Implement Dummy API for Project Understanding #445
Conversation
WalkthroughThis pull request introduces a new POST Changes
Sequence Diagram(s)sequenceDiagram
participant Client
participant Handler as HelloHandler
participant Service as HelloService
participant Repo as HelloRepository
Client->>Handler: POST /hello (with JSON {nickname})
Handler->>Handler: Bind & Validate request (using HelloRequest.Validate)
Handler->>Service: Invoke HelloCodePair(visitor)
Service->>Repo: ReadHelloMessageFor(visitor)
Repo-->>Service: "Hello, <nickname>"
Service-->>Handler: return greeting message
Handler-->>Client: 200 OK with HelloResponse (message)
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kokodak,
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Actionable comments posted: 7
🧹 Nitpick comments (8)
backend-go/internal/transport/rest/converter.go (1)
8-9: Enhance function documentation.The current comment is too brief. Consider adding more details about the function's behavior, parameters, and return value.
-// ConvertErrorToResponse converts an error to a response. +// ConvertErrorToResponse converts an error to an HTTP exception response. +// It maps specific error types to appropriate HTTP responses: +// - InternalServerError -> 500 Internal Server Error +// For unhandled error types, it returns an invalid JSON error response. +// +// Parameters: +// - err: The error to convert +// +// Returns: +// - models.HttpExceptionResponse: The corresponding HTTP exception responsebackend-go/internal/transport/rest/error_responses.go (3)
8-13: Add input validation to helper function.The helper function should validate the status code and message to ensure they are appropriate.
func newHttpExceptionResponse(statusCode int32, message string) models.HttpExceptionResponse { + if statusCode < 100 || statusCode > 599 { + statusCode = http.StatusInternalServerError + } + if message == "" { + message = http.StatusText(int(statusCode)) + } return models.HttpExceptionResponse{ StatusCode: statusCode, Message: message, } }
20-23: Enhance validation error message.Consider including more context in the validation error message to help clients better understand and fix the issue.
func NewValidationErrorResponse(reason string) models.HttpExceptionResponse { - return newHttpExceptionResponse(http.StatusBadRequest, reason) + return newHttpExceptionResponse(http.StatusBadRequest, fmt.Sprintf("Validation failed: %s", reason)) }
25-28: Enhance internal server error message.Consider providing more context in the internal server error message while keeping sensitive details private.
func NewInternalServerErrorResponse() models.HttpExceptionResponse { - return newHttpExceptionResponse(http.StatusInternalServerError, "Internal Server Error") + return newHttpExceptionResponse(http.StatusInternalServerError, + "An unexpected error occurred. Please try again later or contact support if the problem persists.") }backend-go/internal/server/routes.go (2)
10-12: Consider flexible repository injection.
While the direct instantiation here is fine, you might later prefer dependency injection or mocking to facilitate testing and environment-based configuration.
19-19: Consider versioning or grouping this route.
Using a version prefix (e.g.,/api/v1/hello) or grouping related routes can help maintain backward compatibility and code organization as the project grows.backend-go/api/codepair/v1/models/model_hello_request.go (1)
3-7: Provide optional length checks for Nickname.
While the field is basic, consider applying upper-limits in validation to avoid potential issues with overly large inputs.backend-go/internal/infra/database/mongo/hello.go (1)
5-10: Consider making the greeting format configurable.The greeting message is currently hardcoded. Consider making it configurable through repository initialization.
