🔥 Feature: Add AllLogger to Config #3153
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WalkthroughThe changes in this pull request primarily enhance the Logger middleware in the Fiber framework by introducing new configuration options and methods. Key modifications include the addition of the Changes
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## main #3153 +/- ##
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- Coverage 82.38% 82.11% -0.28%
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Files 113 113
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+ Hits 6975 9037 +2062
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Actionable comments posted: 5
🧹 Outside diff range and nitpick comments (7)
log/log.go (2)
59-59: Alignment with PR objectivesWhile the addition of
SetFlags(flags int)to theControlLoggerinterface enhances logger configurability, it doesn't fully address the PR objectives of allowing users to integrate a custom logger adhering to the Fiber logger interface.To better align with the PR objectives, consider:
- Implementing a way for users to provide their custom logger implementation.
- Ensuring that the custom logger can be used in place of the default logger throughout the Fiber framework.
- Providing clear documentation on how users can implement and integrate their custom loggers.
Would you like assistance in drafting a more comprehensive change that fully addresses the PR objectives?
Line range hint
1-114: Overall file review and next stepsThe change to add
SetFlags(flags int)to theControlLoggerinterface is a step in the right direction for enhancing logger configurability. However, this file alone doesn't fully address the PR objectives of allowing users to integrate custom loggers adhering to the Fiber logger interface.Suggestions for next steps:
- Review other files in the PR to ensure the full implementation of custom logger integration.
- If not already done, implement a mechanism for users to provide and use their custom logger implementations.
- Update or create documentation explaining how users can implement and integrate custom loggers.
- Consider adding examples demonstrating the usage of custom loggers, as mentioned in the PR objectives.
If you'd like assistance in implementing any of these suggestions or reviewing other parts of the PR, please let me know.
middleware/logger/config.go (3)
47-48: Approve new Logger field, but suggest adding a comment.The new
Loggerfield of typefiberlog.AllLoggeris a good addition that aligns with the PR objectives. It allows users to provide custom loggers that implement theAllLoggerinterface.However, to improve clarity for users, consider adding a comment explaining the usage of this field, similar to other fields in the struct. For example:
// Logger allows the use of a custom logger that implements the AllLogger interface. // If not set, the default Fiber logger will be used. // // Optional. Default: nil Logger fiberlog.AllLoggerThis comment would provide clear guidance on the field's purpose and default behavior.
Line range hint
111-153: Update configDefault function to handle the new Logger field.The
configDefaultfunction should be updated to handle the newLoggerfield. This ensures consistent initialization of all configuration fields. Consider adding the following logic:if cfg.Logger == nil { cfg.Logger = ConfigDefault.Logger }This addition will maintain consistency with how other fields are handled in the function. If
nilis the intended default, you might want to add a comment explaining this behavior.Additionally, consider if any logic is needed to ensure compatibility between
cfg.Loggerandcfg.LoggerFuncif both are provided.
Inconsistency between Config struct and ConfigDefault initialization
The
Configstruct inmiddleware/logger/config.godoes not include aLoggerfield, yetConfigDefaultis initializing fields likeLoggerFuncandBeforeHandlerFunc. This discrepancy can lead to runtime errors or unexpected behavior. Please ensure that theConfigstruct is updated to include theLoggerfield or adjustConfigDefaultto align with the existing struct definition.🔗 Analysis chain
Line range hint
97-108: Consider updating ConfigDefault for the new Logger field.The
ConfigDefaultvariable has not been updated to include a default value for the newLoggerfield. While this might be intentional, it's worth considering either:
- Setting a default value (e.g.,
nilor a default logger instance) inConfigDefault, or- Adding a comment explaining why the
Loggerfield is intentionally left unset in the default configuration.This will help maintain consistency and clarity in the configuration setup. Additionally, ensure that the rest of the codebase handles a
nillogger gracefully if that's the intended default behavior.To verify the current usage and handling of the logger, you can run:
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Search for usage of the Logger field and default logger handling rg --type go -e 'cfg\.Logger' -e 'defaultLogger' middleware/Length of output: 3205
Script:
#!/bin/bash # Retrieve the definition of the Config struct in middleware/logger/config.go cat middleware/logger/config.go | grep -A 10 'type Config struct' # Search for any instances where ConfigDefault is initialized or modified rg --type go 'ConfigDefault' middleware/Length of output: 13958
log/default.go (1)
213-215: LGTM! Consider adding documentation and tests.The implementation of
SetFlagslooks good and aligns with the PR objectives by enhancing the logger's capabilities. However, there are a couple of improvements we should make:
- As this is an exported method (part of the public API), please add a comment to document its purpose and usage.
