annotations

package
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 Go to latest Published: Sep 1, 2020 License: Apache-2.0 Imports: 4 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var E_DefaultHost = &proto.ExtensionDesc{
	ExtendedType:  (*descriptor.ServiceOptions)(nil),
	ExtensionType: (*string)(nil),
	Field:         1049,
	Name:          "google.api.default_host",
	Tag:           "bytes,1049,opt,name=default_host",
	Filename:      "google/api/client.proto",
}
View Source 
var E_FieldBehavior = &proto.ExtensionDesc{
	ExtendedType:  (*descriptor.FieldOptions)(nil),
	ExtensionType: ([]FieldBehavior)(nil),
	Field:         1052,
	Name:          "google.api.field_behavior",
	Tag:           "varint,1052,rep,name=field_behavior,enum=google.api.FieldBehavior",
	Filename:      "google/api/field_behavior.proto",
}
View Source 
var E_Http = &proto.ExtensionDesc{
	ExtendedType:  (*descriptor.MethodOptions)(nil),
	ExtensionType: (*HttpRule)(nil),
	Field:         72295728,
	Name:          "google.api.http",
	Tag:           "bytes,72295728,opt,name=http",
	Filename:      "google/api/annotations.proto",
}
View Source 
var E_MethodSignature = &proto.ExtensionDesc{
	ExtendedType:  (*descriptor.MethodOptions)(nil),
	ExtensionType: ([]string)(nil),
	Field:         1051,
	Name:          "google.api.method_signature",
	Tag:           "bytes,1051,rep,name=method_signature",
	Filename:      "google/api/client.proto",
}
View Source 
var E_OauthScopes = &proto.ExtensionDesc{
	ExtendedType:  (*descriptor.ServiceOptions)(nil),
	ExtensionType: (*string)(nil),
	Field:         1050,
	Name:          "google.api.oauth_scopes",
	Tag:           "bytes,1050,opt,name=oauth_scopes",
	Filename:      "google/api/client.proto",
}
View Source 
var E_Resource = &proto.ExtensionDesc{
	ExtendedType:  (*descriptor.MessageOptions)(nil),
	ExtensionType: (*ResourceDescriptor)(nil),
	Field:         1053,
	Name:          "google.api.resource",
	Tag:           "bytes,1053,opt,name=resource",
	Filename:      "google/api/resource.proto",
}
View Source 
var E_ResourceDefinition = &proto.ExtensionDesc{
	ExtendedType:  (*descriptor.FileOptions)(nil),
	ExtensionType: ([]*ResourceDescriptor)(nil),
	Field:         1053,
	Name:          "google.api.resource_definition",
	Tag:           "bytes,1053,rep,name=resource_definition",
	Filename:      "google/api/resource.proto",
}
View Source 
var E_ResourceReference = &proto.ExtensionDesc{
	ExtendedType:  (*descriptor.FieldOptions)(nil),
	ExtensionType: (*ResourceReference)(nil),
	Field:         1055,
	Name:          "google.api.resource_reference",
	Tag:           "bytes,1055,opt,name=resource_reference",
	Filename:      "google/api/resource.proto",
}
View Source 
var FieldBehavior_name = map[int32]string{
	0: "FIELD_BEHAVIOR_UNSPECIFIED",
	1: "OPTIONAL",
	2: "REQUIRED",
	3: "OUTPUT_ONLY",
	4: "INPUT_ONLY",
	5: "IMMUTABLE",
}
View Source 
var FieldBehavior_value = map[string]int32{
	"FIELD_BEHAVIOR_UNSPECIFIED": 0,
	"OPTIONAL":                   1,
	"REQUIRED":                   2,
	"OUTPUT_ONLY":                3,
	"INPUT_ONLY":                 4,
	"IMMUTABLE":                  5,
}
View Source 
var ResourceDescriptor_History_name = map[int32]string{
	0: "HISTORY_UNSPECIFIED",
	1: "ORIGINALLY_SINGLE_PATTERN",
	2: "FUTURE_MULTI_PATTERN",
}
View Source 
var ResourceDescriptor_History_value = map[string]int32{
	"HISTORY_UNSPECIFIED":       0,
	"ORIGINALLY_SINGLE_PATTERN": 1,
	"FUTURE_MULTI_PATTERN":      2,
}

Functions

This section is empty.