Example implementation:
type HelloRepository struct{ + greetingFormat string } func NewHelloRepository() HelloRepository { - return HelloRepository{} + return HelloRepository{ + greetingFormat: "Hello, %s!", + } } func (h HelloRepository) ReadHelloMessageFor(codePairVisitor hello.CodePairVisitor) (string, error) { - return "Hello, " + codePairVisitor.Nickname + "!", nil + return fmt.Sprintf(h.greetingFormat, codePairVisitor.Nickname), nil }
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📒 Files selected for processing (16)
api/backend-openapi-spec.json(76 hunks)backend-go/api/codepair/v1/models/errors.go(1 hunks)backend-go/api/codepair/v1/models/model_hello_request.go(1 hunks)backend-go/api/codepair/v1/models/model_hello_response.go(1 hunks)backend-go/api/codepair/v1/models/model_http_exception_response.go(1 hunks)backend-go/api/codepair/v1/models/validators.go(1 hunks)backend-go/internal/core/hello/handler.go(1 hunks)backend-go/internal/core/hello/model.go(1 hunks)backend-go/internal/core/hello/repository.go(1 hunks)backend-go/internal/core/hello/service.go(1 hunks)backend-go/internal/infra/database/mongo/hello.go(1 hunks)backend-go/internal/server/routes.go(1 hunks)backend-go/internal/transport/rest/converter.go(1 hunks)backend-go/internal/transport/rest/error_responses.go(1 hunks)backend-go/internal/transport/rest/errors.go(1 hunks)backend-go/internal/transport/rest/handler_utils.go(1 hunks)
✅ Files skipped from review due to trivial changes (1)
- backend-go/internal/core/hello/model.go
🧰 Additional context used
🪛 golangci-lint (1.62.2)
backend-go/api/codepair/v1/models/errors.go
[warning] 9-9: redefines-builtin-id: redefinition of the built-in function min
(revive)
10-10: stringintconv: conversion from int to string yields a string of one rune, not a string of digits
(govet)
backend-go/internal/core/hello/handler.go
25-25: error returned from external package is unwrapped: sig: func github.com/yorkie-team/codepair/backend/internal/transport/rest.BindAndValidateRequest(e github.com/labstack/echo/v4.Context, req github.com/yorkie-team/codepair/backend/internal/transport/rest.request) error
(wrapcheck)
33-33: error returned from external package is unwrapped: sig: func github.com/yorkie-team/codepair/backend/internal/transport/rest.NewErrorResponse(e github.com/labstack/echo/v4.Context, err error) error
(wrapcheck)
36-36: error returned from external package is unwrapped: sig: func github.com/yorkie-team/codepair/backend/internal/transport/rest.NewOkResponse(e github.com/labstack/echo/v4.Context, resp interface{}) error
(wrapcheck)
🔇 Additional comments (9)
backend-go/internal/transport/rest/errors.go (1)
1-8: LGTM!The error variable is well-documented and follows Go's error message style guide.
backend-go/api/codepair/v1/models/model_http_exception_response.go (1)
6-6: LGTM!The change from
float32toint32is appropriate as HTTP status codes are integers.backend-go/internal/server/routes.go (3)
5-6: No issues with introducing these imports.
They seamlessly integrate the new repository and service into the layered architecture.
13-15: Service instantiation aligns with standard layering.
The creation ofhelloServicefromhelloRepositoryis straightforward and clear.
16-18: Handler setup follows best practices.
Creating a dedicated handler (helloHandler) for this service is properly structured.backend-go/api/codepair/v1/models/model_hello_response.go (1)
3-7: Response struct is succinct.
Defining a single fieldMessageis straightforward. No further changes appear necessary.backend-go/internal/core/hello/repository.go (1)
3-6: LGTM! Well-designed interface.The interface follows Go best practices with:
- Clear, single responsibility
- Descriptive method name and parameters
- Good documentation
- Proper error handling
backend-go/api/codepair/v1/models/validators.go (1)
3-13: LGTM! Well-structured validation.The validation logic follows good practices:
- Checks for required field first
- Clear minimum length validation
- Uses descriptive error messages
backend-go/internal/core/hello/handler.go (1)
21-39: LGTM! The handler implementation follows best practices.The implementation correctly:
- Binds and validates the request
- Handles errors appropriately
- Returns proper HTTP responses
🧰 Tools
🪛 golangci-lint (1.62.2)
25-25: error returned from external package is unwrapped: sig: func github.com/yorkie-team/codepair/backend/internal/transport/rest.BindAndValidateRequest(e github.com/labstack/echo/v4.Context, req github.com/yorkie-team/codepair/backend/internal/transport/rest.request) error
(wrapcheck)
33-33: error returned from external package is unwrapped: sig: func github.com/yorkie-team/codepair/backend/internal/transport/rest.NewErrorResponse(e github.com/labstack/echo/v4.Context, err error) error
(wrapcheck)
36-36: error returned from external package is unwrapped: sig: func github.com/yorkie-team/codepair/backend/internal/transport/rest.NewOkResponse(e github.com/labstack/echo/v4.Context, resp interface{}) error
(wrapcheck)
| switch { | ||
| case errors.Is(err, InternalServerError): | ||
| return NewInternalServerErrorResponse() | ||
| default: | ||
| return NewInvalidJsonErrorResponse() | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Improve error handling in the default case.