- The static analysis indicates that this new method is not covered by tests. Let's add unit tests to ensure its functionality.
Would you like assistance in generating the documentation comment or unit tests for this new method?
🧰 Tools
🪛 GitHub Check: codecov/patch
[warning] 213-214: log/default.go#L213-L214
Added lines #L213 - L214 were not covered by testsdocs/middleware/logger.md (1)
111-111: Approve addition ofLoggerFuncwith minor suggestion.The new
LoggerFuncproperty is a great addition that aligns with the PR objectives, allowing users to integrate custom logging functions. This enhances the flexibility of the logger middleware as requested in issue #2737.Consider this minor grammatical improvement:
- If you don't define anything for this field, it'll use default logger of Fiber. + If you don't define anything for this field, it'll use the default logger of Fiber.🧰 Tools
🪛 LanguageTool
[uncategorized] ~111-~111: Possible missing article found.
Context: ...fine anything for this field, it'll use default logger of Fiber. | `see default_logger...(AI_HYDRA_LEO_MISSING_THE)
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📒 Files selected for processing (5)
- docs/middleware/logger.md (1 hunks)
- log/default.go (1 hunks)
- log/log.go (1 hunks)
- middleware/logger/config.go (2 hunks)
- middleware/logger/logger_test.go (3 hunks)
🧰 Additional context used
🪛 LanguageTool
docs/middleware/logger.md
[uncategorized] ~111-~111: Possible missing article found.
Context: ...fine anything for this field, it'll use default logger of Fiber. | `see default_logger...(AI_HYDRA_LEO_MISSING_THE)
🪛 GitHub Check: codecov/patch
log/default.go
[warning] 213-214: log/default.go#L213-L214
Added lines #L213 - L214 were not covered by tests
🪛 GitHub Check: lint
middleware/logger/logger_test.go
[failure] 193-193:
unused-parameter: parameter 'c' seems to be unused, consider removing or renaming it as _ (revive)
[failure] 913-913:
type assertion must be checked (forcetypeassert)
🔇 Additional comments (5)
middleware/logger/config.go (2)
9-9: LGTM: New import for fiberlog.The new import for
fiberlogis correctly added and aliased. This import is necessary for the newLoggerfield in theConfigstruct.
Line range hint
1-153: Summary: Good progress on logger enhancement, consider broader implementation.The changes in this file are a good start towards enhancing the logger middleware as per the PR objectives. The addition of the
Loggerfield in theConfigstruct allows for custom logger integration.To ensure a complete implementation:
- Verify that other files in the middleware package use this new
Loggerfield appropriately.- Update any documentation or examples to reflect this new capability.
- Consider adding unit tests to verify the behavior with both default and custom loggers.
To check for potential usage and necessary updates in other files:
#!/bin/bash # Search for files that might need updates due to the new Logger field rg --type go -e 'type Config struct' -e 'func New\(' middleware/This will help identify other locations where the
Configstruct is used or where the middleware is initialized, which might need updates to accommodate the newLoggerfield.log/default.go (1)
213-215: Verify full implementation of PR objectivesThe addition of the
SetFlagsmethod is a good enhancement to the logger's capabilities. However, the PR objectives mention using the Logger interface instead offmt.Sprintf(). Could you clarify how this change relates to that objective? Are there additional changes in other files that implement this shift to using the Logger interface?To help verify the full implementation, you can run the following script:
This will help us understand if the Logger interface is being used as intended and if there are any remaining instances of
fmt.Sprintf()in logging contexts.✅ Verification successful
PR objectives verified: Logger interface correctly replaces fmt.Sprintf in logging contexts
All instances of
fmt.Sprintfwithin logging functions have been successfully replaced with the Logger interface. No remainingfmt.Sprintfusages were found in logging contexts.🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Check for Logger interface usage and fmt.Sprintf removal # Search for Logger interface usage echo "Searching for Logger interface usage:" rg --type go "Logger\s+interface" # Search for remaining fmt.Sprintf usage in logging context echo "Searching for remaining fmt.Sprintf usage in logging context:" rg --type go "fmt\.Sprintf.*log"Length of output: 524
Script:
#!/bin/bash # Description: Comprehensive search for fmt.Sprintf usage in the codebase # Search for all fmt.Sprintf usages echo "Searching for all fmt.Sprintf usages:" rg --type go "fmt\.Sprintf" # Additionally, search for fmt.Sprintf within common logging function calls echo "Searching for fmt.Sprintf within logging functions:" rg --type go "fmt\.Sprintf\s*\(.*\)\s*log\."Length of output: 7200
🧰 Tools
🪛 GitHub Check: codecov/patch
[warning] 213-214: log/default.go#L213-L214
Added lines #L213 - L214 were not covered by testsmiddleware/logger/logger_test.go (2)
18-18: Import statement for 'fiberlog' package is correctly addedThe import of
fiberlogpackage is necessary for integrating the Fiber logger. The import statement is properly added.