Types

type CustomHttpPattern 

type CustomHttpPattern struct {
	// The name of this custom HTTP verb.
	Kind string `protobuf:"bytes,1,opt,name=kind,proto3" json:"kind,omitempty"`
	// The path matched by this custom verb.
	Path                 string   `protobuf:"bytes,2,opt,name=path,proto3" json:"path,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

A custom pattern is used for defining custom HTTP verb.

func (*CustomHttpPattern) Descriptor 

func (*CustomHttpPattern) Descriptor() ([]byte, []int)

func (*CustomHttpPattern) GetKind 

func (m *CustomHttpPattern) GetKind() string

func (*CustomHttpPattern) GetPath 

func (m *CustomHttpPattern) GetPath() string

func (*CustomHttpPattern) ProtoMessage 

func (*CustomHttpPattern) ProtoMessage()

func (*CustomHttpPattern) Reset 

func (m *CustomHttpPattern) Reset()

func (*CustomHttpPattern) String 

func (m *CustomHttpPattern) String() string

func (*CustomHttpPattern) XXX_DiscardUnknown 

func (m *CustomHttpPattern) XXX_DiscardUnknown()

func (*CustomHttpPattern) XXX_Marshal 

func (m *CustomHttpPattern) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*CustomHttpPattern) XXX_Merge 

func (m *CustomHttpPattern) XXX_Merge(src proto.Message)

func (*CustomHttpPattern) XXX_Size 

func (m *CustomHttpPattern) XXX_Size() int

func (*CustomHttpPattern) XXX_Unmarshal 

func (m *CustomHttpPattern) XXX_Unmarshal(b []byte) error

type FieldBehavior 

type FieldBehavior int32

An indicator of the behavior of a given field (for example, that a field is required in requests, or given as output but ignored as input). This **does not** change the behavior in protocol buffers itself; it only denotes the behavior and may affect how API tooling handles the field.

Note: This enum **may** receive new values in the future. 

const (
	// Conventional default for enums. Do not use this.
	FieldBehavior_FIELD_BEHAVIOR_UNSPECIFIED FieldBehavior = 0
	// Specifically denotes a field as optional.
	// While all fields in protocol buffers are optional, this may be specified
	// for emphasis if appropriate.
	FieldBehavior_OPTIONAL FieldBehavior = 1
	// Denotes a field as required.
	// This indicates that the field **must** be provided as part of the request,
	// and failure to do so will cause an error (usually `INVALID_ARGUMENT`).
	FieldBehavior_REQUIRED FieldBehavior = 2
	// Denotes a field as output only.
	// This indicates that the field is provided in responses, but including the
	// field in a request does nothing (the server *must* ignore it and
	// *must not* throw an error as a result of the field's presence).
	FieldBehavior_OUTPUT_ONLY FieldBehavior = 3
	// Denotes a field as input only.
	// This indicates that the field is provided in requests, and the
	// corresponding field is not included in output.
	FieldBehavior_INPUT_ONLY FieldBehavior = 4
	// Denotes a field as immutable.
	// This indicates that the field may be set once in a request to create a
	// resource, but may not be changed thereafter.
	FieldBehavior_IMMUTABLE FieldBehavior = 5
)

func (FieldBehavior) EnumDescriptor 

func (FieldBehavior) EnumDescriptor() ([]byte, []int)

func (FieldBehavior) String 

func (x FieldBehavior) String() string

type Http 

type Http struct {
	// A list of HTTP configuration rules that apply to individual API methods.
	//
	// **NOTE:** All service configuration rules follow "last one wins" order.
	Rules []*HttpRule `protobuf:"bytes,1,rep,name=rules,proto3" json:"rules,omitempty"`
	// When set to true, URL path parameters will be fully URI-decoded except in
	// cases of single segment matches in reserved expansion, where "%2F" will be
	// left encoded.
	//
	// The default behavior is to not decode RFC 6570 reserved characters in multi
	// segment matches.
	FullyDecodeReservedExpansion bool     `` /* 150-byte string literal not displayed */
	XXX_NoUnkeyedLiteral         struct{} `json:"-"`
	XXX_unrecognized             []byte   `json:"-"`
	XXX_sizecache                int32    `json:"-"`
}

Defines the HTTP configuration for an API service. It contains a list of HttpRule[google.api.HttpRule], each specifying the mapping of an RPC method to one or more HTTP REST API methods.

