AttributeContext

This message defines the standard attribute vocabulary for Google APIs.

An attribute is a piece of metadata that describes an activity on a network service. For example, the size of an HTTP request, or the status code of an HTTP response.

Each attribute has a type and a name, which is logically defined as a proto message field in AttributeContext. The field type becomes the attribute type, and the field path becomes the attribute name. For example, the attribute source.ip maps to field AttributeContext.source.ip.

This message definition is guaranteed not to have any wire breaking change. So you can use it directly for passing attributes across different systems.

NOTE: Different system may generate different subset of attributes. Please verify the system specification before relying on an attribute generated a system.

JSON representation 
{
  "origin": {
    object (Peer)
  },
  "source": {
    object (Peer)
  },
  "destination": {
    object (Peer)
  },
  "request": {
    object (Request)
  },
  "response": {
    object (Response)
  },
  "resource": {
    object (Resource)
  },
  "api": {
    object (Api)
  },
  "extensions": [
    {
      "@type": string,
      field1: ...,
      ...
    }
  ]
}
Fields
origin

object (Peer)

The origin of a network activity. In a multi hop network activity, the origin represents the sender of the first hop. For the first hop, the source and the origin must have the same content.
source

object (Peer)

The source of a network activity, such as starting a TCP connection. In a multi hop network activity, the source represents the sender of the last hop.
destination

object (Peer)

The destination of a network activity, such as accepting a TCP connection. In a multi hop network activity, the destination represents the receiver of the last hop.
request

object (Request)

Represents a network request, such as an HTTP request.
response

object (Response)

Represents a network response, such as an HTTP response.
resource

object (Resource)

Represents a target resource that is involved with a network activity. If multiple resources are involved with an activity, this must be the primary one.
api

object (Api)

Represents an API operation that is involved to a network activity.
extensions[]

object

Supports extensions for advanced use cases, such as logs and metrics.

An object containing fields of an arbitrary type. An additional field "@type" contains a URI identifying the type. Example: { "id": 1234, "@type": "types.example.com/standard/id" }.

Response

This message defines attributes for a typical network response. It generally models semantics of an HTTP response.

JSON representation 
{
  "code": string,
  "size": string,
  "headers": {
    string: string,
    ...
  },
  "time": string
}
Fields
code

string (int64 format)

The HTTP response status code, such as 200 and 404.
size

string (int64 format)

The HTTP response size in bytes. If unknown, it must be -1.
headers

map (key: string, value: string)

The HTTP response headers. If multiple headers share the same key, they must be merged according to HTTP spec. All header keys must be lowercased, because HTTP header keys are case-insensitive.

An object containing a list of "key": value pairs. Example: { "name": "wrench", "mass": "1.3kg", "count": "3" }.
time

string (Timestamp format)

The timestamp when the destination service generates the first byte of the response.

A timestamp in RFC3339 UTC "Zulu" format, with nanosecond resolution and up to nine fractional digits. Examples: "2014-10-02T15:01:23Z" and "2014-10-02T15:01:23.045123456Z".

Api

This message defines attributes associated with API operations, such as a network API request. The terminology is based on the conventions used by Google APIs, Istio, and OpenAPI.

JSON representation 
{
  "service": string,
  "operation": string,
  "protocol": string,
  "version": string
}
Fields
service

string

The API service name. It is a logical identifier for a networked API, such as "pubsub.googleapis.com". The naming syntax depends on the API management system being used for handling the request.
operation

string

The API operation name. For gRPC requests, it is the fully qualified API method name, such as "google.pubsub.v1.Publisher.Publish". For OpenAPI requests, it is the operationId, such as "getPet".
protocol

string

The API protocol used for sending the request, such as "http", "https", "grpc", or "internal".
version

string

The API version associated with the API operation above, such as "v1" or "v1alpha1".