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Merge pull request #29 from proullon/dev/proullon/http

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feat (helper): handle google.api.http option with httpVerb and httpPath
This commit is contained in:
Manfred Touron 2016-12-23 00:06:32 +01:00 committed by GitHub
commit f4f2300417
5 changed files with 700 additions and 0 deletions
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101
helpers.go
View File

@ -2,13 +2,16 @@ package main
import ( import (
"encoding/json" "encoding/json"
"fmt"
"strings" "strings"
"text/template" "text/template"
"github.com/Masterminds/sprig" "github.com/Masterminds/sprig"
"github.com/huandu/xstrings" "github.com/huandu/xstrings"
"github.com/golang/protobuf/proto"
"github.com/golang/protobuf/protoc-gen-go/descriptor" "github.com/golang/protobuf/protoc-gen-go/descriptor"
options "github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis/google/api"
) )
var ProtoHelpersFuncMap = template.FuncMap{ var ProtoHelpersFuncMap = template.FuncMap{
@ -55,6 +58,9 @@ var ProtoHelpersFuncMap = template.FuncMap{
}, },
"getMessageType": getMessageType, "getMessageType": getMessageType,
"isFieldMessage": isFieldMessage, "isFieldMessage": isFieldMessage,
"goType": goType,
"httpVerb": httpVerb,
"httpPath": httpPath,
} }
func init() { func init() {
@ -82,3 +88,98 @@ func isFieldMessage(f *descriptor.FieldDescriptorProto) bool {
return false return false
} }
func goType(pkg string, f *descriptor.FieldDescriptorProto) string {
switch *f.Type {
case descriptor.FieldDescriptorProto_TYPE_DOUBLE:
return "float64"
case descriptor.FieldDescriptorProto_TYPE_FLOAT:
return "float32"
case descriptor.FieldDescriptorProto_TYPE_INT64:
return "int64"
case descriptor.FieldDescriptorProto_TYPE_UINT64:
return "uint64"
case descriptor.FieldDescriptorProto_TYPE_INT32:
return "uint32"
case descriptor.FieldDescriptorProto_TYPE_BOOL:
return "bool"
case descriptor.FieldDescriptorProto_TYPE_STRING:
return "string"
case descriptor.FieldDescriptorProto_TYPE_MESSAGE:
if *f.Label == descriptor.FieldDescriptorProto_LABEL_REPEATED {
return fmt.Sprintf("[]*%s.%s", pkg, shortType(*f.TypeName))
}
return fmt.Sprintf("*%s.%s", pkg, shortType(*f.TypeName))
case descriptor.FieldDescriptorProto_TYPE_BYTES:
return "byte"
case descriptor.FieldDescriptorProto_TYPE_UINT32:
return "uint32"
case descriptor.FieldDescriptorProto_TYPE_ENUM:
return fmt.Sprintf("*%s.%s", pkg, shortType(*f.TypeName))
default:
return "interface{}"
}
}
func shortType(s string) string {
t := strings.Split(s, ".")
return t[len(t)-1]
}
func httpPath(m *descriptor.MethodDescriptorProto) string {
ext, err := proto.GetExtension(m.Options, options.E_Http)
if err != nil {
return err.Error()
}
opts, ok := ext.(*options.HttpRule)
if !ok {
return fmt.Sprintf("extension is %T; want an HttpRule", ext)
}
switch t := opts.Pattern.(type) {
default:
return ""
case *options.HttpRule_Get:
return t.Get
case *options.HttpRule_Post:
return t.Post
case *options.HttpRule_Put:
return t.Put
case *options.HttpRule_Delete:
return t.Delete
case *options.HttpRule_Patch:
return t.Patch
case *options.HttpRule_Custom:
return t.Custom.Path
}
}
func httpVerb(m *descriptor.MethodDescriptorProto) string {
ext, err := proto.GetExtension(m.Options, options.E_Http)
if err != nil {
return err.Error()
}
opts, ok := ext.(*options.HttpRule)
if !ok {
return fmt.Sprintf("extension is %T; want an HttpRule", ext)
}
switch t := opts.Pattern.(type) {
default:
return ""
case *options.HttpRule_Get:
return "GET"
case *options.HttpRule_Post:
return "POST"
case *options.HttpRule_Put:
return "PUT"
case *options.HttpRule_Delete:
return "DELETE"
case *options.HttpRule_Patch:
return "PATCH"
case *options.HttpRule_Custom:
return t.Custom.Kind
}
}

62
vendor/github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis/google/api/annotations.pb.go generated vendored Normal file
View File

@ -0,0 +1,62 @@
// Code generated by protoc-gen-go.
