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- Extracted request body reading logic into dedicated `readRequestBody()` method - Handles both cases with and without GetBody function - Implements seekable buffer for request body reuse - Updated `Decode()` method to use new body reading approach - Reorganized test cases in dto_test.go to clearly separate: - Tests with GetBody functionality - Tests without GetBody functionality - Error scenarios for both cases - Added helper functions for seekable buffer implementation
WalkthroughThe changes introduce a refactor to centralize and standardize HTTP request body reading and re-reading logic within the Changes
Sequence Diagram(s)sequenceDiagram
participant Client
participant RequestContext
participant HTTPRequest
participant Validator
Client->>RequestContext: DecodeAndValidateRequest()
RequestContext->>HTTPRequest: Check/GetBody
alt GetBody is nil
RequestContext->>HTTPRequest: Read Body
RequestContext->>HTTPRequest: Replace Body with seekableBuffer
RequestContext->>HTTPRequest: Set GetBody factory
else GetBody is present
RequestContext->>HTTPRequest: Use GetBody to obtain fresh body
end
RequestContext->>Validator: Validate(decoded body)
Validator-->>RequestContext: Validation result
RequestContext-->>Client: Return result or error
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Actionable comments posted: 0
🧹 Nitpick comments (1)
validation.go (1)
158-171: Consider memory implications for large request bodies.The implementation caches the entire request body in memory to enable multiple reads. While this is necessary for the functionality, it could be problematic for very large request bodies. Consider documenting this behavior or adding size limits if appropriate for your use case.
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Review profile: CHILL
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📒 Files selected for processing (3)
dto_test.go(3 hunks)http.go(1 hunks)validation.go(3 hunks)
🧰 Additional context used
🧬 Code Graph Analysis (2)
dto_test.go (4)
context.go (1)
Context(17-30)internal/mocks/DTOValidator.go (2)
NewMockDTOValidator(76-86)MockDTOValidator(11-16)internal/mocks/DTORequest.go (2)
MockDTORequest(8-11)NewMockDTORequest(81-91)dto.go (1)
DecodeAndValidateRequest(90-140)
validation.go (1)
context.go (2)
RequestContext(11-13)Context(17-30)
🔇 Additional comments (7)
http.go (1)
29-33: LGTM! Improved consistency with centralized body reading.The explicit call to
readRequestBody()before binding ensures the request body is properly cached and available for potential re-reading. This aligns well with the refactored approach invalidation.goand maintains proper error handling.validation.go (3)
154-191: Excellent refactor that centralizes request body handling logic.The
readRequestBody()method elegantly handles both scenarios:
- When
GetBodyis nil: reads the body, creates a seekable buffer, and sets up the factory function- When
GetBodyexists: uses it to obtain a fresh copyThis approach ensures the request body can be read multiple times, which is essential for both decoding and validation phases.
199-220: Well-designed helper functions for seekable buffer implementation.The helper functions provide a clean abstraction:
newSeekableBuffercreates a seekableReadCloserfrom byte contentseekableBufferembedsbytes.Readerwith a no-opClose()methodgetBodyFactoryreturns a closure for creating fresh buffer instancesThis design allows the request body to be read multiple times while maintaining the
io.ReadCloserinterface contract.
89-95: Code duplication successfully eliminated.The refactor removes duplicated body reading logic from both
ValidateandValidateRequestmethods, replacing it with a single call toreadRequestBody(). The updatedzjson.Decodecall using the dereferenced buffer is correct.Also applies to: 135-140
dto_test.go (3)
270-270: Good test naming convention for clarity.Renaming the existing tests to include "AndGetBody" clearly indicates they test scenarios where the request has a
GetBodyfunction defined. This improves test clarity and makes the test suite organization more explicit.Also applies to: 351-351
312-349: Comprehensive test coverage for NoGetBody scenario.The new test
TestDecodeAndValidateRequest_WithValidatorNoGetBodyprovides essential coverage for the scenario where the request lacks aGetBodyfunction. This validates that the newreadRequestBody()method correctly handles this case by creating a seekable buffer and setting up the factory function.The test structure mirrors the existing GetBody test, ensuring consistent validation of the same business logic under different request conditions.
406-456: Complete error case coverage for NoGetBody scenario.The error test for the NoGetBody scenario ensures that validation failures are handled correctly regardless of whether the request originally had a
GetBodyfunction. This provides confidence that the refactored body reading logic maintains consistent error handling behavior.
1 participant
readRequestBody()methodDecode()method to use new body reading approachSummary by CodeRabbit