The default case returns an invalid JSON error response, which might be misleading for other types of errors. Consider adding more error cases and using a generic error response for unhandled errors.
func ConvertErrorToResponse(err error) models.HttpExceptionResponse {
switch {
case errors.Is(err, InternalServerError):
return NewInternalServerErrorResponse()
+ case errors.Is(err, &models.ValidationError{}):
+ return NewValidationErrorResponse(err.Error())
default:
- return NewInvalidJsonErrorResponse()
+ return newHttpExceptionResponse(http.StatusInternalServerError, err.Error())
}
}📝 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.
| switch { | |
| case errors.Is(err, InternalServerError): | |
| return NewInternalServerErrorResponse() | |
| default: | |
| return NewInvalidJsonErrorResponse() | |
| } | |
| func ConvertErrorToResponse(err error) models.HttpExceptionResponse { | |
| switch { | |
| case errors.Is(err, InternalServerError): | |
| return NewInternalServerErrorResponse() | |
| case errors.Is(err, &models.ValidationError{}): | |
| return NewValidationErrorResponse(err.Error()) | |
| default: | |
| return newHttpExceptionResponse(http.StatusInternalServerError, err.Error()) | |
| } | |
| } |
| func MinLengthError(field string, min int) error { | ||
| return errors.New(field + " must be at least " + string(min) + " characters") | ||
| } |
There was a problem hiding this comment.
Fix string conversion in error message.
The current implementation uses string(min) which converts the integer to a single rune character instead of a string representation of the number.
Use strconv.Itoa to properly convert the integer to a string:
+import "strconv"
func MinLengthError(field string, min int) error {
- return errors.New(field + " must be at least " + string(min) + " characters")
+ return errors.New(field + " must be at least " + strconv.Itoa(min) + " characters")
}📝 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 MinLengthError(field string, min int) error { | |
| return errors.New(field + " must be at least " + string(min) + " characters") | |
| } | |
| import "strconv" | |
| func MinLengthError(field string, min int) error { | |
| return errors.New(field + " must be at least " + strconv.Itoa(min) + " characters") | |
| } |
🧰 Tools
🪛 golangci-lint (1.62.2)
[warning] 9-9: redefines-builtin-id: redefinition of the built-in function min
(revive)
10-10: stringintconv: conversion from int to string yields a string of one rune, not a string of digits
(govet)
| func (h HelloRepository) ReadHelloMessageFor(codePairVisitor hello.CodePairVisitor) (string, error) { | ||
| return "Hello, " + codePairVisitor.Nickname + "!", nil | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Add input validation and error handling.
The current implementation could be improved with:
- Input validation to prevent nil pointer dereference
- Error handling for edge cases
Consider this safer implementation:
func (h HelloRepository) ReadHelloMessageFor(codePairVisitor hello.CodePairVisitor) (string, error) {
+ if codePairVisitor.Nickname == "" {
+ return "", errors.New("invalid visitor: nickname is required")
+ }
return "Hello, " + codePairVisitor.Nickname + "!", 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 (h HelloRepository) ReadHelloMessageFor(codePairVisitor hello.CodePairVisitor) (string, error) { | |
| return "Hello, " + codePairVisitor.Nickname + "!", nil | |
| } | |
| func (h HelloRepository) ReadHelloMessageFor(codePairVisitor hello.CodePairVisitor) (string, error) { | |
| if codePairVisitor.Nickname == "" { | |
| return "", errors.New("invalid visitor: nickname is required") | |
| } | |
| return "Hello, " + codePairVisitor.Nickname + "!", nil | |
| } |
| func (s Service) HelloCodePair(e echo.Context, codePairVisitor CodePairVisitor) (string, error) { | ||
| helloMessage, err := s.helloRepository.ReadHelloMessageFor(codePairVisitor) | ||
| if err != nil { | ||
| e.Logger().Fatal(err) |
There was a problem hiding this comment.
Replace Fatal logging with Error level logging.
Using Fatal logging here is problematic as it terminates the program. For recoverable errors, use Error level logging instead to maintain service availability.
Apply this diff:
- e.Logger().Fatal(err)
+ e.Logger().Error(err)📝 Committable suggestion
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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.
| e.Logger().Fatal(err) | |
| e.Logger().Error(err) |
| helloMessage, err := s.helloRepository.ReadHelloMessageFor(codePairVisitor) | ||
| if err != nil { | ||
| e.Logger().Fatal(err) | ||
| return "", rest.InternalServerError |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Wrap the error to preserve context.
The original error context is lost when returning a generic internal server error. Wrap the error to maintain the error chain for better debugging.
