errs

This package provides a simple error type that can be used to map errors to HTTP and GRPC status codes.

It is heavily inspired by encore.dev/beta/errs but adds support for GRPC codes.

Usage

• go docs https://pkg.go.dev/github.com/lordvidex/errs
• Examples:

package main

import (
	"fmt"
	"github.com/lordvidex/errs"
	"encoding/json"
)

func main() {
	err := errs.B().Code(errs.NotFound).Msg("user not found").Err()
	// err.Error() == "user not found"
	// err.HTTPCode() == 404
	// err.GRPCCode() == 5
	b, _ := json.Marshal(err)
	fmt.Println(string(b)) 
	// Outputs: {"code":"not_found", "message":"user not found"}
}

• check the tests for more usage and examples

Codes

Code	HTTP Status	GRPC Code	Name
0	http.StatusInternalServerError	codes.Unknown	Unknown Code
1	499	codes.Canceled	Canceled
2	http.StatusBadRequest	codes.InvalidArgument	InvalidArgument
3	http.StatusGatewayTimeout	codes.DeadlineExceeded	DeadlineExceeded
4	http.StatusUnauthorized	codes.Unauthenticated	Unauthenticated
5	http.StatusNotFound	codes.NotFound	NotFound
6	http.StatusConflict	codes.AlreadyExists	AlreadyExists
7	http.StatusForbidden	codes.PermissionDenied	Forbidden
8	http.StatusTooManyRequests	codes.ResourceExhausted	ResourceExhausted
9	http.StatusPreconditionFailed	codes.FailedPrecondition	FailedPrecondition
10	http.StatusConflict	codes.Aborted	Aborted
11	httpStatusRequestedRangeNotSatisfiable	codes.OutOfRange	OutOfRange
12	http.StatusInternalServerError	codes.Internal	Internal
13	http.StatusServiceUnavailable	codes.Unavailable	Unavailable
14	http.StatusInternalServerError	codes.DataLoss	DataLoss

References

• google.golang.org/grpc/codes for grpc codes