merr

merr is library for handle multiple error on golang.

This allows a function ig Go to return an list of error. It will be usefull when you do call some function to get multiple error handler.

merr is fully compatible with the Go standard library errors package, including the functions As, Is, and Unwrap. This provides a standardized approach for introspecting on error values.

Documentation

Installation

Install using go get github.com/firdasafridi/merr.

Example

merr is easy to use in existing Go applications/libraries that may not be aware of it.

The Set function is used to create a list of errors. If you need to set prefix you can add it with SetPrefix.

var mulerr merr.Error

if err := sampleLogic1(); err != nil {
	mulerr.Set(err)
}

if err := sampleLogic2(); err != nil {
	mulerr.SetPrefix("Sample Prefix", err)
}
    
return mulerr.IsError()

Customizing the formating of the errors

If you want customizing format error it will be simple like this.

var funcFormat = func(errorList []error) string {
 	if len(errorList) == 1 {
		return ""
	}

	var listErr string
	for _, err := range errorList {
		listErr += err.Error() + "\n"
	}
	return "[ERROR Change]" + listErr
}

merr.NewFormat(funcFormat)