Apply this diff:
- return "", rest.InternalServerError
+ return "", fmt.Errorf("failed to read hello message: %w", err)Don't forget to add the import:
+import "fmt"📝 Committable suggestion
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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.
| return "", rest.InternalServerError | |
| package hello | |
| import ( | |
| // other existing imports | |
| "fmt" | |
| // possibly other imports | |
| ) | |
| func someFunction(...) (string, error) { | |
| // ... previous code | |
| // Updated error return to preserve context | |
| return "", fmt.Errorf("failed to read hello message: %w", err) | |
| } |
| resp := ConvertErrorToResponse(err) | ||
| return e.JSON(int(resp.StatusCode), ConvertErrorToResponse(err)) |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Remove duplicate error conversion.
ConvertErrorToResponse is called twice unnecessarily. Store the result in a variable to avoid the duplicate conversion.
Apply this diff:
- resp := ConvertErrorToResponse(err)
- return e.JSON(int(resp.StatusCode), ConvertErrorToResponse(err))
+ resp := ConvertErrorToResponse(err)
+ return e.JSON(int(resp.StatusCode), resp)📝 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.
| resp := ConvertErrorToResponse(err) | |
| return e.JSON(int(resp.StatusCode), ConvertErrorToResponse(err)) | |
| resp := ConvertErrorToResponse(err) | |
| return e.JSON(int(resp.StatusCode), resp) |
| "default": { | ||
| "description": "", | ||
| "content": { | ||
| "application/json": { | ||
| "schema": { | ||
| "$ref": "#/components/schemas/HelloResponse" | ||
| } | ||
| } | ||
| } | ||
| } | ||
| }, |
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🛠️ Refactor suggestion
Define specific response status codes instead of using default.
Using "default" response makes the API behavior less predictable. Define specific success and error status codes.
Apply this diff:
- "default": {
+ "200": {
"description": "",
"content": {
"application/json": {
"schema": {
"$ref": "#/components/schemas/HelloResponse"
}
}
}
+ },
+ "400": {
+ "description": "Invalid request parameters",
+ "content": {
+ "application/json": {
+ "schema": {
+ "$ref": "#/components/schemas/HttpExceptionResponse"
+ }
+ }
+ }
+ },
+ "500": {
+ "description": "Internal server error",
+ "content": {
+ "application/json": {
+ "schema": {
+ "$ref": "#/components/schemas/HttpExceptionResponse"
+ }
+ }
+ }
}📝 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.
| "default": { | |
| "description": "", | |
| "content": { | |
| "application/json": { | |
| "schema": { | |
| "$ref": "#/components/schemas/HelloResponse" | |
| } | |
| } | |
| } | |
| } | |
| }, | |
| "200": { | |
| "description": "", | |
| "content": { | |
| "application/json": { | |
| "schema": { | |
| "$ref": "#/components/schemas/HelloResponse" | |
| } | |
| } | |
| } | |
| }, | |
| "400": { | |
| "description": "Invalid request parameters", | |
| "content": { | |
| "application/json": { | |
| "schema": { | |
| "$ref": "#/components/schemas/HttpExceptionResponse" | |
| } | |
| } | |
| } | |
| }, | |
| "500": { | |
| "description": "Internal server error", | |
| "content": { | |
| "application/json": { | |
| "schema": { | |
| "$ref": "#/components/schemas/HttpExceptionResponse" | |
| } | |
| } | |
| } | |
| } | |
| }, |
backend-go/api/codepair/v1/models/model_http_exception_response.go
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| package models | ||
|
|
||
| type HelloRequest struct { | ||
|
|
||
| // New nickname to say hello | ||
| Nickname string `json:"nickname"` | ||
| } |
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How about writing a Request, Response, and Validator of the same model (Hello) in the same file? It seems unnecessary to write the Request and Response in different files.
Maybe it would be better to write them together in the router file.
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I personally agree with @blurfx's suggestion, as this style of micro-separating so-called DTOs is not a common approach in Golang and may lead to an unnecessary proliferation of files for DTO management.
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One important thing to keep in mind is that all request and response types are auto-generated from the OpenAPI specification.
Validator
Since these files are auto-generated, declaring validation functions within the same file is risky, as they might be overwritten during regeneration.
Type Placement
Moving these types to their corresponding packages is quite challenging, as it is auto-generated. Additionally, the directory structure is similar to yorkie. I believe these types correspond to files like admin.pb.go and yorkie.pb.go.