907-931: Benchmark 'DefaultFormatWithFiberLog' is correctly implementedThe new benchmark case
DefaultFormatWithFiberLogis properly added toBenchmark_Logger_Parallel. It effectively benchmarks the logger middleware using the Fiber logger in a parallel context, which is consistent with the existing benchmarking structure.🧰 Tools
🪛 GitHub Check: lint
[failure] 913-913:
type assertion must be checked (forcetypeassert)
| @@ -56,6 +56,7 @@ type CommonLogger interface { | |||
| type ControlLogger interface { | |||
| SetLevel(level Level) | |||
| SetOutput(w io.Writer) | |||
| SetFlags(flags int) | |||
There was a problem hiding this comment.
💡 Codebase verification
Documentation Missing for SetFlags Method
The SetFlags(flags int) method in the ControlLogger interface lacks documentation. Providing comments or godoc annotations for this method is essential to clarify its purpose and usage, ensuring that other developers can effectively utilize and maintain this functionality.
- Add documentation comments for the
SetFlagsmethod inlog/log.go.
🔗 Analysis chain
New method added to ControlLogger interface
The addition of SetFlags(flags int) to the ControlLogger interface enhances the configurability of loggers implementing this interface. This change allows for more fine-grained control over the logging output format.
However, there are a few points to consider:
- The PR objectives mention introducing a new field for the middleware/logger, but this change only adds a method to an existing interface. It's not clear if this fully addresses the stated objectives.
- The
flagsparameter type (int) suggests this might be using predefined constants for different flag options. It would be helpful to have documentation or constants defined for the possible flag values.
To ensure this change is consistent with the rest of the codebase and meets the PR objectives, let's run the following checks:
Further Verification Needed for SetFlags Documentation
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Verify the implementation and usage of SetFlags method
# Check if there are any existing usages of SetFlags in the codebase
echo "Checking for existing SetFlags usages:"
rg --type go "SetFlags\(" -C 3
# Check if there are any flag constants defined in the codebase
echo "Checking for flag constants:"
rg --type go "const.*Flag" -C 3
# Check if there's any documentation for the SetFlags method
echo "Checking for SetFlags documentation:"
rg --type go "SetFlags.*godoc" -C 3
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#!/bin/bash
# Description: Check for comments above the SetFlags method in log/log.go
# Extract lines around the SetFlags method to find any associated comments
rg --type go -A 5 -B 2 "SetFlags\(flags int\)" log/log.go
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docs/middleware/logger.md
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| @@ -108,6 +108,8 @@ Writing to os.File is goroutine-safe, but if you are using a custom Output that | |||
| | TimeZone | `string` | TimeZone can be specified, such as "UTC" and "America/New_York" and "Asia/Chongqing", etc | `"Local"` | | |||
| | TimeInterval | `time.Duration` | TimeInterval is the delay before the timestamp is updated. | `500 * time.Millisecond` | | |||
| | Output | `io.Writer` | Output is a writer where logs are written. | `os.Stdout` | | |||
| | LoggerFunc | `func(c fiber.Ctx, data *Data, cfg Config) error` | You can use custom loggers with Fiber by using this field. This field is really useful if you're using Zerolog, Zap, Logrus, apex/log etc. If you don't define anything for this field, it'll use default logger of Fiber. | `see default_logger.go defaultLoggerInstance` | | |||
| | Logger | `fiberlog.AllLogger` | | | | |||
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Add description for the Logger property.
The new Logger property of type fiberlog.AllLogger has been added, which aligns with the PR objectives to enhance logging capabilities. However, the description for this property is missing, which may lead to confusion for users.
Please add a description for the Logger property that explains:
- The purpose of this property
- How it differs from or complements the
LoggerFuncproperty - A brief explanation of what
fiberlog.AllLoggeris and how to use it
Additionally, consider adding an example in the "Examples" section that demonstrates how to use this new Logger property.
middleware/logger/logger_test.go
Outdated
| customLoggerFunc := func(c fiber.Ctx, data *Data, cfg Config) error { | ||
| cfg.Logger.SetOutput(cfg.Output) | ||
| cfg.Logger.SetFlags(0) | ||
| cfg.Logger.Error(data.ChainErr.Error()) |
There was a problem hiding this comment.
