BillingView

Message for reporting billing requests through Eventstream.

JSON representation 
{
  "reportRequests": [
    {
      object (ReportRequest)
    }
  ]
}
Fields
reportRequests[]

object (ReportRequest)

Billing requests to be reported for cloud.eventstream.v2.ResourceEvent

Each request contains billing operations to be reported under a service name. See go/billing-view-construction for documentation on constructing billing view report requests.

ReportRequest

Request message for the services.report method.

JSON representation 
{
  "serviceName": string,
  "operations": [
    {
      object (Operation)
    }
  ],
  "serviceConfigId": string
}
Fields
serviceName

string

The service name as specified in its service configuration. For example, "pubsub.googleapis.com".

See google.api.Service for the definition of a service name.
operations[]

object (Operation)

Operations to be reported.

Typically the service should report one operation per request. Putting multiple operations into a single request is allowed, but should be used only when multiple operations are natually available at the time of the report.

There is no limit on the number of operations in the same ReportRequest, however the ReportRequest size should be no larger than 1MB. See ReportResponse.report_errors for partial failure behavior.
serviceConfigId

string

Specifies which version of service config should be used to process the request.

If unspecified or no matching version can be found, the latest one will be used.

Operation

Represents information regarding an operation.

JSON representation 
{
  "operationId": string,
  "operationName": string,
  "consumerId": string,
  "startTime": string,
  "endTime": string,
  "labels": {
    string: string,
    ...
  },
  "metricValueSets": [
    {
      object (MetricValueSet)
    }
  ],
  "logEntries": [
    {
      object (LogEntry)
    }
  ],
  "quotaProperties": {
    object (QuotaProperties)
  },
  "importance": enum (Importance),
  "userLabels": {
    string: string,
    ...
  },
  "resources": [
    {
      object (ResourceInfo)
    }
  ],
  "traceSpans": [
    {
      object (TraceSpan)
    }
  ],
  "extensions": [
    {
      "@type": string,
      field1: ...,
      ...
    }
  ]
}
Fields
operationId

string

Identity of the operation. This must be unique within the scope of the service that generated the operation. If the service calls services.check() and services.report() on the same operation, the two calls should carry the same id.

UUID version 4 is recommended, though not required. In scenarios where an operation is computed from existing information and an idempotent id is desirable for deduplication purpose, UUID version 5 is recommended. See RFC 4122 for details.
operationName

string

Fully qualified name of the operation. Reserved for future use.
consumerId

string

Identity of the consumer who is using the service. This field should be filled in for the operations initiated by a consumer, but not for service-initiated operations that are not related to a specific consumer.

  • This can be in one of the following formats:
    • project:PROJECT_ID,
    • project_number:PROJECT_NUMBER,
    • projects/PROJECT_ID or PROJECT_NUMBER,
    • folders/FOLDER_NUMBER,
    • organizations/ORGANIZATION_NUMBER,
    • api_key:API_KEY.
startTime

string (Timestamp format)

Required. Start time of the operation.

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".
endTime

string (Timestamp format)

End time of the operation. Required when the operation is used in ServiceController.Report, but optional when the operation is used in ServiceController.Check.

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".
labels

map (key: string, value: string)

Labels describing the operation. Only the following labels are allowed:

  • Labels describing monitored resources as defined in the service configuration.
  • Default labels of metric values. When specified, labels defined in the metric value override these default.
  • The following labels defined by Google Cloud Platform:
    • cloud.googleapis.com/location describing the location where the operation happened,
    • servicecontrol.googleapis.com/userAgent describing the user agent of the API request,
    • servicecontrol.googleapis.com/service_agent describing the service used to handle the API request (e.g. ESP),
    • servicecontrol.googleapis.com/platform describing the platform where the API is served, such as App Engine, Compute Engine, or Kubernetes Engine.

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

object (MetricValueSet)

Represents information about this operation. Each MetricValueSet corresponds to a metric defined in the service configuration. The data type used in the MetricValueSet must agree with the data type specified in the metric definition.