// source: google/api/annotations.proto
// DO NOT EDIT!
/*
Package google_api is a generated protocol buffer package.
It is generated from these files:
google/api/annotations.proto
google/api/http.proto
It has these top-level messages:
HttpRule
CustomHttpPattern
*/
package google_api
import proto "github.com/golang/protobuf/proto"
import fmt "fmt"
import math "math"
import google_protobuf "github.com/golang/protobuf/protoc-gen-go/descriptor"
// Reference imports to suppress errors if they are not otherwise used.
var _ = proto.Marshal
var _ = fmt.Errorf
var _ = math.Inf
// This is a compile-time assertion to ensure that this generated file
// is compatible with the proto package it is being compiled against.
// A compilation error at this line likely means your copy of the
// proto package needs to be updated.
const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
var E_Http = &proto.ExtensionDesc{
ExtendedType: (*google_protobuf.MethodOptions)(nil),
ExtensionType: (*HttpRule)(nil),
Field: 72295728,
Name: "google.api.http",
Tag: "bytes,72295728,opt,name=http",
Filename: "google/api/annotations.proto",
}
func init() {
proto.RegisterExtension(E_Http)
}
func init() { proto.RegisterFile("google/api/annotations.proto", fileDescriptor0) }
var fileDescriptor0 = []byte{
// 169 bytes of a gzipped FileDescriptorProto
0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0xe2, 0x92, 0x49, 0xcf, 0xcf, 0x4f,
0xcf, 0x49, 0xd5, 0x4f, 0x2c, 0xc8, 0xd4, 0x4f, 0xcc, 0xcb, 0xcb, 0x2f, 0x49, 0x2c, 0xc9, 0xcc,
0xcf, 0x2b, 0xd6, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, 0xe2, 0x82, 0xc8, 0xea, 0x25, 0x16, 0x64,
0x4a, 0x89, 0x22, 0xa9, 0xcc, 0x28, 0x29, 0x29, 0x80, 0x28, 0x91, 0x52, 0x80, 0x0a, 0x83, 0x79,
0x49, 0xa5, 0x69, 0xfa, 0x29, 0xa9, 0xc5, 0xc9, 0x45, 0x99, 0x05, 0x25, 0xf9, 0x45, 0x10, 0x15,
0x56, 0xde, 0x5c, 0x2c, 0x20, 0xf5, 0x42, 0x72, 0x7a, 0x50, 0xd3, 0x60, 0x4a, 0xf5, 0x7c, 0x53,
0x4b, 0x32, 0xf2, 0x53, 0xfc, 0x0b, 0xc0, 0x56, 0x4a, 0x6c, 0x38, 0xb5, 0x47, 0x49, 0x81, 0x51,
0x83, 0xdb, 0x48, 0x44, 0x0f, 0x61, 0xad, 0x9e, 0x47, 0x49, 0x49, 0x41, 0x50, 0x69, 0x4e, 0x6a,
0x10, 0xd8, 0x10, 0x27, 0x15, 0x2e, 0xbe, 0xe4, 0xfc, 0x5c, 0x24, 0x05, 0x4e, 0x02, 0x8e, 0x08,
0x67, 0x07, 0x80, 0x4c, 0x0e, 0x60, 0x4c, 0x62, 0x03, 0x5b, 0x61, 0x0c, 0x08, 0x00, 0x00, 0xff,
0xff, 0x4f, 0xd1, 0x89, 0x83, 0xde, 0x00, 0x00, 0x00,
}

29
vendor/github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis/google/api/annotations.proto generated vendored Normal file
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@ -0,0 +1,29 @@
// Copyright (c) 2015, Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
syntax = "proto3";
package google.api;
import "google/api/http.proto";
import "google/protobuf/descriptor.proto";
option java_multiple_files = true;
option java_outer_classname = "AnnotationsProto";
option java_package = "com.google.api";
extend google.protobuf.MethodOptions {
// See `HttpRule`.
HttpRule http = 72295728;
}

381
vendor/github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis/google/api/http.pb.go generated vendored Normal file
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@ -0,0 +1,381 @@
// Code generated by protoc-gen-go.