Potential nil pointer dereference when accessing 'data.ChainErr.Error()'
At line 196, calling data.ChainErr.Error() without checking if data.ChainErr is nil could lead to a panic if ChainErr is nil. To prevent this, add a nil check before calling Error().
Apply this diff to safely handle a nil data.ChainErr:
cfg.Logger.SetFlags(0)
-if data.ChainErr != nil {
- cfg.Logger.Error(data.ChainErr.Error())
-}
+if data.ChainErr != nil {
+ cfg.Logger.Error(data.ChainErr.Error())
+} else {
+ cfg.Logger.Error("No chain error occurred")
+}
return nilThis ensures that the logger handles cases where ChainErr might be nil.
Committable suggestion was skipped due to low confidence.
|
@haochunchang thx for the PR, we will have a look can you check the pre hints from our review ai |
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Actionable comments posted: 0
🧹 Outside diff range and nitpick comments (5)
docs/middleware/logger.md (2)
112-112: Enhance documentation for theLoggerpropertyWhile the addition of the
Loggerproperty is a valuable enhancement, the documentation could be improved to provide more clarity and guidance for users. Consider the following suggestions:
- Provide a brief explanation or a link to the documentation for the
AllLoggerinterface.- Clarify the interaction between
LoggerandLoggerFuncwhen both are defined. Which one takes precedence?- Add an example in the "Examples" section demonstrating how to use the
Loggerproperty with a custom logger implementing theAllLoggerinterface.These improvements will help users better understand and utilize the new logging capabilities.
Line range hint
1-112: Add examples for new logging featuresThe documentation has been updated to include the new
LoggerFuncandLoggerproperties, which is great. However, to fully align with the PR objectives and provide maximum value to users, consider adding specific examples that demonstrate:
- How to use the
LoggerFuncproperty with a custom logging function.- How to implement and use a custom logger with the
Loggerproperty.These examples would help users understand how to leverage the new logging capabilities in their Fiber applications.
🧰 Tools
🪛 LanguageTool
[style] ~108-~108: In American English, abbreviations like “etc.” require a period.
Context: ...America/New_York" and "Asia/Chongqing", etc ...(ETC_PERIOD)
middleware/logger/logger_test.go (3)
185-214: LGTM! Consider adding more test cases.The new test function
Test_Logger_Fiber_Loggereffectively verifies the integration of Fiber's default logger with the middleware. It correctly sets up a custom logger function and checks if error messages are captured and formatted as expected.To enhance test coverage, consider adding more test cases that verify different logging scenarios, such as successful requests or requests with different status codes.
764-784: LGTM! Consider parameterizing the benchmark.The new benchmark case "DefaultFormatWithFiberLog" effectively measures the performance of the logger middleware when using Fiber's default logger. It's well-integrated with the existing benchmark structure.
To make the benchmark more flexible and reusable, consider parameterizing the log format string. This would allow testing different log formats without duplicating the benchmark code.
929-949: LGTM! Consider adding a comparison comment.The new parallel benchmark case "DefaultFormatWithFiberLog" effectively measures the concurrent performance of the logger middleware when using Fiber's default logger. It's well-integrated with the existing parallel benchmark structure.
Consider adding a comment comparing this benchmark with its non-parallel counterpart. This would help developers understand the performance implications of using the Fiber logger in concurrent scenarios.
📜 Review details
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📒 Files selected for processing (3)
- docs/middleware/logger.md (1 hunks)
- middleware/logger/config.go (2 hunks)
- middleware/logger/logger_test.go (4 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
- middleware/logger/config.go
🔇 Additional comments (2)
docs/middleware/logger.md (1)
111-111: LGTM: NewLoggerFuncproperty well-documentedThe addition of the
LoggerFuncproperty to the Config table is well-documented and aligns with the PR objectives. It provides users with the flexibility to integrate custom logging functions, which is a valuable enhancement to the logger middleware.middleware/logger/logger_test.go (1)
Line range hint
1-1090: Great addition of Fiber logger integration tests and benchmarks!The new test function and benchmark cases effectively cover the integration of Fiber's default logger with the middleware. They are well-structured, consistent with the existing code, and address the PR objective of utilizing the Logger interface.
These additions will help ensure the reliability and performance of the new logging functionality. Great job on maintaining code quality and test coverage!