func (*Http) Descriptor 

func (*Http) Descriptor() ([]byte, []int)

func (*Http) GetFullyDecodeReservedExpansion 

func (m *Http) GetFullyDecodeReservedExpansion() bool

func (*Http) GetRules 

func (m *Http) GetRules() []*HttpRule

func (*Http) ProtoMessage 

func (*Http) ProtoMessage()

func (*Http) Reset 

func (m *Http) Reset()

func (*Http) String 

func (m *Http) String() string

func (*Http) XXX_DiscardUnknown 

func (m *Http) XXX_DiscardUnknown()

func (*Http) XXX_Marshal 

func (m *Http) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*Http) XXX_Merge 

func (m *Http) XXX_Merge(src proto.Message)

func (*Http) XXX_Size 

func (m *Http) XXX_Size() int

func (*Http) XXX_Unmarshal 

func (m *Http) XXX_Unmarshal(b []byte) error

type HttpRule 

type HttpRule struct {
	// Selects a method to which this rule applies.
	//
	// Refer to [selector][google.api.DocumentationRule.selector] for syntax details.
	Selector string `protobuf:"bytes,1,opt,name=selector,proto3" json:"selector,omitempty"`
	// 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 request
	// body, or `*` for mapping all request fields not captured by the path
	// pattern to the HTTP body, or omitted for not having any HTTP request body.
	//
	// NOTE: the referred field must be present at the top-level of the request
	// message type.
	Body string `protobuf:"bytes,7,opt,name=body,proto3" json:"body,omitempty"`
	// Optional. The name of the response field whose value is mapped to the HTTP
	// response body. When omitted, the entire response message will be used
	// as the HTTP response body.
	//
	// NOTE: The referred field must be present at the top-level of the response
	// message type.
	ResponseBody string `protobuf:"bytes,12,opt,name=response_body,json=responseBody,proto3" json:"response_body,omitempty"`
	// Additional HTTP bindings for the selector. Nested bindings must
	// not contain an `additional_bindings` field themselves (that is,
	// the nesting may only be one level deep).
	AdditionalBindings   []*HttpRule `protobuf:"bytes,11,rep,name=additional_bindings,json=additionalBindings,proto3" json:"additional_bindings,omitempty"`
	XXX_NoUnkeyedLiteral struct{}    `json:"-"`
	XXX_unrecognized     []byte      `json:"-"`
	XXX_sizecache        int32       `json:"-"`
}

gRPC Transcoding

gRPC Transcoding is a feature for mapping between a gRPC method and one or more HTTP REST endpoints. It allows developers to build a single API service that supports both gRPC APIs and REST APIs. Many systems, including [Google APIs](https://github.com/googleapis/googleapis), [Cloud Endpoints](https://cloud.google.com/endpoints), [gRPC Gateway](https://github.com/grpc-ecosystem/grpc-gateway), and [Envoy](https://github.com/envoyproxy/envoy) proxy support this feature and use it for large scale production services.

`HttpRule` defines the schema of the gRPC/REST mapping. The mapping specifies how different portions of the gRPC request message are mapped to the URL path, URL query parameters, and HTTP request body. It also controls how the gRPC response message is mapped to the HTTP response body. `HttpRule` is typically specified as an `google.api.http` annotation on the gRPC method.

Each mapping specifies a URL path template and an HTTP method. The path template may refer to one or more fields in the gRPC request message, as long as each field is a non-repeated field with a primitive (non-message) type. The path template controls how fields of the request message are mapped to the URL path.

Example: 

service Messaging {
  rpc GetMessage(GetMessageRequest) returns (Message) {
    option (google.api.http) = {
        get: "/v1/{name=messages/*}"
    };
  }
}
message GetMessageRequest {
  string name = 1; // Mapped to URL path.
}
message Message {
  string text = 1; // The resource content.
}

This enables an HTTP REST to gRPC mapping as below:

HTTP | gRPC -----|----- `GET /v1/messages/123456` | `GetMessage(name: "messages/123456")`

Any fields in the request message which are not bound by the path template automatically become HTTP query parameters if there is no HTTP request body. For example: 

service Messaging {
  rpc GetMessage(GetMessageRequest) returns (Message) {
    option (google.api.http) = {
        get:"/v1/messages/{message_id}"
    };
  }
}
message GetMessageRequest {
  message SubMessage {
    string subfield = 1;
  }
  string message_id = 1; // Mapped to URL path.
  int64 revision = 2;    // Mapped to URL query parameter `revision`.
  SubMessage sub = 3;    // Mapped to URL query parameter `sub.subfield`.
}

