Internationalization in golang function error handling
GoLang functions can perform error internationalization through the Wrapf and Errorf functions in the errors package, thereby creating localized error messages and appending them to other errors to form higher-level errors. By using the Wrapf function, you can internationalize low-level errors and append a custom message, such as "Error opening file %s".
Internationalization in GoLang function error handling
GoLang provides a powerful error handling mechanism, but by default The error message is in English. This can cause problems for multilingual applications. This article will describe how to use the Wrapf and Errorf functions in the errors package for error internationalization.
Using Errorf
The Errorf function is used to create a new error that contains formatted error information. You can use this function to create a localized error message:
import (
"fmt"
)
func main() {
err := fmt.Errorf("操作失败：%w", myError)
} The above code creates a new error containing the error message from myError.
Using Wrapf
Wrapf function is used to create a new error containing the formatted error appended to Among other errors. This is useful for converting low-level errors into higher-level errors:
import (
"errors"
"fmt"
)
func main() {
err := errors.Wrapf(myError, "文件打开失败：%w")
}The above code creates a new error with the error message from myError and appends "File open failed " information.
Practical case
The following is a practical case of using wrong internationalization:
import (
"errors"
"fmt"
"io"
)
func main() {
if err := readFile("file.txt"); err != nil {
log.Println(err)
}
}
func readFile(filename string) error {
file, err := os.Open(filename)
if err != nil {
return errors.Wrapf(err, "打开文件 %s 出错", filename)
}
defer file.Close()
//从文件中读取数据
}In this example, readFile Function internationalized file open error using Wrapf function. When a file fails to open, log.Println will print a localized error message informing the user that the file cannot be opened.
Conclusion
By using the Wrapf and Errorf functions from the errors package, you can Easily internationalize error messages in GoLang functions. This is important for multilingual applications because it allows users to see meaningful error messages in their own language.
The above is the detailed content of Internationalization in golang function error handling. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undress AI Tool
Undress images for free
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Strategies for Integrating Golang Services with Existing Python Infrastructure
Jul 02, 2025 pm 04:39 PM
TointegrateGolangserviceswithexistingPythoninfrastructure,useRESTAPIsorgRPCforinter-servicecommunication,allowingGoandPythonappstointeractseamlesslythroughstandardizedprotocols.1.UseRESTAPIs(viaframeworkslikeGininGoandFlaskinPython)orgRPC(withProtoco
Understanding the Performance Differences Between Golang and Python for Web APIs
Jul 03, 2025 am 02:40 AM
Golangofferssuperiorperformance,nativeconcurrencyviagoroutines,andefficientresourceusage,makingitidealforhigh-traffic,low-latencyAPIs;2.Python,whileslowerduetointerpretationandtheGIL,provideseasierdevelopment,arichecosystem,andisbettersuitedforI/O-bo
Handling exceptions and logging errors in a Laravel application
Jul 02, 2025 pm 03:24 PM
The core methods for handling exceptions and recording errors in Laravel applications include: 1. Use the App\Exceptions\Handler class to centrally manage unhandled exceptions, and record or notify exception information through the report() method, such as sending Slack notifications; 2. Use Monolog to configure the log system, set the log level and output method in config/logging.php, and enable error and above level logs in production environment. At the same time, detailed exception information can be manually recorded in report() in combination with the context; 3. Customize the render() method to return a unified JSON format error response, improving the collaboration efficiency of the front and back end of the API. These steps are
How do I use the errors package to create and wrap errors in Go?
Jun 23, 2025 pm 11:29 PM
InGo,effectiveerrorhandlinguseserrors.Neworfmt.Errorfforbasicerrors,wrapserrorswith%wtopreservecontext,andinspectserrorsusingerrors.Isanderrors.As.1.errors.Newandfmt.Errorfcreatesimpleerrorswithoutcontext.2.Wrappingwith%waddscontextwhilepreservingthe
How to create a Dockerfile for a basic Golang application?
Jun 25, 2025 pm 04:48 PM
To write a Dockerfile for basic Golang applications, you need to understand three core steps: selecting a suitable image, building an application, and packaging the operating environment. 1. Use multi-stage construction to reduce volume. In the first stage, use golang:1.21 image to compile and generate executable files. In the second stage, only copy the compilation results and run them. 2. Set CGO_ENABLED=0 to avoid C library dependencies, unify the working directory such as /app and use the COPY instruction to copy the code. It is recommended to cooperate with .dockerignore to exclude irrelevant files; 3. Specify specific Go versions such as golang:1.21 instead of latest to ensure the controllable version and improve CI/CD consistency and compatibility.
Memory Footprint Comparison: Running Identical Web Service Workloads in Golang and Python
Jul 03, 2025 am 02:32 AM
GousessignificantlylessmemorythanPythonwhenrunningwebservicesduetolanguagedesignandconcurrencymodeldifferences.1.Go'sgoroutinesarelightweightwithminimalstackoverhead,allowingefficienthandlingofthousandsofconnections.2.Itsgarbagecollectorisoptimizedfo
How do I return errors from functions in Go?
Jun 23, 2025 am 09:10 AM
In Go, the standard way a function returns an error is to use error as the last return value. Returns error messages via the built-in error interface, usually using fmt.Errorf to create an error and wrap the error with %w to preserve the context. The caller needs to check whether err is nil to handle the errors, and at the same time, errors.Unwrap, errors.Is or errors.As can be used to resolve complex errors. The Error() method is required when defining a custom error type, but in most cases, the wrapping standard error is sufficient. Errors should be returned in time when they cannot be processed and attached with the following text, only logging or terminating the program at the top level. Also, the errors returned should always be checked to avoid ignoring them.
The State of Machine Learning Libraries: Golang's Offerings vs the Extensive Python Ecosystem
Jul 03, 2025 am 02:00 AM
Pythonisthedominantlanguageformachinelearningduetoitsmatureecosystem,whileGoofferslightweighttoolssuitedforspecificusecases.PythonexcelswithlibrarieslikeTensorFlow,PyTorch,Scikit-learn,andPandas,makingitidealforresearch,prototyping,anddeployment.Go,d
