rmcguire/go-server-with-otel
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fix buf validate, add sample field validation
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This commit is contained in:
Ryan McGuire
2025-07-21 16:39:00 -04:00
parent b9d6dea90b
commit 1759f91cd1
4 changed files with 10 additions and 287 deletions
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13
api/demo/app/v1alpha1/app.pb.go
View File

@ -7,6 +7,7 @@
package demo
import (
_ "buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go/buf/validate"
_ "google.golang.org/genproto/googleapis/api/annotations"
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
@ -143,15 +144,15 @@ var File_demo_app_v1alpha1_app_proto protoreflect.FileDescriptor
const file_demo_app_v1alpha1_app_proto_rawDesc = "" +
"\n" +
"\x1bdemo/app/v1alpha1/app.proto\x12\x11demo.app.v1alpha1\x1a\x1cgoogle/api/annotations.proto\x1a\x1fgoogle/protobuf/timestamp.proto\">\n" +
"\x0eGetDemoRequest\x12\x1f\n" +
"\blanguage\x18\x01 \x01(\tH\x00R\blanguage\x88\x01\x01B\v\n" +
"\t_language\"\x93\x01\n" +
"\x1bdemo/app/v1alpha1/app.proto\x12\x11demo.app.v1alpha1\x1a\x1bbuf/validate/validate.proto\x1a\x1cgoogle/api/annotations.proto\x1a\x1fgoogle/protobuf/timestamp.proto\"G\n" +
"\x0eGetDemoRequest\x12(\n" +
"\blanguage\x18\x01 \x01(\tB\a\xbaH\x04r\x02\x10\x02H\x00R\blanguage\x88\x01\x01B\v\n" +
"\t_language\"\x9c\x01\n" +
"\x0fGetDemoResponse\x128\n" +
"\ttimestamp\x18\x01 \x01(\v2\x1a.google.protobuf.TimestampR\ttimestamp\x12\x12\n" +
"\x04fact\x18\x02 \x01(\tR\x04fact\x12\x16\n" +
"\x06source\x18\x03 \x01(\tR\x06source\x12\x1a\n" +
"\blanguage\x18\x04 \x01(\tR\blanguage2z\n" +
"\x06source\x18\x03 \x01(\tR\x06source\x12#\n" +
"\blanguage\x18\x04 \x01(\tB\a\xbaH\x04r\x02\x10\x02R\blanguage2z\n" +
"\x0eDemoAppService\x12h\n" +
"\aGetDemo\x12!.demo.app.v1alpha1.GetDemoRequest\x1a\".demo.app.v1alpha1.GetDemoResponse\"\x16\x82\xd3\xe4\x93\x02\x10\x12\x0e/v1alpha1/demoB\xd5\x01\n" +
"\x15com.demo.app.v1alpha1B\bAppProtoP\x01ZLgitea.libretechconsulting.com/rmcguire/go-server-with-otel/api/v1alpha1/demo\xa2\x02\x03DAX\xaa\x02\x11Demo.App.V1alpha1\xca\x02\x11Demo\\App\\V1alpha1\xe2\x02\x1dDemo\\App\\V1alpha1\\GPBMetadata\xea\x02\x13Demo::App::V1alpha1b\x06proto3"

