From 8601f0f98c426aa5bb9285f97ca3a37aa6936f72 Mon Sep 17 00:00:00 2001
From: Alex Guerrieri <ag@horizon.io>
Date: Wed, 4 Dec 2024 14:12:04 +0100
Subject: [PATCH] Error by Code/Name

---
 _examples/golang-basics/example.gen.go | 32 ++++++++++++++++++++++++++
 errors.go.tmpl                         | 20 ++++++++++++++++
 2 files changed, 52 insertions(+)

diff --git a/_examples/golang-basics/example.gen.go b/_examples/golang-basics/example.gen.go
index 9d979f9..1064df5 100644
--- a/_examples/golang-basics/example.gen.go
+++ b/_examples/golang-basics/example.gen.go
@@ -1055,3 +1055,35 @@ var (
 	ErrUnauthorized    = WebRPCError{Code: 400200, Name: "Unauthorized", Message: "unauthorized", HTTPStatus: 401}
 	ErrUserNotFound    = WebRPCError{Code: 400300, Name: "UserNotFound", Message: "user not found", HTTPStatus: 400}
 )
+
+func ErrorByCode(code int) (WebRPCError, bool) {
+	switch code {
+	case ErrMissingArgument.Code:
+		return ErrMissingArgument, true
+	case ErrInvalidUsername.Code:
+		return ErrInvalidUsername, true
+	case ErrMemoryFull.Code:
+		return ErrMemoryFull, true
+	case ErrUnauthorized.Code:
+		return ErrUnauthorized, true
+	case ErrUserNotFound.Code:
+		return ErrUserNotFound, true
+	}
+	return WebRPCError{}, false
+}
+
+func ErrorByName(name string) (WebRPCError, bool) {
+	switch name {
+	case ErrMissingArgument.Name:
+		return ErrMissingArgument, true
+	case ErrInvalidUsername.Name:
+		return ErrInvalidUsername, true
+	case ErrMemoryFull.Name:
+		return ErrMemoryFull, true
+	case ErrUnauthorized.Name:
+		return ErrUnauthorized, true
+	case ErrUserNotFound.Name:
+		return ErrUserNotFound, true
+	}
+	return WebRPCError{}, false
+}
diff --git a/errors.go.tmpl b/errors.go.tmpl
index e409369..087cee2 100644
--- a/errors.go.tmpl
+++ b/errors.go.tmpl
@@ -91,6 +91,26 @@ var (
 	{{ printf "Err%s = WebRPCError{Code: %v, Name: %q, Message: %q, HTTPStatus: %v}" $error.Name $error.Code $error.Name $error.Message $error.HTTPStatus}}
 {{- end}}
 )
+
+func ErrorByCode(code int) (WebRPCError, bool) {
+	switch code {
+	{{- range $_, $error := $schemaErrors}}
+	case Err{{$error.Name}}.Code:
+		return Err{{$error.Name}}, true
+	{{- end}}
+	}
+	return WebRPCError{}, false
+}
+
+func ErrorByName(name string) (WebRPCError, bool) {
+	switch name {
+	{{- range $_, $error := $schemaErrors}}
+	case Err{{$error.Name}}.Name:
+		return Err{{$error.Name}}, true
+	{{- end}}
+	}
+	return WebRPCError{}, false
+}
 {{ end -}}
 
 {{- end -}}