This enables a HTTP JSON to RPC mapping as below:

HTTP | gRPC -----|----- `GET /v1/messages/123456?revision=2&sub.subfield=foo` | `GetMessage(message_id: "123456" revision: 2 sub: SubMessage(subfield: "foo"))`

Note that fields which are mapped to URL query parameters must have a primitive type or a repeated primitive type or a non-repeated message type. In the case of a repeated type, the parameter can be repeated in the URL as `...?param=A&param=B`. In the case of a message type, each field of the message is mapped to a separate parameter, such as `...?foo.a=A&foo.b=B&foo.c=C`.

For HTTP methods that allow a request body, the `body` field specifies the mapping. Consider a REST update method on the message resource collection: 

service Messaging {
  rpc UpdateMessage(UpdateMessageRequest) returns (Message) {
    option (google.api.http) = {
      patch: "/v1/messages/{message_id}"
      body: "message"
    };
  }
}
message UpdateMessageRequest {
  string message_id = 1; // mapped to the URL
  Message message = 2;   // mapped to the body
}

The following HTTP JSON to RPC mapping is enabled, where the representation of the JSON in the request body is determined by protos JSON encoding:

HTTP | gRPC -----|----- `PATCH /v1/messages/123456 { "text": "Hi!" }` | `UpdateMessage(message_id: "123456" message { text: "Hi!" })`

The special name `*` can be used in the body mapping to define that every field not bound by the path template should be mapped to the request body. This enables the following alternative definition of the update method: 

service Messaging {
  rpc UpdateMessage(Message) returns (Message) {
    option (google.api.http) = {
      patch: "/v1/messages/{message_id}"
      body: "*"
    };
  }
}
message Message {
  string message_id = 1;
  string text = 2;
}

The following HTTP JSON to RPC mapping is enabled:

HTTP | gRPC -----|----- `PATCH /v1/messages/123456 { "text": "Hi!" }` | `UpdateMessage(message_id: "123456" text: "Hi!")`

Note that when using `*` in the body mapping, it is not possible to have HTTP parameters, as all fields not bound by the path end in the body. This makes this option more rarely used in practice when defining REST APIs. The common usage of `*` is in custom methods which don't use the URL at all for transferring data.

It is possible to define multiple HTTP methods for one RPC by using the `additional_bindings` option. Example: 

service Messaging {
  rpc GetMessage(GetMessageRequest) returns (Message) {
    option (google.api.http) = {
      get: "/v1/messages/{message_id}"
      additional_bindings {
        get: "/v1/users/{user_id}/messages/{message_id}"
      }
    };
  }
}
message GetMessageRequest {
  string message_id = 1;
  string user_id = 2;
}

This enables the following two alternative HTTP JSON to RPC mappings:

HTTP | gRPC -----|----- `GET /v1/messages/123456` | `GetMessage(message_id: "123456")` `GET /v1/users/me/messages/123456` | `GetMessage(user_id: "me" message_id: "123456")`

## Rules for HTTP mapping

  1. Leaf request fields (recursive expansion nested messages in the request message) are classified into three categories: - Fields referred by the path template. They are passed via the URL path. - Fields referred by the [HttpRule.body][google.api.HttpRule.body]. They are passed via the HTTP request body. - All other fields are passed via the URL query parameters, and the parameter name is the field path in the request message. A repeated field can be represented as multiple query parameters under the same name.
  2. If [HttpRule.body][google.api.HttpRule.body] is "*", there is no URL query parameter, all fields are passed via URL path and HTTP request body.
  3. If [HttpRule.body][google.api.HttpRule.body] is omitted, there is no HTTP request body, all fields are passed via URL path and URL query parameters.

### Path template syntax 

Template = "/" Segments [ Verb ] ;
Segments = Segment { "/" Segment } ;
Segment  = "*" | "**" | LITERAL | Variable ;
Variable = "{" FieldPath [ "=" Segments ] "}" ;
FieldPath = IDENT { "." IDENT } ;
Verb     = ":" LITERAL ;

The syntax `*` matches a single URL path segment. The syntax `**` matches zero or more URL path segments, which must be the last part of the URL path except the `Verb`.

The syntax `Variable` matches part of the URL path as specified by its template. A variable template must not contain other variables. If a variable matches a single path segment, its template may be omitted, e.g. `{var}` is equivalent to `{var=*}`.