Within a single operation, it is not allowed to have more than one MetricValue instances that have the same metric names and identical label value combinations. If a request has such duplicated MetricValue instances, the entire request is rejected with an invalid argument error.
logEntries[]

object (LogEntry)

Represents information to be logged.
quotaProperties

object (QuotaProperties)

Represents the properties needed for quota check. Applicable only if this operation is for a quota check request. If this is not specified, no quota check will be performed.
importance

enum (Importance)

DO NOT USE. This is an experimental field.
userLabels

map (key: string, value: string)

User defined labels for the resource that this operation is associated with. Only a combination of 1000 user labels per consumer project are allowed.

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

object (ResourceInfo)

The resources that are involved in the operation. The maximum supported number of entries in this field is 100.
traceSpans[]

object (TraceSpan)

Unimplemented. A list of Cloud Trace spans. The span names shall contain the id of the destination project which can be either the produce or the consumer project.
extensions[]

object

Unimplemented.

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" }.

MetricValueSet

Represents a set of metric values in the same metric. Each metric value in the set should have a unique combination of start time, end time, and label values.

JSON representation 
{
  "metricName": string,
  "metricValues": [
    {
      object (MetricValue)
    }
  ]
}
Fields
metricName

string

The metric name defined in the service configuration.
metricValues[]

object (MetricValue)

The values in this metric.

MetricValue

Represents a single metric value.

JSON representation 
{
  "labels": {
    string: string,
    ...
  },
  "startTime": string,
  "endTime": string,

  // Union field value can be only one of the following:
  "boolValue": boolean,
  "int64Value": string,
  "doubleValue": number,
  "stringValue": string,
  "distributionValue": {
    object (Distribution)
  },
  "moneyValue": {
    object (Money)
  }
  // End of list of possible types for union field value.
}
Fields
labels

map (key: string, value: string)

The labels describing the metric value. See comments on google.api.servicecontrol.v1.Operation.labels for the overriding relationship. Note that this map must not contain monitored resource labels.

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

string (Timestamp format)

The start of the time period over which this metric value's measurement applies. The time period has different semantics for different metric types (cumulative, delta, and gauge). See the metric definition documentation in the service configuration for details. If not specified, google.api.servicecontrol.v1.Operation.start_time will be used.

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".
endTime

string (Timestamp format)

The end of the time period over which this metric value's measurement applies. If not specified, google.api.servicecontrol.v1.Operation.end_time will be used.

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".
Union field value. The value. The type of value used in the request must agree with the metric definition in the service configuration, otherwise the MetricValue is rejected. value can be only one of the following:
boolValue

boolean

A boolean value.
int64Value

string (int64 format)

A signed 64-bit integer value.
doubleValue

number

A double precision floating point value.
stringValue

string

A text string value.
distributionValue

object (Distribution)

A distribution value.
moneyValue

object (Money)

A money value.

Distribution

Distribution represents a frequency distribution of double-valued sample points. It contains the size of the population of sample points plus additional optional information:

  • the arithmetic mean of the samples
  • the minimum and maximum of the samples
  • the sum-squared-deviation of the samples, used to compute variance
  • a histogram of the values of the sample points
JSON representation 
{
  "count": string,
  "mean": number,
  "minimum": number,
  "maximum": number,
  "sumOfSquaredDeviation": number,
  "bucketCounts": [
    string
  ],
  "exemplars": [
    {
      object (Exemplar)
    }
  ],

  // Union field bucket_option can be only one of the following:
  "linearBuckets": {
    object (LinearBuckets)
  },
  "exponentialBuckets": {
    object (ExponentialBuckets)
  },
  "explicitBuckets": {
    object (ExplicitBuckets)
  }
  // End of list of possible types for union field bucket_option.
}
Fields
count

string (int64 format)

The total number of samples in the distribution. Must be >= 0.
mean

number

The arithmetic mean of the samples in the distribution. If count is zero then this field must be zero.
minimum

number

The minimum of the population of values. Ignored if count is zero.
maximum

number

The maximum of the population of values. Ignored if count is zero.
sumOfSquaredDeviation

number

The sum of squared deviations from the mean: Sum[i=1..count]((x_i - mean)^2) where each x_i is a sample values. If count is zero then this field must be zero, otherwise validation of the request fails.
bucketCounts[]

string (int64 format)

The number of samples in each histogram bucket. bucketCounts are optional. If present, they must sum to the count value.