// source: google/api/http.proto
// DO NOT EDIT!
package google_api
import proto "github.com/golang/protobuf/proto"
import fmt "fmt"
import math "math"
// Reference imports to suppress errors if they are not otherwise used.
var _ = proto.Marshal
var _ = fmt.Errorf
var _ = math.Inf
// `HttpRule` defines the mapping of an RPC method to one or more HTTP REST API
// methods. The mapping determines what portions of the request message are
// populated from the path, query parameters, or body of the HTTP request. The
// mapping is typically specified as an `google.api.http` annotation, see
// "google/api/annotations.proto" for details.
//
// The mapping consists of a mandatory field specifying a path template and an
// optional `body` field specifying what data is represented in the HTTP request
// body. The field name for the path indicates the HTTP method. Example:
//
// ```
// package google.storage.v2;
//
// import "google/api/annotations.proto";
//
// service Storage {
// rpc CreateObject(CreateObjectRequest) returns (Object) {
// option (google.api.http) {
// post: "/v2/{bucket_name=buckets/*}/objects"
// body: "object"
// };
// };
// }
// ```
//
// Here `bucket_name` and `object` bind to fields of the request message
// `CreateObjectRequest`.
//
// The rules for mapping HTTP path, query parameters, and body fields
// to the request message are as follows:
//
// 1. The `body` field specifies either `*` or a field path, or is
// omitted. If omitted, it assumes there is no HTTP body.
// 2. Leaf fields (recursive expansion of nested messages in the
// request) can be classified into three types:
// (a) Matched in the URL template.
// (b) Covered by body (if body is `*`, everything except (a) fields;
// else everything under the body field)
// (c) All other fields.
// 3. URL query parameters found in the HTTP request are mapped to (c) fields.
// 4. Any body sent with an HTTP request can contain only (b) fields.
//
// The syntax of the path template is as follows:
//
// Template = "/" Segments [ Verb ] ;
// Segments = Segment { "/" Segment } ;
// Segment = "*" | "**" | LITERAL | Variable ;
// Variable = "{" FieldPath [ "=" Segments ] "}" ;
// FieldPath = IDENT { "." IDENT } ;
// Verb = ":" LITERAL ;
//
// `*` matches a single path component, `**` zero or more path components, and
// `LITERAL` a constant. A `Variable` can match an entire path as specified
// again by a template; this nested template must not contain further variables.
// If no template is given with a variable, it matches a single path component.
// The notation `{var}` is henceforth equivalent to `{var=*}`.
//
// Use CustomHttpPattern to specify any HTTP method that is not included in the
// pattern field, such as HEAD, or "*" to leave the HTTP method unspecified for
// a given URL path rule. The wild-card rule is useful for services that provide
// content to Web (HTML) clients.
type HttpRule struct {
// Determines the URL pattern is matched by this rules. This pattern can be
// used with any of the {get|put|post|delete|patch} methods. A custom method
// can be defined using the 'custom' field.
//
// Types that are valid to be assigned to Pattern:
// *HttpRule_Get
// *HttpRule_Put
// *HttpRule_Post
// *HttpRule_Delete
// *HttpRule_Patch
// *HttpRule_Custom
Pattern isHttpRule_Pattern `protobuf_oneof:"pattern"`
// The name of the request field whose value is mapped to the HTTP body, or
// `*` for mapping all fields not captured by the path pattern to the HTTP
// body.
Body string `protobuf:"bytes,7,opt,name=body" json:"body,omitempty"`
// Additional HTTP bindings for the selector. Nested bindings must not
// specify a selector and must not contain additional bindings.