The syntax `LITERAL` matches literal text in the URL path. If the `LITERAL` contains any reserved character, such characters should be percent-encoded before the matching.

If a variable contains exactly one path segment, such as `"{var}"` or `"{var=*}"`, when such a variable is expanded into a URL path on the client side, all characters except `[-_.~0-9a-zA-Z]` are percent-encoded. The server side does the reverse decoding. Such variables show up in the [Discovery Document](https://developers.google.com/discovery/v1/reference/apis) as `{var}`.

If a variable contains multiple path segments, such as `"{var=foo/*}"` or `"{var=**}"`, when such a variable is expanded into a URL path on the client side, all characters except `[-_.~/0-9a-zA-Z]` are percent-encoded. The server side does the reverse decoding, except "%2F" and "%2f" are left unchanged. Such variables show up in the [Discovery Document](https://developers.google.com/discovery/v1/reference/apis) as `{+var}`.

## Using gRPC API Service Configuration

gRPC API Service Configuration (service config) is a configuration language for configuring a gRPC service to become a user-facing product. The service config is simply the YAML representation of the `google.api.Service` proto message.

As an alternative to annotating your proto file, you can configure gRPC transcoding in your service config YAML files. You do this by specifying a `HttpRule` that maps the gRPC method to a REST endpoint, achieving the same effect as the proto annotation. This can be particularly useful if you have a proto that is reused in multiple services. Note that any transcoding specified in the service config will override any matching transcoding configuration in the proto.

Example: 

http:
  rules:
    # Selects a gRPC method and applies HttpRule to it.
    - selector: example.v1.Messaging.GetMessage
      get: /v1/messages/{message_id}/{sub.subfield}

## Special notes

When gRPC Transcoding is used to map a gRPC to JSON REST endpoints, the proto to JSON conversion must follow the [proto3 specification](https://developers.google.com/protocol-buffers/docs/proto3#json).

While the single segment variable follows the semantics of [RFC 6570](https://tools.ietf.org/html/rfc6570) Section 3.2.2 Simple String Expansion, the multi segment variable **does not** follow RFC 6570 Section 3.2.3 Reserved Expansion. The reason is that the Reserved Expansion does not expand special characters like `?` and `#`, which would lead to invalid URLs. As the result, gRPC Transcoding uses a custom encoding for multi segment variables.

The path variables **must not** refer to any repeated or mapped field, because client libraries are not capable of handling such variable expansion.

The path variables **must not** capture the leading "/" character. The reason is that the most common use case "{var}" does not capture the leading "/" character. For consistency, all path variables must share the same behavior.

Repeated message fields must not be mapped to URL query parameters, because no client library can support such complicated mapping.

If an API needs to use a JSON array for request or response body, it can map the request or response body to a repeated field. However, some gRPC Transcoding implementations may not support this feature.

func (*HttpRule) Descriptor 

func (*HttpRule) Descriptor() ([]byte, []int)

func (*HttpRule) GetAdditionalBindings 

func (m *HttpRule) GetAdditionalBindings() []*HttpRule

func (*HttpRule) GetBody 

func (m *HttpRule) GetBody() string

func (*HttpRule) GetCustom 

func (m *HttpRule) GetCustom() *CustomHttpPattern

func (*HttpRule) GetDelete 

func (m *HttpRule) GetDelete() string

func (*HttpRule) GetGet 

func (m *HttpRule) GetGet() string

func (*HttpRule) GetPatch 

func (m *HttpRule) GetPatch() string

func (*HttpRule) GetPattern 

func (m *HttpRule) GetPattern() isHttpRule_Pattern

func (*HttpRule) GetPost 

func (m *HttpRule) GetPost() string

func (*HttpRule) GetPut 

func (m *HttpRule) GetPut() string

func (*HttpRule) GetResponseBody 

func (m *HttpRule) GetResponseBody() string

func (*HttpRule) GetSelector 

func (m *HttpRule) GetSelector() string

func (*HttpRule) ProtoMessage 

func (*HttpRule) ProtoMessage()

func (*HttpRule) Reset 

func (m *HttpRule) Reset()

func (*HttpRule) String 

func (m *HttpRule) String() string

func (*HttpRule) XXX_DiscardUnknown 

func (m *HttpRule) XXX_DiscardUnknown()

func (*HttpRule) XXX_Marshal 

func (m *HttpRule) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*HttpRule) XXX_Merge 

func (m *HttpRule) XXX_Merge(src proto.Message)

func (*HttpRule) XXX_OneofWrappers 

func (*HttpRule) XXX_OneofWrappers() []interface{}

XXX_OneofWrappers is for the internal use of the proto package.