DTO
I’m unsure how we should manage request and response types for REST APIs in Go. Could you provide an example or some guidance on this?
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I didn’t realize these files were auto-generated by OpenAPI generation. If that’s the case, I think it’s great!
| package models | ||
|
|
||
| type HelloRequest struct { | ||
|
|
||
| // New nickname to say hello | ||
| Nickname string `json:"nickname"` | ||
| } |
There was a problem hiding this comment.
I personally agree with @blurfx's suggestion, as this style of micro-separating so-called DTOs is not a common approach in Golang and may lead to an unnecessary proliferation of files for DTO management.
| return fmt.Errorf("error: %w", err) | ||
| }) | ||
| // Repositories | ||
| helloRepository := mongo.NewHelloRepository() |
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Initializing the database layer here does not seem familiar to me, as it exposes the layer at a two-layer depth. How about moving the database layer initialization to the service layer?
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I’m not sure if initializing the database layer within the service layer is a good idea. I believe it could reduce testability. I’d prefer to maintain the DI (Dependency Injection) structure.
What do you think? @window9u
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I also agree with krapie’s comment. In my view, the responsibility of RegisterRoutes is to receive handlers and middlewares as arguments and configure the routes.
And I expected initialize and DI repository, services, handlers in New() in internal/server/server.go
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Initializing the repository at the router level isn't a good idea to me either.
Considering DI and testability, I think it would be better to initialize at the root level (cmd/codepair/main.go) and pass it to the services below.
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I don't think it's a good idea to initialize not only the repository, but also the service and handler at the router level.
I think it's better to inject the Handler at the router level, so that we can configure the E2E test in the way we want later.
So, I'd prefer to initialize Repository, Service, Handler, etc. at a layer one level higher than the router level.
| @@ -0,0 +1,16 @@ | |||
| package rest | |||
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How about changing the package name to http? This would better represent the files within the package and their role in handling HTTP request/response logic.
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I’d love to, but naming it http would be redundant with net/http. We could use an alias like http2 instead…
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Maybe we can use package name aliasing for net/http, renaming it to something like nethttp, as shown below:
import nethttp "net/http"
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Actionable comments posted: 2
🧹 Nitpick comments (2)
backend-go/internal/core/hello/handler.go (2)
21-26: Add context timeout and enhance input validation.Consider the following improvements:
- Add context timeout to prevent long-running requests
- Add specific validation for the nickname field (e.g., length, allowed characters)
Example implementation:
func (h Handler) HelloCodePair(e echo.Context) error { + ctx, cancel := context.WithTimeout(e.Request().Context(), 5*time.Second) + defer cancel() + data := new(models.HelloRequest) if err := rest.BindAndValidateRequest(e, data); err != nil { return err } + + if err := validateNickname(data.Nickname); err != nil { + return rest.NewBadRequestError(e, err) + }
31-33: Enhance error handling with specific error types.Consider returning more specific error responses based on the error type from the service layer.
Example implementation:
if err != nil { - return rest.NewErrorResponse(e, err) + switch { + case errors.Is(err, ErrInvalidVisitor): + return rest.NewBadRequestError(e, err) + case errors.Is(err, ErrServiceUnavailable): + return rest.NewServiceUnavailableError(e, err) + default: + return rest.NewInternalServerError(e, err) + } }
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📒 Files selected for processing (5)
backend-go/api/codepair/v1/models/errors.go(1 hunks)backend-go/api/codepair/v1/models/model_http_exception_response.go(1 hunks)backend-go/internal/core/hello/handler.go(1 hunks)backend-go/internal/core/hello/service.go(1 hunks)package.json(1 hunks)
🚧 Files skipped from review as they are similar to previous changes (3)
- backend-go/api/codepair/v1/models/model_http_exception_response.go
- backend-go/api/codepair/v1/models/errors.go
- backend-go/internal/core/hello/service.go
🧰 Additional context used
🪛 golangci-lint (1.62.2)
backend-go/internal/core/hello/handler.go
6-6: could not import github.com/yorkie-team/codepair/backend/internal/transport/rest (-: # github.com/yorkie-team/codepair/backend/internal/transport/rest
internal/transport/rest/error_responses.go:10:15: cannot use statusCode (variable of type int32) as int value in struct literal)
(typecheck)
🔇 Additional comments (2)
package.json (1)
18-18: Enhance Backend Generation Command with Explicit Type MappingAdding the
--type-mappings int32=intoption now ensures that any integer field defined asint32in your OpenAPI specification is generated as a Gointin the backend code. This change is aligned with the PR objectives for implementing the new Dummy API endpoint and related models. Please verify that this mapping is consistent with your project's data type expectations and that it won’t lead to potential type misinterpretations in the generated code.backend-go/internal/core/hello/handler.go (1)
13-18: LGTM! Well-structured constructor following dependency injection pattern.The constructor is well-documented and correctly implements dependency injection.
| type Handler struct { | ||
| helloService Service | ||
| } |
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💡 Codebase verification
Service is implemented as a concrete type rather than an interface.