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Actionable comments posted: 0
🧹 Outside diff range and nitpick comments (3)
docs/middleware/logger.md (3)
91-103: Great addition of custom logger example!The new example effectively demonstrates how to use a custom logger with the Fiber Logger Interface, which aligns well with the PR objectives. It clearly shows the usage of both
LoggerFuncandLoggerproperties in the config.To further improve clarity, consider adding a brief comment explaining the purpose of
fiberlog.DefaultLogger()in line 101.
124-124: Excellent addition ofLoggerFuncproperty!The description of the
LoggerFuncproperty is comprehensive and clearly explains its purpose and compatibility with various logging libraries. This addition aligns well with the PR objectives of enhancing logging capabilities.To improve clarity, consider explicitly stating the default value instead of referencing
defaultLoggerInstance. For example:
"Default: SeedefaultLoggerInstancein default_logger.go"
125-125: Good addition ofLoggerproperty, addressing previous feedback!The description of the
Loggerproperty effectively explains its purpose and relationship with theLoggerFunc. This addition aligns with the PR objectives and addresses the previous review comment requesting a description for this property.To further improve clarity:
- Consider adding a brief explanation of what the
AllLoggerinterface entails.- Provide a short example or link to documentation about implementing the
AllLoggerinterface.- Clarify the default value. Instead of "nil", consider stating "Default: None (nil)".
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📒 Files selected for processing (1)
- docs/middleware/logger.md (2 hunks)
🔇 Additional comments (1)
docs/middleware/logger.md (1)
Line range hint
91-125: Overall excellent documentation updates!The changes to the Logger middleware documentation effectively communicate the new logging capabilities introduced in this PR. The additions align well with the objectives of enhancing logging flexibility and supporting custom loggers.
The new example and property descriptions provide clear guidance for users on how to leverage these new features. The minor suggestions provided in the individual comments will further improve clarity and completeness.
Great job on these documentation updates!
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Hi, I have addressed a few comments from the coderabbitai. |
|
Thx will do it tomorrow |
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@haochunchang
thank you for the effort, have not made any comments
middleware/logger/logger_test.go
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||
| app.Use(New(Config{ | ||
| Output: buf, | ||
| Logger: fiberlog.DefaultLogger(), |
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please add a second test where you inject another logger and show that it receives the data
middleware/logger/config.go
Outdated
| // If you don't define LoggerFunc, it'll use default logger of Fiber without using this field. | ||
| // | ||
| // Optional. Default: nil | ||
| Logger fiberlog.AllLogger |
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where is this used in the middleware code ?
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@haochunchang @efectn
I think I understand, instead of the buffer in the default logger function another logger is used
three remarks
- would not add logger to the config if it is only used in the custom variant of the consumer, then it can also use the logger instance from outside, because the logger is not relevant for the existing default logging code
- if we get the logger instance, we should also use it in the default code, regardless of whether the custom logger function is set or not
- what is the difference between the logger and the output property? both define the target
maybe you can use output for this?
what do you think about this?
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I agree that we should also use the logger instance in the default code.
But I haven’t figured out how to use the methods of the AllLogger interface to achieve the same functionality of the original default logger. Especially in the part:
fiber/middleware/logger/default_logger.go
Lines 109 to 120 in c86c3c0
docs/middleware/logger.md
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| @@ -108,6 +121,8 @@ Writing to os.File is goroutine-safe, but if you are using a custom Output that | |||
| | TimeZone | `string` | TimeZone can be specified, such as "UTC" and "America/New_York" and "Asia/Chongqing", etc | `"Local"` | | |||
| | TimeInterval | `time.Duration` | TimeInterval is the delay before the timestamp is updated. | `500 * time.Millisecond` | | |||
| | Output | `io.Writer` | Output is a writer where logs are written. | `os.Stdout` | | |||
| | LoggerFunc | `func(c fiber.Ctx, data *Data, cfg Config) error` | You can use custom loggers with Fiber by using this field. This field is really useful if you're using Zerolog, Zap, Logrus, apex/log etc. If you don't define anything for this field, it'll use the default logger of Fiber. | `see default_logger.go defaultLoggerInstance` | | |||
| | Logger | `fiberlog.AllLogger` | Logger allows the use of a custom logger that implements the AllLogger interface. This field can be used in the LoggerFunc to do the logging. If you don't define LoggerFunc, this field will be ignored. | `nil` | | |||
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please add the default value of this new property to the default config
|
I think we can add a wrapper instead of messing with new config field and a function. Hereby, fiber logger interface can be used with the middleware by adjusting type dumbLogger struct {