func (*HttpRule) XXX_Size 

func (m *HttpRule) XXX_Size() int

func (*HttpRule) XXX_Unmarshal 

func (m *HttpRule) XXX_Unmarshal(b []byte) error

type HttpRule_Custom 

type HttpRule_Custom struct {
	Custom *CustomHttpPattern `protobuf:"bytes,8,opt,name=custom,proto3,oneof"`
}

type HttpRule_Delete 

type HttpRule_Delete struct {
	Delete string `protobuf:"bytes,5,opt,name=delete,proto3,oneof"`
}

type HttpRule_Get 

type HttpRule_Get struct {
	Get string `protobuf:"bytes,2,opt,name=get,proto3,oneof"`
}

type HttpRule_Patch 

type HttpRule_Patch struct {
	Patch string `protobuf:"bytes,6,opt,name=patch,proto3,oneof"`
}

type HttpRule_Post 

type HttpRule_Post struct {
	Post string `protobuf:"bytes,4,opt,name=post,proto3,oneof"`
}

type HttpRule_Put 

type HttpRule_Put struct {
	Put string `protobuf:"bytes,3,opt,name=put,proto3,oneof"`
}

type ResourceDescriptor 

type ResourceDescriptor struct {
	// The resource type. It must be in the format of
	// {service_name}/{resource_type_kind}. The `resource_type_kind` must be
	// singular and must not include version numbers.
	//
	// Example: `storage.googleapis.com/Bucket`
	//
	// The value of the resource_type_kind must follow the regular expression
	// /[A-Za-z][a-zA-Z0-9]+/. It should start with an upper case character and
	// should use PascalCase (UpperCamelCase). The maximum number of
	// characters allowed for the `resource_type_kind` is 100.
	Type string `protobuf:"bytes,1,opt,name=type,proto3" json:"type,omitempty"`
	// Optional. The relative resource name pattern associated with this resource
	// type. The DNS prefix of the full resource name shouldn't be specified here.
	//
	// The path pattern must follow the syntax, which aligns with HTTP binding
	// syntax:
	//
	//     Template = Segment { "/" Segment } ;
	//     Segment = LITERAL | Variable ;
	//     Variable = "{" LITERAL "}" ;
	//
	// Examples:
	//
	//     - "projects/{project}/topics/{topic}"
	//     - "projects/{project}/knowledgeBases/{knowledge_base}"
	//
	// The components in braces correspond to the IDs for each resource in the
	// hierarchy. It is expected that, if multiple patterns are provided,
	// the same component name (e.g. "project") refers to IDs of the same
	// type of resource.
	Pattern []string `protobuf:"bytes,2,rep,name=pattern,proto3" json:"pattern,omitempty"`
	// Optional. The field on the resource that designates the resource name
	// field. If omitted, this is assumed to be "name".
	NameField string `protobuf:"bytes,3,opt,name=name_field,json=nameField,proto3" json:"name_field,omitempty"`
	// Optional. The historical or future-looking state of the resource pattern.
	//
	// Example:
	//
	//     // The InspectTemplate message originally only supported resource
	//     // names with organization, and project was added later.
	//     message InspectTemplate {
	//       option (google.api.resource) = {
	//         type: "dlp.googleapis.com/InspectTemplate"
	//         pattern:
	//         "organizations/{organization}/inspectTemplates/{inspect_template}"
	//         pattern: "projects/{project}/inspectTemplates/{inspect_template}"
	//         history: ORIGINALLY_SINGLE_PATTERN
	//       };
	//     }
	History ResourceDescriptor_History `protobuf:"varint,4,opt,name=history,proto3,enum=google.api.ResourceDescriptor_History" json:"history,omitempty"`
	// The plural name used in the resource name, such as 'projects' for
	// the name of 'projects/{project}'. It is the same concept of the `plural`
	// field in k8s CRD spec
	// https://kubernetes.io/docs/tasks/access-kubernetes-api/custom-resources/custom-resource-definitions/
	Plural string `protobuf:"bytes,5,opt,name=plural,proto3" json:"plural,omitempty"`
	// The same concept of the `singular` field in k8s CRD spec
	// https://kubernetes.io/docs/tasks/access-kubernetes-api/custom-resources/custom-resource-definitions/
	// Such as "project" for the `resourcemanager.googleapis.com/Project` type.
	Singular             string   `protobuf:"bytes,6,opt,name=singular,proto3" json:"singular,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

A simple descriptor of a resource type.