AdditionalBindings []*HttpRule `protobuf:"bytes,11,rep,name=additional_bindings,json=additionalBindings" json:"additional_bindings,omitempty"`
}
func (m *HttpRule) Reset() { *m = HttpRule{} }
func (m *HttpRule) String() string { return proto.CompactTextString(m) }
func (*HttpRule) ProtoMessage() {}
func (*HttpRule) Descriptor() ([]byte, []int) { return fileDescriptor1, []int{0} }
type isHttpRule_Pattern interface {
isHttpRule_Pattern()
}
type HttpRule_Get struct {
Get string `protobuf:"bytes,2,opt,name=get,oneof"`
}
type HttpRule_Put struct {
Put string `protobuf:"bytes,3,opt,name=put,oneof"`
}
type HttpRule_Post struct {
Post string `protobuf:"bytes,4,opt,name=post,oneof"`
}
type HttpRule_Delete struct {
Delete string `protobuf:"bytes,5,opt,name=delete,oneof"`
}
type HttpRule_Patch struct {
Patch string `protobuf:"bytes,6,opt,name=patch,oneof"`
}
type HttpRule_Custom struct {
Custom *CustomHttpPattern `protobuf:"bytes,8,opt,name=custom,oneof"`
}
func (*HttpRule_Get) isHttpRule_Pattern() {}
func (*HttpRule_Put) isHttpRule_Pattern() {}
func (*HttpRule_Post) isHttpRule_Pattern() {}
func (*HttpRule_Delete) isHttpRule_Pattern() {}
func (*HttpRule_Patch) isHttpRule_Pattern() {}
func (*HttpRule_Custom) isHttpRule_Pattern() {}
func (m *HttpRule) GetPattern() isHttpRule_Pattern {
if m != nil {
return m.Pattern
}
return nil
}
func (m *HttpRule) GetGet() string {
if x, ok := m.GetPattern().(*HttpRule_Get); ok {
return x.Get
}
return ""
}
func (m *HttpRule) GetPut() string {
if x, ok := m.GetPattern().(*HttpRule_Put); ok {
return x.Put
}
return ""
}
func (m *HttpRule) GetPost() string {
if x, ok := m.GetPattern().(*HttpRule_Post); ok {
return x.Post
}
return ""
}
func (m *HttpRule) GetDelete() string {
if x, ok := m.GetPattern().(*HttpRule_Delete); ok {
return x.Delete
}
return ""
}
func (m *HttpRule) GetPatch() string {
if x, ok := m.GetPattern().(*HttpRule_Patch); ok {
return x.Patch
}
return ""
}
func (m *HttpRule) GetCustom() *CustomHttpPattern {
if x, ok := m.GetPattern().(*HttpRule_Custom); ok {
return x.Custom
}
return nil
}
func (m *HttpRule) GetBody() string {
if m != nil {
return m.Body
}
return ""
}
func (m *HttpRule) GetAdditionalBindings() []*HttpRule {
if m != nil {
return m.AdditionalBindings
}
return nil
}
// XXX_OneofFuncs is for the internal use of the proto package.
func (*HttpRule) XXX_OneofFuncs() (func(msg proto.Message, b *proto.Buffer) error, func(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error), func(msg proto.Message) (n int), []interface{}) {
return _HttpRule_OneofMarshaler, _HttpRule_OneofUnmarshaler, _HttpRule_OneofSizer, []interface{}{
(*HttpRule_Get)(nil),
(*HttpRule_Put)(nil),
(*HttpRule_Post)(nil),
(*HttpRule_Delete)(nil),
(*HttpRule_Patch)(nil),
(*HttpRule_Custom)(nil),
}
}
func _HttpRule_OneofMarshaler(msg proto.Message, b *proto.Buffer) error {
m := msg.(*HttpRule)
// pattern
switch x := m.Pattern.(type) {
case *HttpRule_Get:
b.EncodeVarint(2<<3 | proto.WireBytes)
b.EncodeStringBytes(x.Get)
case *HttpRule_Put:
b.EncodeVarint(3<<3 | proto.WireBytes)
b.EncodeStringBytes(x.Put)
case *HttpRule_Post:
b.EncodeVarint(4<<3 | proto.WireBytes)
b.EncodeStringBytes(x.Post)
case *HttpRule_Delete:
b.EncodeVarint(5<<3 | proto.WireBytes)
b.EncodeStringBytes(x.Delete)
case *HttpRule_Patch:
b.EncodeVarint(6<<3 | proto.WireBytes)
b.EncodeStringBytes(x.Patch)
case *HttpRule_Custom:
b.EncodeVarint(8<<3 | proto.WireBytes)
if err := b.EncodeMessage(x.Custom); err != nil {
return err
}
case nil:
default:
return fmt.Errorf("HttpRule.Pattern has unexpected type %T", x)
}
return nil
}
func _HttpRule_OneofUnmarshaler(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error) {
m := msg.(*HttpRule)
switch tag {
case 2: // pattern.get
if wire != proto.WireBytes {
return true, proto.ErrInternalBadWireType
}
x, err := b.DecodeStringBytes()
m.Pattern = &HttpRule_Get{x}
return true, err
case 3: // pattern.put
if wire != proto.WireBytes {
return true, proto.ErrInternalBadWireType
}
x, err := b.DecodeStringBytes()
m.Pattern = &HttpRule_Put{x}
return true, err
case 4: // pattern.post
if wire != proto.WireBytes {
return true, proto.ErrInternalBadWireType
}
x, err := b.DecodeStringBytes()