The buckets are defined below in bucket_option. There are N buckets. bucketCounts[0] is the number of samples in the underflow bucket. bucketCounts[1] to bucketCounts[N-1] are the numbers of samples in each of the finite buckets. And bucketCounts[N] is the number of samples in the overflow bucket. See the comments ofbucket_option` below for more details.

Any suffix of trailing zeros may be omitted.
exemplars[]

object (Exemplar)

Example points. Must be in increasing order of value field.

Union field bucket_option. Defines the buckets in the histogram. bucket_option and bucket_counts must be both set, or both unset.

Buckets are numbered in the range of [0, N], with a total of N+1 buckets. There must be at least two buckets (a single-bucket histogram gives no information that isn't already provided by count).

The first bucket is the underflow bucket which has a lower bound of -inf. The last bucket is the overflow bucket which has an upper bound of +inf. All other buckets (if any) are called "finite" buckets because they have finite lower and upper bounds. As described below, there are three ways to define the finite buckets.

(1) Buckets with constant width. (2) Buckets with exponentially growing widths. (3) Buckets with arbitrary user-provided widths.

In all cases, the buckets cover the entire real number line (-inf, +inf). Bucket upper bounds are exclusive and lower bounds are inclusive. The upper bound of the underflow bucket is equal to the lower bound of the smallest finite bucket; the lower bound of the overflow bucket is equal to the upper bound of the largest finite bucket. bucket_option can be only one of the following:
linearBuckets

object (LinearBuckets)

Buckets with constant width.
exponentialBuckets

object (ExponentialBuckets)

Buckets with exponentially growing width.
explicitBuckets

object (ExplicitBuckets)

Buckets with arbitrary user-provided width.

LinearBuckets

Describing buckets with constant width.

JSON representation 
{
  "numFiniteBuckets": integer,
  "width": number,
  "offset": number
}
Fields
numFiniteBuckets

integer

The number of finite buckets. With the underflow and overflow buckets, the total number of buckets is numFiniteBuckets + 2. See comments on bucketOptions for details.
width

number

The i'th linear bucket covers the interval [offset + (i-1) * width, offset + i * width) where i ranges from 1 to numFiniteBuckets, inclusive. Must be strictly positive.
offset

number

The i'th linear bucket covers the interval [offset + (i-1) * width, offset + i * width) where i ranges from 1 to numFiniteBuckets, inclusive.

ExponentialBuckets

Describing buckets with exponentially growing width.

JSON representation 
{
  "numFiniteBuckets": integer,
  "growthFactor": number,
  "scale": number
}
Fields
numFiniteBuckets

integer

The number of finite buckets. With the underflow and overflow buckets, the total number of buckets is numFiniteBuckets + 2. See comments on bucketOptions for details.
growthFactor

number

The i'th exponential bucket covers the interval [scale * growthFactor^(i-1), scale * growthFactor^i) where i ranges from 1 to numFiniteBuckets inclusive. Must be larger than 1.0.
scale

number

The i'th exponential bucket covers the interval [scale * growthFactor^(i-1), scale * growthFactor^i) where i ranges from 1 to numFiniteBuckets inclusive. Must be > 0.

ExplicitBuckets

Describing buckets with arbitrary user-provided width.

JSON representation 
{
  "bounds": [
    number
  ]
}
Fields
bounds[]

number

'bound' is a list of strictly increasing boundaries between buckets. Note that a list of length N-1 defines N buckets because of fenceposting. See comments on bucketOptions for details.

