log/log.go (2)

59-59: Alignment with PR objectives

While the addition of SetFlags(flags int) to the ControlLogger interface 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:

1. Implementing a way for users to provide their custom logger implementation.
2. Ensuring that the custom logger can be used in place of the default logger throughout the Fiber framework.
3. 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 steps

The change to add SetFlags(flags int) to the ControlLogger interface 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:

1. Review other files in the PR to ensure the full implementation of custom logger integration.
2. If not already done, implement a mechanism for users to provide and use their custom logger implementations.
3. Update or create documentation explaining how users can implement and integrate custom loggers.
4. 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 Logger field of type fiberlog.AllLogger is a good addition that aligns with the PR objectives. It allows users to provide custom loggers that implement the AllLogger interface.

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.AllLogger

This 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 configDefault function should be updated to handle the new Logger field. 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 nil is 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.Logger and cfg.LoggerFunc if both are provided.

---

Inconsistency between Config struct and ConfigDefault initialization

The Config struct in middleware/logger/config.go does not include a Logger field, yet ConfigDefault is initializing fields like LoggerFunc and BeforeHandlerFunc. This discrepancy can lead to runtime errors or unexpected behavior. Please ensure that the Config struct is updated to include the Logger field or adjust ConfigDefault to align with the existing struct definition.

🔗 Analysis chain

Line range hint 97-108: Consider updating ConfigDefault for the new Logger field.

The ConfigDefault variable has not been updated to include a default value for the new Logger field. While this might be intentional, it's worth considering either:

1. Setting a default value (e.g., nil or a default logger instance) in ConfigDefault, or
2. Adding a comment explaining why the Logger field 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 nil logger 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 SetFlags looks good and aligns with the PR objectives by enhancing the logger's capabilities. However, there are a couple of improvements we should make:

1. As this is an exported method (part of the public API), please add a comment to document its purpose and usage.
2. 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 tests

docs/middleware/logger.md (1)

111-111: Approve addition of LoggerFunc with minor suggestion.

The new LoggerFunc property 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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Review profile: CHILL

docs/middleware/logger.md (2)

112-112: Enhance documentation for the Logger property

While the addition of the Logger property is a valuable enhancement, the documentation could be improved to provide more clarity and guidance for users. Consider the following suggestions:

1. Provide a brief explanation or a link to the documentation for the AllLogger interface.
2. Clarify the interaction between Logger and LoggerFunc when both are defined. Which one takes precedence?
3. Add an example in the "Examples" section demonstrating how to use the Logger property with a custom logger implementing the AllLogger interface.

These improvements will help users better understand and utilize the new logging capabilities.

---

Line range hint 1-112: Add examples for new logging features

The documentation has been updated to include the new LoggerFunc and Logger properties, which is great. However, to fully align with the PR objectives and provide maximum value to users, consider adding specific examples that demonstrate:

1. How to use the LoggerFunc property with a custom logging function.
2. How to implement and use a custom logger with the Logger property.

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_Logger effectively 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.

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Review profile: CHILL

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 LoggerFunc and Logger properties 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 of LoggerFunc property!

The description of the LoggerFunc property 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: See defaultLoggerInstance in default_logger.go"

---

125-125: Good addition of Logger property, addressing previous feedback!

The description of the Logger property effectively explains its purpose and relationship with the LoggerFunc. This addition aligns with the PR objectives and addresses the previous review comment requesting a description for this property.

To further improve clarity:

1. Consider adding a brief explanation of what the AllLogger interface entails.
2. Provide a short example or link to documentation about implementing the AllLogger interface.
3. Clarify the default value. Instead of "nil", consider stating "Default: None (nil)".

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Review profile: CHILL

log/default.go (1)

213-215: LGTM! Consider adding a comment for clarity.

The SetFlags method 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.

🧰 Tools

🪛 Markdownlint

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Line range hint 1-210: Suggestions for improved organization and readability

The updated documentation provides valuable information and examples for users. To further enhance its readability and organization, consider the following suggestions:

1. Move the new custom logger example (lines 92-117) to the "Examples" section, grouping it with other usage examples.
2. Add a subsection header for "Custom Logger Integration" before the new example to clearly separate it from other examples.
3. Update the table of contents (if present) to reflect the new additions.
4. 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.

🧰 Tools

🪛 Markdownlint

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Review profile: CHILL

docs/middleware/logger.md (2)

92-111: Enhance the example documentation for LoggerToWriter

The LoggerToWriter implementation looks good, but the example could be more comprehensive to better demonstrate its usage.

Consider expanding the example to show:

1. Using a custom logger implementation
2. Different log levels
3. Error handling

// Example with custom logger and different log levels
customLogger := myapp.NewLogger()  // Your custom logger implementing fiberlog.AllLogger

app.Use(logger.New(logger.Config{
    // Debug level for successful requests
    Output: LoggerToWriter(customLogger, fiberlog.LevelDebug),
}))

// Or use error level for failed requests
app.Use(logger.New(logger.Config{
    Output: LoggerToWriter(customLogger, fiberlog.LevelError),
    Next: func(c fiber.Ctx) bool {
        // Only log failed requests
        return c.Response().StatusCode() < 400
    },
}))

🧰 Tools

🪛 Markdownlint (0.35.0)

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94-106: Replace hard tabs with spaces

For consistency in markdown files, replace hard tabs with spaces.

Use spaces instead of tabs in the code block. Most markdown editors use 2 or 4 spaces for indentation.

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🪛 Markdownlint (0.35.0)

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middleware/logger/logger_test.go (1)

198-222: Consider adding more test cases for different log levels

The current test only verifies error logging. Consider adding test cases for:

• Info level logging for successful requests
• Warning level logging for 4xx responses
• Debug level logging with detailed request/response info

Example test case:

func Test_Logger_Fiber_Logger_Info(t *testing.T) {
    t.Parallel()
    app := fiber.New()
    
    buf := bytebufferpool.Get()
    defer bytebufferpool.Put(buf)
    
    logger := fiberlog.DefaultLogger()
    logger.SetFlags(0)
    logger.SetOutput(buf)
    app.Use(New(Config{
        Format: "${status} ${method} ${path}",
        Output: LoggerToWriter(logger),
    }))
    
    app.Get("/", func(_ fiber.Ctx) error {
        return c.SendString("success")
    })
    
    resp, err := app.Test(httptest.NewRequest(fiber.MethodGet, "/", nil))
    require.NoError(t, err)
    require.Equal(t, fiber.StatusOK, resp.StatusCode)
    require.Equal(t, "[Info] 200 GET /\n", buf.String())
}

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| Logger | `fiberlog.AllLogger` | Custom logger instance that implements the Fiber logger interface. Used in conjunction with LoggerFunc for advanced logging capabilities. | `nil` |

func LoggerToWriter(customLogger fiberlog.AllLogger) io.Writer {
+    if customLogger == nil {
+        return nil
+    }
     return &dumbLogger{logger: customLogger}
}