dartastic_opentelemetry_api library

OpenTelemetry API for Dart

This library provides the OpenTelemetry API implementation for Dart, following the OpenTelemetry specification. It includes support for tracing, metrics, baggage, and context propagation.

For more information, see the OpenTelemetry specification at https://opentelemetry.io/docs/specs/otel/

Classes

APICallbackRegistration<T extends num>
A registration for an observable callback.
APICounter<T extends num>
APICounter is a synchronous Instrument which supports non-negative increments.
APIGauge<T extends num>
APIGauge is a synchronous Instrument which reports instantaneous measurements.
APIHistogram<T extends num>
APIHistogram is a synchronous Instrument which records a distribution of values.
APIInstrument
The base interface for all metric instruments.
APILogger
Logger is responsible for creating LogRecordss. The API prefix indicates that it's part of the API and not the SDK and generally should not be used since an API without an SDK is a noop. Use the Logger from the SDK instead.
APILoggerProvider
APILoggerProvider is the entry point of the OpenTelemetry logger API. The API prefix indicates that it's part of the API and not the SDK and generally should not be used since an API without an SDK is a noop. Use the LoggerProvider from the SDK instead. It provides access to APILoggers which are used to log operations. You cannot create a LoggerProvider directly; you must use OTelAPI or more likely OTel, for example to get the default logger:
APIMeter
Meter is responsible for creating Instruments and recording metrics. The API prefix indicates that it's part of the API and not the SDK and generally should not be used since an API without an SDK is a noop. Use the Meter from the SDK instead.
APIMeterProvider
APIMeterProvider is the entry point of the OpenTelemetry metrics API. The API prefix indicates that it's part of the API and not the SDK and generally should not be used since an API without an SDK is a noop. Use the MeterProvider from the SDK instead. It provides access to APIMeters which are used to record metrics. You cannot create a MeterProvider directly; you must use OTelAPI or more likely, OTel, for example to get the default meter provider:
APIObservableCounter<T extends num>
APIObservableCounter is an asynchronous Instrument which reports monotonically increasing value(s) when the instrument is being observed.
APIObservableGauge<T extends num>
APIObservableGauge is an asynchronous Instrument which reports non-additive value(s) when the instrument is being observed.
APIObservableResult<T extends num>
Interface for recording observations from observable instruments.
APIObservableUpDownCounter<T extends num>
APIObservableUpDownCounter is an asynchronous Instrument which reports values that increase or decrease when the instrument is being observed.
APISpan
Span represents a single operation within a trace. The API prefix indicates that it's part of the API and not the SDK and generally should not be used since an API without an SDK is a noop. Use the TracerProvider from the SDK instead. Spans can be nested to form a trace tree. Each trace contains a root span, which typically describes the end-to-end latency, and zero or more sub-spans for its sub-operations. Any span that is created MUST also be ended. This is the responsibility of the user. API implementations MAY leak memory or other resources (including, for example, CPU time for periodic work that iterates all spans) if the user forgot to end the span.
APITracer
Tracer is responsible for creating APISpans and propagating context in-process. The API prefix indicates that it's part of the API and not the SDK and generally should not be used since an API without an SDK is a noop. Use the TracerProvider from the SDK instead.
APITracerProvider
APITracerProvider is the entry point of the OpenTelemetry tracing API. The API prefix indicates that it's part of the API and not the SDK and generally should not be used since an API without an SDK is a noop. Use the TracerProvider from the SDK instead. It provides access to APITracers which are used to trace operations. You cannot create a TracerProvider directly; you must use OTelAPI or more likely OTel, for example to get the default tracer:
APIUpDownCounter<T extends num>
APIUpDownCounter is a synchronous Instrument which supports increments and decrements.
Attribute<T extends Object>
Represents a value for an attribute, associated with an attribute key.
Attributes
A collection of attributes that are immutable and type-safe. Create with the OTelFactory methods.
Baggage