The i'th finite bucket covers the interval [bound[i-1], bound[i]) where i ranges from 1 to bound_size() - 1. Note that there are no finite buckets at all if 'bound' only contains a single element; in that special case the single bound defines the boundary between the underflow and overflow buckets.

bucket number lower bound upper bound i == 0 (underflow) -inf bound[i] 0 < i < bound_size() bound[i-1] bound[i] i == bound_size() (overflow) bound[i-1] +inf

Exemplar

Exemplars are example points that may be used to annotate aggregated distribution values. They are metadata that gives information about a particular value added to a Distribution bucket, such as a trace ID that was active when a value was added. They may contain further information, such as a example values and timestamps, origin, etc.

JSON representation 
{
  "value": number,
  "timestamp": string,
  "attachments": [
    {
      "@type": string,
      field1: ...,
      ...
    }
  ]
}
Fields
value

number

Value of the exemplar point. This value determines to which bucket the exemplar belongs.
timestamp

string (Timestamp format)

The observation (sampling) time of the above value.

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".
attachments[]

object

Contextual information about the example value. Examples are:

Trace: type.googleapis.com/google.monitoring.v3.SpanContext

Literal string: type.googleapis.com/google.protobuf.StringValue

Labels dropped during aggregation: type.googleapis.com/google.monitoring.v3.DroppedLabels

There may be only a single attachment of any given message type in a single exemplar, and this is enforced by the system.

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" }.

Money

Represents an amount of money with its currency type.

JSON representation 
{
  "currencyCode": string,
  "units": string,
  "nanos": integer
}
Fields
currencyCode

string

The three-letter currency code defined in ISO 4217.
units

string (int64 format)

The whole units of the amount. For example if currencyCode is "USD", then 1 unit is one US dollar.
nanos

integer

Number of nano (10^-9) units of the amount. The value must be between -999,999,999 and +999,999,999 inclusive. If units is positive, nanos must be positive or zero. If units is zero, nanos can be positive, zero, or negative. If units is negative, nanos must be negative or zero. For example $-1.75 is represented as units=-1 and nanos=-750,000,000.

LogEntry

An individual log entry.

JSON representation 
{
  "name": string,
  "timestamp": string,
  "severity": enum (LogSeverity),
  "httpRequest": {
    object (HttpRequest)
  },
  "trace": string,
  "insertId": string,
  "labels": {
    string: string,
    ...
  },
  "operation": {
    object (LogEntryOperation)
  },
  "sourceLocation": {
    object (LogEntrySourceLocation)
  },

  // Union field payload can be only one of the following:
  "protoPayload": {
    "@type": string,
    field1: ...,
    ...
  },
  "textPayload": string,
  "structPayload": {
    object
  }
  // End of list of possible types for union field payload.
}
Fields
name

string

Required. The log to which this log entry belongs. Examples: "syslog", "book_log".
timestamp

string (Timestamp format)

The time the event described by the log entry occurred. If omitted, defaults to operation start time.

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".
severity

enum (LogSeverity)

The severity of the log entry. The default value is LogSeverity.DEFAULT.
httpRequest

object (HttpRequest)

Optional. Information about the HTTP request associated with this log entry, if applicable.
trace

string

Optional. Resource name of the trace associated with the log entry, if any. If this field contains a relative resource name, you can assume the name is relative to //tracing.googleapis.com. Example: projects/my-projectid/traces/06796866738c859f2f19b7cfb3214824
insertId

string

A unique ID for the log entry used for deduplication. If omitted, the implementation will generate one based on operationId.
labels

map (key: string, value: string)

A set of user-defined (key, value) data that provides additional information about the log entry.

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

object (LogEntryOperation)

Optional. Information about an operation associated with the log entry, if applicable.
sourceLocation

object (LogEntrySourceLocation)

Optional. Source code location information associated with the log entry, if any.
Union field payload. The log entry payload, which can be one of multiple types. payload can be only one of the following:
protoPayload

object

The log entry payload, represented as a protocol buffer that is expressed as a JSON object. The only accepted type currently is [AuditLog][google.cloud.audit.AuditLog].