- The search for a
type Service interfacedefinition returned no results. - The
HelloCodePairmethod is defined on a concreteServicetype inbackend-go/internal/core/hello/service.go. - If the design aims to use a Service interface for dependency injection and flexibility, this struct should be refactored to an interface.
🔗 Analysis chain
Verify Service interface definition.
The Handler struct depends on a Service type that needs to be properly defined with the required methods.
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#!/bin/bash
# Description: Check the Service interface definition
# Look for Service interface definition
ast-grep --pattern 'type Service interface {
$$$
}'
# Look for Service implementation
ast-grep --pattern 'type $_ struct {
$$$
}
func ($_ $_) HelloCodePair($_, $_) ($_, $_) {
$$$
}'
Length of output: 158
Script:
#!/bin/bash
# Check for the Service interface definition using ripgrep
echo "Searching for 'type Service interface' definitions:"
rg -n "type Service interface" .
# Additionally, search for any mention of HelloCodePair
echo "Searching for 'HelloCodePair' method definitions:"
rg -n "func .*HelloCodePair" .
Length of output: 548
| import ( | ||
| "github.com/labstack/echo/v4" | ||
| "github.com/yorkie-team/codepair/backend/api/codepair/v1/models" | ||
| "github.com/yorkie-team/codepair/backend/internal/transport/rest" | ||
| ) |
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💡 Codebase verification
Type Mismatch Issue in newHttpExceptionResponse
The function in backend-go/internal/transport/rest/error_responses.go is declared with statusCode as an int32 parameter, but it directly assigns this value to StatusCode in a models.HttpExceptionResponse, which is defined as an int. This mismatch requires either an explicit conversion (e.g., StatusCode: int(statusCode)) or a change of the parameter’s type to int to ensure type compatibility.
- Location to change:
backend-go/internal/transport/rest/error_responses.go: newHttpExceptionResponse
🔗 Analysis chain
Verify rest package compatibility.
The static analysis indicates a type mismatch in the rest package where statusCode (int32) is being used where an int is expected. This could affect error handling in this handler.
I'll gather more details about the definition of HttpExceptionResponse in the models package to verify if there is any type mismatch with the statusCode parameter in the rest package.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Check the rest package implementation for type compatibility issues
# Check the error_responses.go file implementation
ast-grep --pattern 'type statusCode int32'
# Check for any type conversion between int32 and int in error handling
rg -A 5 'statusCode.*int'
Length of output: 583
Script:
#!/bin/bash
# Check the models package for the HttpExceptionResponse type definition and its fields.
rg -C 5 "type HttpExceptionResponse" --type go
Length of output: 724
🧰 Tools
🪛 golangci-lint (1.62.2)
6-6: could not import github.com/yorkie-team/codepair/backend/internal/transport/rest (-: # github.com/yorkie-team/codepair/backend/internal/transport/rest
internal/transport/rest/error_responses.go:10:15: cannot use statusCode (variable of type int32) as int value in struct literal)
(typecheck)
| return fmt.Errorf("error: %w", err) | ||
| }) | ||
| // Repositories | ||
| helloRepository := mongo.NewHelloRepository() |
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I don't think it's a good idea to initialize not only the repository, but also the service and handler at the router level.
I think it's better to inject the Handler at the router level, so that we can configure the E2E test in the way we want later.
So, I'd prefer to initialize Repository, Service, Handler, etc. at a layer one level higher than the router level.
| ) | ||
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| type Handler struct { | ||
| helloService Service |
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| helloService Service | |
| helloService *Service |
How about having fields with pointer types instead of value types?
What this PR does / why we need it:
Which issue(s) this PR fixes:
Fixes #
Special notes for your reviewer:
Does this PR introduce a user-facing change?:
Additional documentation:
Checklist:
Summary by CodeRabbit
New Features
Refactor