Immutable Baggage that stores entries with unique string keys.
BaggageEntry
A single entry within Baggage. Typically just a value plus optional metadata.
BaggageEntryFactory
Factory for creating BaggageEntry instances. This is used internally by the OpenTelemetry API implementation.
CompositePropagator<C, V>
A propagator that combines multiple other propagators.
Context
Represents the immutable context containing active spans, baggage, and other data.
ContextKey<T>
Key for Context values Each instance is unique, even if created with the same name.
ContextPropagator<C>
A propagator for binary values that can inject into and extract from a carrier.
HttpHeaderAttribute
Utility class for creating OpenTelemetry HTTP header attribute keys.
IdGenerator
Generates trace and span IDs according to the W3C Trace Context specification.
InstrumentationScope
Represents the instrumentation scope information.
LogRecord
Required parameter for LogRecord. According to the spec in https://opentelemetry.io/docs/specs/otel/logs/api/#emit-a-logrecord
Measurement<T extends num>
Represents a data point reported via the metrics API.
NonRecordingSpan
A non-recording APISpan that carries a SpanContext without recording anything.
NoopTextMapPropagator<C, V>
A TextMapPropagator that propagates nothing.
OTelAPI
The OTelAPI is the no-op API implementation of OTel, as required by the specification This class should only be used in the rare case of running without and SDK It is provided to comply with the specifiction requirement that the API can be used without an SDK installed. The initialize method must be called first. Internally it sets the OTelFactory to OTelAPIFactory. The rest of the methods act like factory constructors for OTelAPI classes.
OTelAPIFactory
The factory used when no SDK is installed. The OpenTelemetry specification requires the API to work without an SDK installed All construction APIs use the factory, such as builders or 'from' helpers.
OTelEntity
Base interface for entity enums.
OTelEvent
Base interface for event-name enums.
OTelFactory
The OTelFactory is the plugin mechanism for OpenTelemetry SDK's. The OpenTelemetry specifies that the API must work without any SDK installed. The API uses the OTelAPIFactory as a default. SDKs override this default by registering their own APIFactory
OTelLog
A simple log service that logs messages and signals to the console. It filters messages based on the current log level. Signals are not filtered based on log level Defaults to noop,
OTelMetric
Base interface for metric-name enums.
OTelSemantic
Base interface for OpenTelemetry semantic-convention attribute-key enums. Every generated attribute-key enum implements this; consumers can also implement it on their own app-specific enums to mix into attributesFromSemanticMap.
OTelSemanticIntValue
Marker on every int-valued value enum (e.g. the values of cpython.gc.generation) — exposes the on-wire integer value.
OTelSemanticValue
Marker on every string-valued value enum — exposes the on-wire string value and a toString() that returns it. Modeled on the same shape as OTelSemantic, but kept separate because these are values, not keys.
SemconvRegistry
Index of every generated semantic-convention enum, plus the registry version this package was generated from.
SpanContext
Immutable representation of a SpanContext. A SpanContext contains the state that must propagate to child Spans and across process boundaries. SpanContext follows the W3C Trace Context specification.
SpanEvent
Represents an event that occurred during a span's lifetime.
SpanId
A span identifier - an 8-byte array with an ID in a base-16 hex format. Follows W3C Trace Context specification.
Represents a link between spans in potentially different traces.
SystemTimeProvider
Default TimeProvider backed by DateTime.now.
TextMapGetter<T>
TextMapGetter allows an SDK to read values from a carrier object
TextMapPropagator<C, V>
Interface for propagating context between processes using text maps
TextMapSetter<T>
TextMapSetter allows an SDK to set values on a carrier object
TimeProvider
A clock for span start, end, and event timestamps.
Timestamp
Utility class for working with OpenTelemetry timestamps.
TraceFlags
Trace flags for a SpanContext. These flags are used to control tracing behavior. TraceFlags follows the W3C Trace Context specification.
TraceId
A trace identifier - a 16-byte array with an ID in a base-16 hex format. TraceId follows the W3C Trace Context specification.
TraceState
Key-value pairs carried along with a span context. TraceState follows the W3C Trace Context specification.
WebTimeProvider
Native-target stub for WebTimeProvider.