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" }.
textPayload

string

The log entry payload, represented as a Unicode string (UTF-8).
structPayload

object (Struct format)

The log entry payload, represented as a structure that is expressed as a JSON object.

HttpRequest

A common proto for logging HTTP requests. Only contains semantics defined by the HTTP specification. Product-specific logging information MUST be defined in a separate message.

JSON representation 
{
  "requestMethod": string,
  "requestUrl": string,
  "requestSize": string,
  "status": integer,
  "responseSize": string,
  "userAgent": string,
  "remoteIp": string,
  "serverIp": string,
  "referer": string,
  "latency": string,
  "cacheLookup": boolean,
  "cacheHit": boolean,
  "cacheValidatedWithOriginServer": boolean,
  "cacheFillBytes": string,
  "protocol": string
}
Fields
requestMethod

string

The request method. Examples: "GET", "HEAD", "PUT", "POST".
requestUrl

string

The scheme (http, https), the host name, the path, and the query portion of the URL that was requested. Example: "http://example.com/some/info?color=red".
requestSize

string (int64 format)

The size of the HTTP request message in bytes, including the request headers and the request body.
status

integer

The response code indicating the status of the response. Examples: 200, 404.
responseSize

string (int64 format)

The size of the HTTP response message sent back to the client, in bytes, including the response headers and the response body.
userAgent

string

The user agent sent by the client. Example: "Mozilla/4.0 (compatible; MSIE 6.0; Windows 98; Q312461; .NET CLR 1.0.3705)".
remoteIp

string

The IP address (IPv4 or IPv6) of the client that issued the HTTP request. Examples: "192.168.1.1", "FE80::0202:B3FF:FE1E:8329".
serverIp

string

The IP address (IPv4 or IPv6) of the origin server that the request was sent to.
referer

string

The referer URL of the request, as defined in HTTP/1.1 Header Field Definitions.
latency

string (Duration format)

The request processing latency on the server, from the time the request was received until the response was sent.

A duration in seconds with up to nine fractional digits, terminated by 's'. Example: "3.5s".
cacheLookup

boolean

Whether or not a cache lookup was attempted.
cacheHit

boolean

Whether or not an entity was served from cache (with or without validation).
cacheValidatedWithOriginServer

boolean

Whether or not the response was validated with the origin server before being served from cache. This field is only meaningful if cacheHit is True.
cacheFillBytes

string (int64 format)

The number of HTTP response bytes inserted into cache. Set only when a cache fill was attempted.
protocol

string

Protocol used for the request. Examples: "HTTP/1.1", "HTTP/2", "websocket"

LogEntryOperation

Additional information about a potentially long-running operation with which a log entry is associated.

JSON representation 
{
  "id": string,
  "producer": string,
  "first": boolean,
  "last": boolean
}
Fields
id

string

Optional. An arbitrary operation identifier. Log entries with the same identifier are assumed to be part of the same operation.
producer

string

Optional. An arbitrary producer identifier. The combination of id and producer must be globally unique. Examples for producer: "MyDivision.MyBigCompany.com", "github.com/MyProject/MyApplication".
first

boolean

Optional. Set this to True if this is the first log entry in the operation.
last

boolean

Optional. Set this to True if this is the last log entry in the operation.

LogEntrySourceLocation

Additional information about the source code location that produced the log entry.

JSON representation 
{
  "file": string,
  "line": string,
  "function": string
}
Fields
file

string

Optional. Source file name. Depending on the runtime environment, this might be a simple name or a fully-qualified name.
line

string (int64 format)

Optional. Line within the source file. 1-based; 0 indicates no line number available.
function

string

Optional. Human-readable name of the function or method being invoked, with optional context such as the class or package name. This information may be used in contexts such as the logs viewer, where a file and line number are less meaningful. The format can vary by language. For example: qual.if.ied.Class.method (Java), dir/package.func (Go), function (Python).

QuotaProperties

Represents the properties needed for quota operations.

JSON representation 
{
  "quotaMode": enum (QuotaMode)
}
Fields
quotaMode

enum (QuotaMode)

Quota mode for this operation.