m.Pattern = &HttpRule_Post{x}
return true, err
case 5: // pattern.delete
if wire != proto.WireBytes {
return true, proto.ErrInternalBadWireType
}
x, err := b.DecodeStringBytes()
m.Pattern = &HttpRule_Delete{x}
return true, err
case 6: // pattern.patch
if wire != proto.WireBytes {
return true, proto.ErrInternalBadWireType
}
x, err := b.DecodeStringBytes()
m.Pattern = &HttpRule_Patch{x}
return true, err
case 8: // pattern.custom
if wire != proto.WireBytes {
return true, proto.ErrInternalBadWireType
}
msg := new(CustomHttpPattern)
err := b.DecodeMessage(msg)
m.Pattern = &HttpRule_Custom{msg}
return true, err
default:
return false, nil
}
}
func _HttpRule_OneofSizer(msg proto.Message) (n int) {
m := msg.(*HttpRule)
// pattern
switch x := m.Pattern.(type) {
case *HttpRule_Get:
n += proto.SizeVarint(2<<3 | proto.WireBytes)
n += proto.SizeVarint(uint64(len(x.Get)))
n += len(x.Get)
case *HttpRule_Put:
n += proto.SizeVarint(3<<3 | proto.WireBytes)
n += proto.SizeVarint(uint64(len(x.Put)))
n += len(x.Put)
case *HttpRule_Post:
n += proto.SizeVarint(4<<3 | proto.WireBytes)
n += proto.SizeVarint(uint64(len(x.Post)))
n += len(x.Post)
case *HttpRule_Delete:
n += proto.SizeVarint(5<<3 | proto.WireBytes)
n += proto.SizeVarint(uint64(len(x.Delete)))
n += len(x.Delete)
case *HttpRule_Patch:
n += proto.SizeVarint(6<<3 | proto.WireBytes)
n += proto.SizeVarint(uint64(len(x.Patch)))
n += len(x.Patch)
case *HttpRule_Custom:
s := proto.Size(x.Custom)
n += proto.SizeVarint(8<<3 | proto.WireBytes)
n += proto.SizeVarint(uint64(s))
n += s
case nil:
default:
panic(fmt.Sprintf("proto: unexpected type %T in oneof", x))
}
return n
}
// A custom pattern is used for defining custom HTTP verb.
type CustomHttpPattern struct {
// The name of this custom HTTP verb.
Kind string `protobuf:"bytes,1,opt,name=kind" json:"kind,omitempty"`
// The path matched by this custom verb.
Path string `protobuf:"bytes,2,opt,name=path" json:"path,omitempty"`
}
func (m *CustomHttpPattern) Reset() { *m = CustomHttpPattern{} }
func (m *CustomHttpPattern) String() string { return proto.CompactTextString(m) }
func (*CustomHttpPattern) ProtoMessage() {}
func (*CustomHttpPattern) Descriptor() ([]byte, []int) { return fileDescriptor1, []int{1} }
func (m *CustomHttpPattern) GetKind() string {
if m != nil {
return m.Kind
}
return ""
}
func (m *CustomHttpPattern) GetPath() string {
if m != nil {
return m.Path
}
return ""
}
func init() {
proto.RegisterType((*HttpRule)(nil), "google.api.HttpRule")
proto.RegisterType((*CustomHttpPattern)(nil), "google.api.CustomHttpPattern")
}
func init() { proto.RegisterFile("google/api/http.proto", fileDescriptor1) }
var fileDescriptor1 = []byte{
// 280 bytes of a gzipped FileDescriptorProto
0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0x64, 0x91, 0xc1, 0x6a, 0xbb, 0x40,
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0x88, 0xa5, 0xea, 0x15, 0x29, 0xbe, 0x9c, 0xf9, 0xac, 0xd9, 0x33, 0x2c, 0x51, 0x50, 0xd3, 0xf1,
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0x0f, 0x9b, 0x7b, 0xe7, 0xeb, 0xff, 0x56, 0xec, 0xf6, 0x41, 0x39, 0xcf, 0x97, 0x09, 0xac, 0xd0,
0xe7, 0xed, 0xde, 0xe0, 0xe1, 0xcf, 0x12, 0x36, 0xfa, 0x4b, 0x0f, 0x92, 0x07, 0x3e, 0xda, 0xd6,
0x96, 0xa1, 0xa0, 0xce, 0x3f, 0x5c, 0xe5, 0xea, 0x72, 0x0b, 0xff, 0x1b, 0x73, 0xbe, 0x8b, 0x2d,
0x13, 0x67, 0x63, 0x2f, 0x70, 0x0a, 0xea, 0xd8, 0x9d, 0xe2, 0xe5, 0x37, 0x00, 0x00, 0xff, 0xff,
0x2f, 0x89, 0x57, 0x7f, 0xa3, 0x01, 0x00, 0x00,
}

127
vendor/github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis/google/api/http.proto generated vendored Normal file
View File

@ -0,0 +1,127 @@
// Copyright (c) 2015, Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
syntax = "proto3";
package google.api;
option java_multiple_files = true;
option java_outer_classname = "HttpProto";
option java_package = "com.google.api";
// `HttpRule` defines the mapping of an RPC method to one or more HTTP REST API
// methods. The mapping determines what portions of the request message are
// populated from the path, query parameters, or body of the HTTP request. The
// mapping is typically specified as an `google.api.http` annotation, see
// "google/api/annotations.proto" for details.