logger log.AllLogger
level log.Level
}
func (l *dumbLogger) Write(p []byte) (n int, err error) {
switch l.level {
case log.LevelDebug:
l.logger.Debug(string(p))
case log.LevelError:
l.logger.Error(string(p))
case log.LevelFatal:
l.logger.Fatal(string(p))
case log.LevelInfo:
l.logger.Info(string(p))
case log.LevelTrace:
l.logger.Trace(string(p))
case log.LevelWarn:
l.logger.Warn(string(p))
}
return len(p), nil
}
func LoggerToWriter(logger log.AllLogger, level log.Level) io.Writer {
return &dumbLogger{
logger: logger,
level: level,
}
} |
|
Cool. Then we can use this wrapper like the following: cfg.Output = LoggerToWriter(logger, level)Is that what you mean? |
Yes it is |
🔥 Feature: Add fiberlog Logger field to config
📚 Doc: add custom Logger example
📚 Doc: add example of using fiber logger interface
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I think using the wrapper method @efectn suggested can prevent disrupting the original Config and default logger 👍 If using the wrapper method, then we only need to add an example into the documentation to provide users an example of using fiberlog interface. I also added a unit test and benchmark tests for using the wrapper method. |
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Actionable comments posted: 5
🧹 Outside diff range and nitpick comments (3)
log/default.go (1)
213-215: LGTM! Consider adding a comment for clarity.The
SetFlagsmethod is a good addition, providing more control over the logging output. It's consistent with other setter methods in the struct and aligns well with the PR objectives.Consider adding a brief comment to explain the purpose of this method and possibly link to the standard log package documentation for flag values. For example:
// SetFlags sets the output flags for the logger. // Flag values are defined in the standard log package. func (l *defaultLogger) SetFlags(flag int) { l.stdlog.SetFlags(flag) }docs/middleware/logger.md (2)
92-117: LGTM! Consider adding a brief explanation.The new example for using a custom logger with the Fiber Logger interface is well-implemented and aligns with the PR objectives. It provides a clear demonstration of how to integrate custom logging solutions.
Consider adding a brief explanation before the code block to introduce the concept of using a custom logger with the Fiber Logger interface. This will help users understand the purpose and context of the example more quickly.
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🪛 Markdownlint
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1-210: Suggestions for improved organization and readabilityThe updated documentation provides valuable information and examples for users. To further enhance its readability and organization, consider the following suggestions:
- Move the new custom logger example (lines 92-117) to the "Examples" section, grouping it with other usage examples.
- Add a subsection header for "Custom Logger Integration" before the new example to clearly separate it from other examples.
- Update the table of contents (if present) to reflect the new additions.
- Consider adding a brief introduction to the concept of custom loggers and their benefits at the beginning of the document.
These changes will help users navigate the documentation more easily and understand the new features in the context of the existing functionality.
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📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
📒 Files selected for processing (4)
- docs/middleware/logger.md (2 hunks)
- log/default.go (1 hunks)
- log/log.go (1 hunks)
- middleware/logger/logger_test.go (4 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
- log/log.go
🧰 Additional context used
🪛 Markdownlint
docs/middleware/logger.md
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138-138: Expected: 4; Actual: 5; Too many cells, extra data will be missing
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🔇 Additional comments (3)
log/default.go (1)
213-215: Summary: Good addition with minor suggestions.The addition of the
SetFlagsmethod enhances the flexibility of the logger, aligning well with the PR objectives. The implementation is clean and consistent with existing code. Consider adding a brief comment for clarity and ensure consistency with theAllLoggerinterface across the package.docs/middleware/logger.md (1)
138-138: Address previous review commentsTwo previous review comments need attention:
The suggestion to add a description for the
Loggerproperty. It seems this property might have been renamed toLoggerFuncor removed. Please clarify this change and update the documentation accordingly.The request to add the default value of the new property to the default config section. While the default value is mentioned in the table, it should also be added to the "Default Config" section for consistency.
Could you please clarify the status of the
Loggerproperty and update the "Default Config" section to include the newLoggerFuncproperty?🧰 Tools
🪛 Markdownlint
138-138: Expected: 4; Actual: 5; Too many cells, extra data will be missing
Table column count(MD056, table-column-count)
middleware/logger/logger_test.go (1)
199-223: Test 'Test_Logger_Fiber_Logger' successfully validates custom logger integrationThe new test function
Test_Logger_Fiber_Loggercorrectly injects a custom Fiber logger and verifies that it receives the log output as expected. This addresses the previous request to demonstrate that the custom logger receives the data.
| func (l *defaultLogger) SetFlags(flag int) { | ||
| l.stdlog.SetFlags(flag) | ||
| } |
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💡 Codebase verification
Add SetFlags to the AllLogger interface for consistency.