ResourceInfo

Describes a resource associated with this operation.

JSON representation 
{
  "resourceContainer": string,
  "resourceName": string,
  "resourceLocation": string
}
Fields
resourceContainer

string

The identifier of the parent of this resource instance. Must be in one of the following formats: - projects/<project-id or project-number> - folders/<folder-id> - organizations/<organization-id>
resourceName

string

Name of the resource. This is used for auditing purposes.
resourceLocation

string

The location of the resource. If not empty, the resource will be checked against location policy. The value must be a valid zone, region or multiregion. For example: "europe-west4" or "northamerica-northeast1-a"

TraceSpan

A span represents a single operation within a trace. Spans can be nested to form a trace tree. Often, a trace contains a root span that describes the end-to-end latency, and one or more subspans for its sub-operations. A trace can also contain multiple root spans, or none at all. Spans do not need to be contiguous—there may be gaps or overlaps between spans in a trace.

JSON representation 
{
  "name": string,
  "spanId": string,
  "parentSpanId": string,
  "displayName": {
    object (TruncatableString)
  },
  "startTime": string,
  "endTime": string,
  "attributes": {
    object (Attributes)
  },
  "status": {
    object (Status)
  },
  "sameProcessAsParentSpan": boolean,
  "childSpanCount": integer,
  "spanKind": enum (SpanKind)
}
Fields
name

string

The resource name of the span in the following format:

projects/[PROJECT_ID]/traces/[TRACE_ID]/spans/[SPAN_ID]

[TRACE_ID] is a unique identifier for a trace within a project; it is a 32-character hexadecimal encoding of a 16-byte array.

[SPAN_ID] is a unique identifier for a span within a trace; it is a 16-character hexadecimal encoding of an 8-byte array.
spanId

string

The [SPAN_ID] portion of the span's resource name.
parentSpanId

string

The [SPAN_ID] of this span's parent span. If this is a root span, then this field must be empty.
displayName

object (TruncatableString)

A description of the span's operation (up to 128 bytes). Stackdriver Trace displays the description in the Google Cloud Platform Console. For example, the display name can be a qualified method name or a file name and a line number where the operation is called. A best practice is to use the same display name within an application and at the same call point. This makes it easier to correlate spans in different traces.
startTime

string (Timestamp format)

The start time of the span. On the client side, this is the time kept by the local machine where the span execution starts. On the server side, this is the time when the server's application handler starts running.

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".
endTime

string (Timestamp format)

The end time of the span. On the client side, this is the time kept by the local machine where the span execution ends. On the server side, this is the time when the server application handler stops running.

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".
attributes

object (Attributes)

A set of attributes on the span. You can have up to 32 attributes per span.
status

object (Status)

An optional final status for this span.
sameProcessAsParentSpan

boolean

(Optional) Set this parameter to indicate whether this span is in the same process as its parent. If you do not set this parameter, Stackdriver Trace is unable to take advantage of this helpful information.
childSpanCount

integer

An optional number of child spans that were generated while this span was active. If set, allows implementation to detect missing child spans.
spanKind

enum (SpanKind)

Distinguishes between spans generated in a particular context. For example, two spans with the same name may be distinguished using CLIENT (caller) and SERVER (callee) to identify an RPC call.

Attributes

A set of attributes, each in the format [KEY]:[VALUE].

JSON representation 
{
  "attributeMap": {
    string: {
      object (AttributeValue)
    },
    ...
  },
  "droppedAttributesCount": integer
}
Fields
attributeMap

map (key: string, value: object (AttributeValue))

The set of attributes. Each attribute's key can be up to 128 bytes long. The value can be a string up to 256 bytes, a signed 64-bit integer, or the Boolean values true and false. For example:

"/instance_id": "my-instance"
"/http/userAgent": ""
"/http/request_bytes": 300
"example.com/myattribute": true

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

integer

The number of attributes that were discarded. Attributes can be discarded because their keys are too long or because there are too many attributes. If this value is 0 then all attributes are valid.