ResourceDescriptor annotates a resource message (either by means of a protobuf annotation or use in the service config), and associates the resource's schema, the resource type, and the pattern of the resource name.

Example: 

message Topic {
  // Indicates this message defines a resource schema.
  // Declares the resource type in the format of {service}/{kind}.
  // For Kubernetes resources, the format is {api group}/{kind}.
  option (google.api.resource) = {
    type: "pubsub.googleapis.com/Topic"
    name_descriptor: {
      pattern: "projects/{project}/topics/{topic}"
      parent_type: "cloudresourcemanager.googleapis.com/Project"
      parent_name_extractor: "projects/{project}"
    }
  };
}

The ResourceDescriptor Yaml config will look like: 

resources:
- type: "pubsub.googleapis.com/Topic"
  name_descriptor:
    - pattern: "projects/{project}/topics/{topic}"
      parent_type: "cloudresourcemanager.googleapis.com/Project"
      parent_name_extractor: "projects/{project}"

Sometimes, resources have multiple patterns, typically because they can live under multiple parents.

Example: 

message LogEntry {
  option (google.api.resource) = {
    type: "logging.googleapis.com/LogEntry"
    name_descriptor: {
      pattern: "projects/{project}/logs/{log}"
      parent_type: "cloudresourcemanager.googleapis.com/Project"
      parent_name_extractor: "projects/{project}"
    }
    name_descriptor: {
      pattern: "folders/{folder}/logs/{log}"
      parent_type: "cloudresourcemanager.googleapis.com/Folder"
      parent_name_extractor: "folders/{folder}"
    }
    name_descriptor: {
      pattern: "organizations/{organization}/logs/{log}"
      parent_type: "cloudresourcemanager.googleapis.com/Organization"
      parent_name_extractor: "organizations/{organization}"
    }
    name_descriptor: {
      pattern: "billingAccounts/{billing_account}/logs/{log}"
      parent_type: "billing.googleapis.com/BillingAccount"
      parent_name_extractor: "billingAccounts/{billing_account}"
    }
  };
}

The ResourceDescriptor Yaml config will look like: 

resources:
- type: 'logging.googleapis.com/LogEntry'
  name_descriptor:
    - pattern: "projects/{project}/logs/{log}"
      parent_type: "cloudresourcemanager.googleapis.com/Project"
      parent_name_extractor: "projects/{project}"
    - pattern: "folders/{folder}/logs/{log}"
      parent_type: "cloudresourcemanager.googleapis.com/Folder"
      parent_name_extractor: "folders/{folder}"
    - pattern: "organizations/{organization}/logs/{log}"
      parent_type: "cloudresourcemanager.googleapis.com/Organization"
      parent_name_extractor: "organizations/{organization}"
    - pattern: "billingAccounts/{billing_account}/logs/{log}"
      parent_type: "billing.googleapis.com/BillingAccount"
      parent_name_extractor: "billingAccounts/{billing_account}"

For flexible resources, the resource name doesn't contain parent names, but the resource itself has parents for policy evaluation.

Example: 

message Shelf {
  option (google.api.resource) = {
    type: "library.googleapis.com/Shelf"
    name_descriptor: {
      pattern: "shelves/{shelf}"
      parent_type: "cloudresourcemanager.googleapis.com/Project"
    }
    name_descriptor: {
      pattern: "shelves/{shelf}"
      parent_type: "cloudresourcemanager.googleapis.com/Folder"
    }
  };
}