275
api/demo/app/v1alpha1/app.pb.validate.go
View File

@ -1,275 +0,0 @@
// Code generated by protoc-gen-validate. DO NOT EDIT.
// source: demo/app/v1alpha1/app.proto
package demo
import (
"bytes"
"errors"
"fmt"
"net"
"net/mail"
"net/url"
"regexp"
"sort"
"strings"
"time"
"unicode/utf8"
"google.golang.org/protobuf/types/known/anypb"
)
// ensure the imports are used
var (
_ = bytes.MinRead
_ = errors.New("")
_ = fmt.Print
_ = utf8.UTFMax
_ = (*regexp.Regexp)(nil)
_ = (*strings.Reader)(nil)
_ = net.IPv4len
_ = time.Duration(0)
_ = (*url.URL)(nil)
_ = (*mail.Address)(nil)
_ = anypb.Any{}
_ = sort.Sort
)
// Validate checks the field values on GetDemoRequest with the rules defined in
// the proto definition for this message. If any rules are violated, the first
// error encountered is returned, or nil if there are no violations.
func (m *GetDemoRequest) Validate() error {
return m.validate(false)
}
// ValidateAll checks the field values on GetDemoRequest with the rules defined
// in the proto definition for this message. If any rules are violated, the
// result is a list of violation errors wrapped in GetDemoRequestMultiError,
// or nil if none found.
func (m *GetDemoRequest) ValidateAll() error {
return m.validate(true)
}
func (m *GetDemoRequest) validate(all bool) error {
if m == nil {
return nil
}
var errors []error
if m.Language != nil {
// no validation rules for Language
}
if len(errors) > 0 {
return GetDemoRequestMultiError(errors)
}
return nil
}
// GetDemoRequestMultiError is an error wrapping multiple validation errors
// returned by GetDemoRequest.ValidateAll() if the designated constraints
// aren't met.
type GetDemoRequestMultiError []error
// Error returns a concatenation of all the error messages it wraps.
func (m GetDemoRequestMultiError) Error() string {
msgs := make([]string, 0, len(m))
for _, err := range m {
msgs = append(msgs, err.Error())
}
return strings.Join(msgs, "; ")
}
// AllErrors returns a list of validation violation errors.
func (m GetDemoRequestMultiError) AllErrors() []error { return m }
// GetDemoRequestValidationError is the validation error returned by
// GetDemoRequest.Validate if the designated constraints aren't met.
type GetDemoRequestValidationError struct {
field string
reason string
cause error
key bool
}
// Field function returns field value.
func (e GetDemoRequestValidationError) Field() string { return e.field }
// Reason function returns reason value.
func (e GetDemoRequestValidationError) Reason() string { return e.reason }
// Cause function returns cause value.
func (e GetDemoRequestValidationError) Cause() error { return e.cause }
// Key function returns key value.
func (e GetDemoRequestValidationError) Key() bool { return e.key }
// ErrorName returns error name.
func (e GetDemoRequestValidationError) ErrorName() string { return "GetDemoRequestValidationError" }
// Error satisfies the builtin error interface
func (e GetDemoRequestValidationError) Error() string {
cause := ""
if e.cause != nil {
cause = fmt.Sprintf(" | caused by: %v", e.cause)
}
key := ""
if e.key {
key = "key for "
}
return fmt.Sprintf(
"invalid %sGetDemoRequest.%s: %s%s",
key,
e.field,
e.reason,
cause)
}
var _ error = GetDemoRequestValidationError{}
var _ interface {
Field() string
Reason() string
Key() bool
Cause() error
ErrorName() string
} = GetDemoRequestValidationError{}
// Validate checks the field values on GetDemoResponse with the rules defined
// in the proto definition for this message. If any rules are violated, the
// first error encountered is returned, or nil if there are no violations.
func (m *GetDemoResponse) Validate() error {
return m.validate(false)
}
// ValidateAll checks the field values on GetDemoResponse with the rules
// defined in the proto definition for this message. If any rules are
// violated, the result is a list of violation errors wrapped in
// GetDemoResponseMultiError, or nil if none found.
func (m *GetDemoResponse) ValidateAll() error {
return m.validate(true)
}
func (m *GetDemoResponse) validate(all bool) error {
if m == nil {
return nil
}
var errors []error
if all {
switch v := interface{}(m.GetTimestamp()).(type) {
case interface{ ValidateAll() error }:
if err := v.ValidateAll(); err != nil {
errors = append(errors, GetDemoResponseValidationError{
field: "Timestamp",
reason: "embedded message failed validation",
cause: err,
})
}
case interface{ Validate() error }:
if err := v.Validate(); err != nil {
errors = append(errors, GetDemoResponseValidationError{
field: "Timestamp",
reason: "embedded message failed validation",
cause: err,
})
}
}
} else if v, ok := interface{}(m.GetTimestamp()).(interface{ Validate() error }); ok {
if err := v.Validate(); err != nil {
return GetDemoResponseValidationError{
field: "Timestamp",
reason: "embedded message failed validation",
cause: err,
}
}
}
// no validation rules for Fact
// no validation rules for Source
// no validation rules for Language
if len(errors) > 0 {
return GetDemoResponseMultiError(errors)
}
return nil
}
// GetDemoResponseMultiError is an error wrapping multiple validation errors
// returned by GetDemoResponse.ValidateAll() if the designated constraints
// aren't met.
type GetDemoResponseMultiError []error
// Error returns a concatenation of all the error messages it wraps.
func (m GetDemoResponseMultiError) Error() string {
msgs := make([]string, 0, len(m))
for _, err := range m {
msgs = append(msgs, err.Error())
}
return strings.Join(msgs, "; ")
}
// AllErrors returns a list of validation violation errors.
func (m GetDemoResponseMultiError) AllErrors() []error { return m }
// GetDemoResponseValidationError is the validation error returned by
// GetDemoResponse.Validate if the designated constraints aren't met.
type GetDemoResponseValidationError struct {
field string
reason string
cause error
key bool
}
// Field function returns field value.
func (e GetDemoResponseValidationError) Field() string { return e.field }
// Reason function returns reason value.
func (e GetDemoResponseValidationError) Reason() string { return e.reason }
// Cause function returns cause value.
func (e GetDemoResponseValidationError) Cause() error { return e.cause }
// Key function returns key value.
func (e GetDemoResponseValidationError) Key() bool { return e.key }
// ErrorName returns error name.
func (e GetDemoResponseValidationError) ErrorName() string { return "GetDemoResponseValidationError" }
// Error satisfies the builtin error interface
func (e GetDemoResponseValidationError) Error() string {
cause := ""
if e.cause != nil {
cause = fmt.Sprintf(" | caused by: %v", e.cause)
}
key := ""
if e.key {
key = "key for "
}
return fmt.Sprintf(
"invalid %sGetDemoResponse.%s: %s%s",
key,
e.field,
e.reason,
cause)
}
var _ error = GetDemoResponseValidationError{}
var _ interface {
Field() string
Reason() string
Key() bool
Cause() error
ErrorName() string
} = GetDemoResponseValidationError{}

4
buf.gen.yaml
View File

@ -14,10 +14,6 @@ plugins:
opt:
- paths=source_relative
- require_unimplemented_servers=false
- remote: buf.build/bufbuild/validate-go
out: api
opt:
- paths=source_relative
- remote: buf.build/grpc-ecosystem/gateway
out: api
opt:

5
proto/demo/app/v1alpha1/app.proto
View File

@ -1,6 +1,7 @@
syntax = "proto3";
package demo.app.v1alpha1;
import "buf/validate/validate.proto";
import "google/api/annotations.proto";
import "google/protobuf/timestamp.proto";
@ -9,7 +10,7 @@ option go_package = "gitea.libretechconsulting.com/rmcguire/go-server-with-otel/
// Options for random fact, in this case
// just a language
message GetDemoRequest {
optional string language = 1;
optional string language = 1 [(buf.validate.field).string.min_len = 2];
}
// Returns a randome fact, because this is a demo app
@ -18,7 +19,7 @@ message GetDemoResponse {
google.protobuf.Timestamp timestamp = 1;
string fact = 2;
string source = 3;
string language = 4;
string language = 4 [(buf.validate.field).string.min_len = 2];
}
service DemoAppService {