//
// The mapping consists of a mandatory field specifying a path template and an
// optional `body` field specifying what data is represented in the HTTP request
// body. The field name for the path indicates the HTTP method. Example:
//
// ```
// package google.storage.v2;
//
// import "google/api/annotations.proto";
//
// service Storage {
// rpc CreateObject(CreateObjectRequest) returns (Object) {
// option (google.api.http) {
// post: "/v2/{bucket_name=buckets/*}/objects"
// body: "object"
// };
// };
// }
// ```
//
// Here `bucket_name` and `object` bind to fields of the request message
// `CreateObjectRequest`.
//
// The rules for mapping HTTP path, query parameters, and body fields
// to the request message are as follows:
//
// 1. The `body` field specifies either `*` or a field path, or is
// omitted. If omitted, it assumes there is no HTTP body.
// 2. Leaf fields (recursive expansion of nested messages in the
// request) can be classified into three types:
// (a) Matched in the URL template.
// (b) Covered by body (if body is `*`, everything except (a) fields;
// else everything under the body field)
// (c) All other fields.
// 3. URL query parameters found in the HTTP request are mapped to (c) fields.
// 4. Any body sent with an HTTP request can contain only (b) fields.
//
// The syntax of the path template is as follows:
//
// Template = "/" Segments [ Verb ] ;
// Segments = Segment { "/" Segment } ;
// Segment = "*" | "**" | LITERAL | Variable ;
// Variable = "{" FieldPath [ "=" Segments ] "}" ;
// FieldPath = IDENT { "." IDENT } ;
// Verb = ":" LITERAL ;
//
// `*` matches a single path component, `**` zero or more path components, and
// `LITERAL` a constant. A `Variable` can match an entire path as specified
// again by a template; this nested template must not contain further variables.
// If no template is given with a variable, it matches a single path component.
// The notation `{var}` is henceforth equivalent to `{var=*}`.
//
// Use CustomHttpPattern to specify any HTTP method that is not included in the
// pattern field, such as HEAD, or "*" to leave the HTTP method unspecified for
// a given URL path rule. The wild-card rule is useful for services that provide
// content to Web (HTML) clients.
message HttpRule {
// Determines the URL pattern is matched by this rules. This pattern can be
// used with any of the {get|put|post|delete|patch} methods. A custom method
// can be defined using the 'custom' field.
oneof pattern {
// Used for listing and getting information about resources.
string get = 2;
// Used for updating a resource.
string put = 3;
// Used for creating a resource.
string post = 4;
// Used for deleting a resource.
string delete = 5;
// Used for updating a resource.
string patch = 6;
// Custom pattern is used for defining custom verbs.
CustomHttpPattern custom = 8;
}
// The name of the request field whose value is mapped to the HTTP body, or
// `*` for mapping all fields not captured by the path pattern to the HTTP
// body.
string body = 7;
// Additional HTTP bindings for the selector. Nested bindings must not
// specify a selector and must not contain additional bindings.
repeated HttpRule additional_bindings = 11;
}
// A custom pattern is used for defining custom HTTP verb.
message CustomHttpPattern {
// The name of this custom HTTP verb.
string kind = 1;
// The path matched by this custom verb.
string path = 2;
}