The SetFlags method in defaultLogger is not part of the AllLogger interface. To maintain interface consistency across the package, please add the SetFlags method to the AllLogger interface.
🔗 Analysis chain
Verify interface consistency across the package.
The SetFlags method is a valuable addition to the defaultLogger. However, it's important to ensure consistency across the package.
Please run the following script to check if the SetFlags method is added to the AllLogger interface:
If the SetFlags method is not part of the AllLogger interface, consider adding it to maintain consistency and allow users to set flags on any logger implementation.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Check if SetFlags method is added to the AllLogger interface
# Test: Search for the AllLogger interface definition
echo "Searching for AllLogger interface definition:"
rg --type go -A 10 "type AllLogger interface" ./log
# Test: Check if SetFlags is part of the AllLogger interface
echo "Checking if SetFlags is part of the AllLogger interface:"
rg --type go "SetFlags\(.*\)" ./log
Length of output: 905
| @@ -108,6 +135,7 @@ Writing to os.File is goroutine-safe, but if you are using a custom Output that | |||
| | TimeZone | `string` | TimeZone can be specified, such as "UTC" and "America/New_York" and "Asia/Chongqing", etc | `"Local"` | | |||
| | TimeInterval | `time.Duration` | TimeInterval is the delay before the timestamp is updated. | `500 * time.Millisecond` | | |||
| | Output | `io.Writer` | Output is a writer where logs are written. | `os.Stdout` | | |||
| | LoggerFunc | `func(c fiber.Ctx, data *Data, cfg Config) error` | You can use custom loggers with Fiber by using this field. This field is really useful if you're using Zerolog, Zap, Logrus, apex/log etc. If you don't define anything for this field, it'll use the default logger of Fiber. | `see default_logger.go defaultLoggerInstance` | | | |||
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Approve LoggerFunc addition. Fix table formatting.
The new LoggerFunc configuration option is a great addition that aligns with the PR objectives. It provides flexibility for users to integrate various logging libraries.
The table formatting needs to be adjusted to maintain consistency. Please split the description into multiple lines or consider using a list format for better readability. For example:
| LoggerFunc | `func(c fiber.Ctx, data *Data, cfg Config) error` | Custom logger function. Useful for integrating logging libraries like Zerolog, Zap, Logrus, etc. If not defined, Fiber's default logger is used. | `see default_logger.go defaultLoggerInstance` |🧰 Tools
🪛 Markdownlint
138-138: Expected: 4; Actual: 5; Too many cells, extra data will be missing
Table column count(MD056, table-column-count)
| b.Run("DefaultFormatWithFiberLog", func(bb *testing.B) { | ||
| app := fiber.New() | ||
| logger := fiberlog.DefaultLogger() | ||
| logger.SetOutput(io.Discard) | ||
| app.Use(New(Config{ | ||
| Output: LoggerToWriter(logger), | ||
| })) | ||
| app.Get("/", func(c fiber.Ctx) error { | ||
| return c.SendString("Hello, World!") | ||
| }) | ||
| benchmarkSetup(bb, app, "/") | ||
| }) | ||
|
|
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🛠️ Refactor suggestion
Refactor benchmark tests to eliminate duplicate code
The benchmark cases DefaultFormatWithFiberLog in both Benchmark_Logger (lines 772-784) and Benchmark_Logger_Parallel (lines 928-940) have identical setup code. This duplication can be avoided by refactoring the common code into a helper function, enhancing maintainability and reducing potential for errors.
You can extract the common setup code into a helper function:
func setupBenchmarkWithFiberLog() (*fiber.App, func(fiber.Ctx) error) {
app := fiber.New()
logger := fiberlog.DefaultLogger()
logger.SetOutput(io.Discard)
app.Use(New(Config{
Output: LoggerToWriter(logger),
}))
handler := func(c fiber.Ctx) error {
return c.SendString("Hello, World!")
}
return app, handler
}Then use this helper function in your benchmarks:
b.Run("DefaultFormatWithFiberLog", func(bb *testing.B) {
app, handler := setupBenchmarkWithFiberLog()
app.Get("/", handler)
benchmarkSetup(bb, app, "/")
})This approach promotes code reuse and simplifies future modifications.