The ResourceDescriptor Yaml config will look like: 

resources:
- type: 'library.googleapis.com/Shelf'
  name_descriptor:
    - pattern: "shelves/{shelf}"
      parent_type: "cloudresourcemanager.googleapis.com/Project"
    - pattern: "shelves/{shelf}"
      parent_type: "cloudresourcemanager.googleapis.com/Folder"

func (*ResourceDescriptor) Descriptor 

func (*ResourceDescriptor) Descriptor() ([]byte, []int)

func (*ResourceDescriptor) GetHistory 

func (m *ResourceDescriptor) GetHistory() ResourceDescriptor_History

func (*ResourceDescriptor) GetNameField 

func (m *ResourceDescriptor) GetNameField() string

func (*ResourceDescriptor) GetPattern 

func (m *ResourceDescriptor) GetPattern() []string

func (*ResourceDescriptor) GetPlural 

func (m *ResourceDescriptor) GetPlural() string

func (*ResourceDescriptor) GetSingular 

func (m *ResourceDescriptor) GetSingular() string

func (*ResourceDescriptor) GetType 

func (m *ResourceDescriptor) GetType() string

func (*ResourceDescriptor) ProtoMessage 

func (*ResourceDescriptor) ProtoMessage()

func (*ResourceDescriptor) Reset 

func (m *ResourceDescriptor) Reset()

func (*ResourceDescriptor) String 

func (m *ResourceDescriptor) String() string

func (*ResourceDescriptor) XXX_DiscardUnknown 

func (m *ResourceDescriptor) XXX_DiscardUnknown()

func (*ResourceDescriptor) XXX_Marshal 

func (m *ResourceDescriptor) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*ResourceDescriptor) XXX_Merge 

func (m *ResourceDescriptor) XXX_Merge(src proto.Message)

func (*ResourceDescriptor) XXX_Size 

func (m *ResourceDescriptor) XXX_Size() int

func (*ResourceDescriptor) XXX_Unmarshal 

func (m *ResourceDescriptor) XXX_Unmarshal(b []byte) error

type ResourceDescriptor_History 

type ResourceDescriptor_History int32

A description of the historical or future-looking state of the resource pattern. 

const (
	// The "unset" value.
	ResourceDescriptor_HISTORY_UNSPECIFIED ResourceDescriptor_History = 0
	// The resource originally had one pattern and launched as such, and
	// additional patterns were added later.
	ResourceDescriptor_ORIGINALLY_SINGLE_PATTERN ResourceDescriptor_History = 1
	// The resource has one pattern, but the API owner expects to add more
	// later. (This is the inverse of ORIGINALLY_SINGLE_PATTERN, and prevents
	// that from being necessary once there are multiple patterns.)
	ResourceDescriptor_FUTURE_MULTI_PATTERN ResourceDescriptor_History = 2
)

func (ResourceDescriptor_History) EnumDescriptor 

func (ResourceDescriptor_History) EnumDescriptor() ([]byte, []int)

func (ResourceDescriptor_History) String 

func (x ResourceDescriptor_History) String() string

type ResourceReference 

type ResourceReference struct {
	// The resource type that the annotated field references.
	//
	// Example:
	//
	//     message Subscription {
	//       string topic = 2 [(google.api.resource_reference) = {
	//         type: "pubsub.googleapis.com/Topic"
	//       }];
	//     }
	Type string `protobuf:"bytes,1,opt,name=type,proto3" json:"type,omitempty"`
	// The resource type of a child collection that the annotated field
	// references. This is useful for annotating the `parent` field that
	// doesn't have a fixed resource type.
	//
	// Example:
	//
	//     message ListLogEntriesRequest {
	//       string parent = 1 [(google.api.resource_reference) = {
	//         child_type: "logging.googleapis.com/LogEntry"
	//       };
	//     }
	ChildType            string   `protobuf:"bytes,2,opt,name=child_type,json=childType,proto3" json:"child_type,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

Defines a proto annotation that describes a string field that refers to an API resource.

func (*ResourceReference) Descriptor 

func (*ResourceReference) Descriptor() ([]byte, []int)

func (*ResourceReference) GetChildType 

func (m *ResourceReference) GetChildType() string

func (*ResourceReference) GetType 

func (m *ResourceReference) GetType() string

func (*ResourceReference) ProtoMessage 

func (*ResourceReference) ProtoMessage()

func (*ResourceReference) Reset 

func (m *ResourceReference) Reset()

func (*ResourceReference) String 

func (m *ResourceReference) String() string

func (*ResourceReference) XXX_DiscardUnknown 

func (m *ResourceReference) XXX_DiscardUnknown()

func (*ResourceReference) XXX_Marshal 

func (m *ResourceReference) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*ResourceReference) XXX_Merge 

func (m *ResourceReference) XXX_Merge(src proto.Message)

func (*ResourceReference) XXX_Size 

func (m *ResourceReference) XXX_Size() int

func (*ResourceReference) XXX_Unmarshal 

func (m *ResourceReference) XXX_Unmarshal(b []byte) error

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