/workflows-service/src/common/utils/winston-logger/winston-logger.ts Enhanced error logging by constructing a detailed errorObj with explicit error properties

Possibly related PRs

Suggested labels

Review effort [1-5]: 3, Bug fix

Suggested reviewers

  • Omri-Levy

Poem

🐰 A logger's tale of errors bright,
Structured logs now shine with might!
Properties captured, stack trace clear,
Winston's wisdom brings us cheer!
Debugging magic, rabbit's delight! 🔍


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Actionable comments posted: 1

🧹 Nitpick comments (1)
services/workflows-service/src/common/utils/winston-logger/winston-logger.ts (1)

75-80: Ensure critical error properties take precedence

The current order of property spreading could allow custom properties to override standard error properties.

Consider this order to ensure standard error properties take precedence:

       const errorObj = {
+        ...errorProperties,
         message: error.message,
         name: error.name,
         stack: error.stack,
-        ...errorProperties,
       };
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services/workflows-service/src/common/utils/winston-logger/winston-logger.ts

[error] 69-69: Avoid the use of spread (...) syntax on accumulators.

Spread syntax should be avoided on accumulators (like those in .reduce) because it causes a time complexity of O(n^2).
Consider methods such as .splice or .push instead.

(lint/performance/noAccumulatingSpread)

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🔇 Additional comments (1)
services/workflows-service/src/common/utils/winston-logger/winston-logger.ts (1)

82-82: Well-structured error logging implementation

The error logging structure clearly separates the error details from additional payload, which will improve debugging capabilities.

- Simplify error property extraction logic
- Use forEach instead of reduce for clarity and performance

(your error handling is starting to look like a messy breakup with too many exes)
@shanegrouber shanegrouber enabled auto-merge (squash) January 13, 2025 13:43
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shanegrouber commented Jan 13, 2025

By default, Error objects in JavaScript are not enumerable, so their properties (message, name, stack) are excluded when logged via JSON.stringify.

e.g.
> JSON.stringify(new Error('bad error'))
'{}'

Even with format.errors({ stack: true }) in Winston, passing an Error object directly
(e.g., { error: new Error('bad error'), payload: { test: 1 } }) will log only the other properties, dropping the Error.
This is because our logger statement encompasses the error with an additional payload abstract error(error: unknown, payload: LogPayload): void; (see medium article)

Also, found an open winston issue where error stacks get omitted when used with splat()

Solution is to manually spread the error object within the logger.

@shanegrouber shanegrouber merged commit ab68ac3 into dev Jan 13, 2025
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@shanegrouber shanegrouber deleted the BAL-3361 branch January 13, 2025 14:09
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