Also applies to: 928-940
| func LoggerToWriter(customLogger fiberlog.AllLogger) io.Writer { | ||
| return &dumbLogger{logger: customLogger} | ||
| } |
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Validate 'customLogger' parameter in 'LoggerToWriter'
The LoggerToWriter function does not check if the customLogger parameter is nil. Passing a nil customLogger will result in a dumbLogger with a nil logger, which could cause a panic when Write is called. Add a check to ensure customLogger is not nil before creating the dumbLogger.
Apply this diff to validate the parameter:
func LoggerToWriter(customLogger fiberlog.AllLogger) io.Writer {
+ if customLogger == nil {
+ return nil
+ }
return &dumbLogger{logger: customLogger}
}Alternatively, you might want to return an error or use a default logger if customLogger is nil.
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| func LoggerToWriter(customLogger fiberlog.AllLogger) io.Writer { | |
| return &dumbLogger{logger: customLogger} | |
| } | |
| func LoggerToWriter(customLogger fiberlog.AllLogger) io.Writer { | |
| if customLogger == nil { | |
| return nil | |
| } | |
| return &dumbLogger{logger: customLogger} | |
| } |
| type dumbLogger struct { | ||
| logger fiberlog.AllLogger | ||
| } | ||
|
|
||
| func (l *dumbLogger) Write(p []byte) (n int, err error) { | ||
| l.logger.Error(string(p)) | ||
| return len(p), nil | ||
| } | ||
|
|
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Add nil check for 'l.logger' in 'dumbLogger.Write'
In the Write method of dumbLogger, if l.logger is nil, calling l.logger.Error(string(p)) will result in a nil pointer dereference, causing a runtime panic. To ensure robustness, add a check to verify that l.logger is not nil before attempting to log.
Apply this diff to add the nil check:
func (l *dumbLogger) Write(p []byte) (n int, err error) {
+ if l.logger == nil {
+ return 0, errors.New("logger is nil")
+ }
l.logger.Error(string(p))
return len(p), nil
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| type dumbLogger struct { | |
| logger fiberlog.AllLogger | |
| } | |
| func (l *dumbLogger) Write(p []byte) (n int, err error) { | |
| l.logger.Error(string(p)) | |
| return len(p), nil | |
| } | |
| type dumbLogger struct { | |
| logger fiberlog.AllLogger | |
| } | |
| func (l *dumbLogger) Write(p []byte) (n int, err error) { | |
| if l.logger == nil { | |
| return 0, errors.New("logger is nil") | |
| } | |
| l.logger.Error(string(p)) | |
| return len(p), nil | |
| } |
|
Wrapper method sounds good |
| type dumbLogger struct { | ||
| logger fiberlog.AllLogger | ||
| level log.Level | ||
| } | ||
|
|
||
| func (l *dumbLogger) Write(p []byte) (n int, err error) { | ||
| switch l.level { | ||
| case log.LevelDebug: | ||
| l.logger.Debug(string(p)) | ||
| case log.LevelError: | ||
| l.logger.Error(string(p)) | ||
| } | ||
| return len(p), nil | ||
| } | ||
|
|
||
| func LoggerToWriter(customLogger fiberlog.AllLogger, level fiberlog.Level) io.Writer { | ||
| return &dumbLogger{ | ||
| logger: customLogger, | ||
| level: level, | ||
| } | ||
| } |
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@haochunchang can we put that or a better generic wrapper in the code so that not every dev has to create this struct? or would that be too undynamic?
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maybe we should recommend something like this ?
func LoggerToWriter(customLogger fiberlog.AllLogger, level fiberlog.Level) io.Writer {
return &struct {
Write func(p []byte) (n int, err error)
}{
Write: func(p []byte) (n int, err error) {
switch level {
case fiberlog.LevelDebug:
customLogger.Debug(string(p))
case fiberlog.LevelError:
customLogger.Error(string(p))
}
return len(p), nil
},
}
}then we really don´t need extra code in the codebase
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I think we can provide the LoggerToWriter in the example to show how to use fiberlog interface in the middleware.
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ok @haochunchang pls adjust it a little bit
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I’ve tried to condensed into a single function wrapper that return io.Writer but it seems it still need to declare the Write method in order to satisfy the io.Writer interface.
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@haochunchang yeah, but in my example its there
so can you update the PR with this code snippet ?
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Do you mean adding it into the example?
Cause I failed to adopt this into the unit tests 😅
Description
This adds a new field for the middleware/logger to allow users to pass in a logger with fiber logger interface.
To use the fiber logger interface, users need to define how the logger will be used in
LoggerFunc.Otherwise, it falls back to use original
fmt.Sprintflogger instance.Fixes #2737
Changes introduced
Type of change
Checklist
Before you submit your pull request, please make sure you meet these requirements:
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