Enums

Android
android.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
AndroidAppState
Values for android.app.state.
AndroidEntity
android entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.
AndroidState
Values for android.state.
App
app.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
AppEntity
app entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.
AppEvent
app event names from the OpenTelemetry semantic conventions.
Artifact
artifact.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
Aspnetcore
aspnetcore.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
AspnetcoreAuthenticationResult
Values for aspnetcore.authentication.result.
AspnetcoreAuthorizationResult
Values for aspnetcore.authorization.result.
AspnetcoreDiagnosticsExceptionResult
Values for aspnetcore.diagnostics.exception.result.
AspnetcoreIdentityPasswordCheckResult
Values for aspnetcore.identity.password_check_result.
AspnetcoreIdentityResult
Values for aspnetcore.identity.result.
AspnetcoreIdentitySignInResult
Values for aspnetcore.identity.sign_in.result.
AspnetcoreIdentitySignInType
Values for aspnetcore.identity.sign_in.type.
AspnetcoreIdentityTokenPurpose
Values for aspnetcore.identity.token_purpose.
AspnetcoreIdentityTokenVerified
Values for aspnetcore.identity.token_verified.
AspnetcoreIdentityUserUpdateType
Values for aspnetcore.identity.user.update_type.
AspnetcoreMetric
aspnetcore.* metric instruments from the OpenTelemetry semantic conventions.
AspnetcoreRateLimitingResult
Values for aspnetcore.rate_limiting.result.
AspnetcoreRoutingMatchStatus
Values for aspnetcore.routing.match_status.
Aws
aws.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
AwsEcsLaunchtype
Values for aws.ecs.launchtype.
AwsEntity
aws entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.
Az
az.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
AzEvent
az event names from the OpenTelemetry semantic conventions.
Azure
azure.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
AzureCosmosdbConnectionMode
Values for azure.cosmosdb.connection.mode.
AzureCosmosdbConsistencyLevel
Values for azure.cosmosdb.consistency.level.
AzureEvent
azure event names from the OpenTelemetry semantic conventions.
AzureMetric
azure.* metric instruments from the OpenTelemetry semantic conventions.
Browser
browser.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
BrowserEntity
browser entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.
BrowserEvent
browser event names from the OpenTelemetry semantic conventions.
Cassandra
cassandra.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
CassandraConsistencyLevel
Values for cassandra.consistency.level.
Cicd
cicd.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
CicdEntity
cicd entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.
CicdMetric
cicd.* metric instruments from the OpenTelemetry semantic conventions.
CicdPipelineActionName
Values for cicd.pipeline.action.name.
CicdPipelineResult
Values for cicd.pipeline.result.
CicdPipelineRunState
Values for cicd.pipeline.run.state.
CicdPipelineTaskRunResult
Values for cicd.pipeline.task.run.result.
CicdPipelineTaskType
Values for cicd.pipeline.task.type.
CicdWorkerState
Values for cicd.worker.state.
Client
client.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
Cloud
cloud.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
CloudEntity
cloud entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.
Cloudevents
cloudevents.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
Cloudfoundry
cloudfoundry.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
CloudfoundryEntity
cloudfoundry entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.
CloudPlatform
Values for cloud.platform.
CloudProvider
Values for cloud.provider.
Code
code.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
ContainerAttributes
container.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
ContainerCpuState
Values for container.cpu.state.
ContainerEntity
container entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.
ContainerMetric
container.* metric instruments from the OpenTelemetry semantic conventions.
Cpu
cpu.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
CpuMetric
cpu.* metric instruments from the OpenTelemetry semantic conventions.
CpuMode
Values for cpu.mode.
Cpython
cpython.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
CpythonGcGeneration
Values for cpython.gc.generation.
CpythonMetric
cpython.* metric instruments from the OpenTelemetry semantic conventions.
Db
db.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
DbCassandraConsistencyLevel
Values for db.cassandra.consistency_level.
DbClientConnectionsState
Values for db.client.connections.state.
DbClientConnectionState
Values for db.client.connection.state.
DbCosmosdbConnectionMode
Values for db.cosmosdb.connection_mode.
DbCosmosdbConsistencyLevel
Values for db.cosmosdb.consistency_level.
DbCosmosdbOperationType
Values for db.cosmosdb.operation_type.
DbEvent
db event names from the OpenTelemetry semantic conventions.
DbMetric
db.* metric instruments from the OpenTelemetry semantic conventions.
DbSystem
Values for db.system.
DbSystemName
Values for db.system.name.
Deployment
deployment.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
DeploymentEntity
deployment entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.
DeploymentEnvironmentName
Values for deployment.environment.name.
DeploymentStatus
Values for deployment.status.
Destination
destination.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
Device
device.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
DeviceEntity
device entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.
DeviceEvent
device event names from the OpenTelemetry semantic conventions.
Disk
disk.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
DiskIoDirection
Values for disk.io.direction.
Dns
dns.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
DnsMetric
dns.* metric instruments from the OpenTelemetry semantic conventions.
Dotnet
dotnet.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
DotnetGcHeapGeneration
Values for dotnet.gc.heap.generation.
DotnetMetric
dotnet.* metric instruments from the OpenTelemetry semantic conventions.
Elasticsearch
elasticsearch.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
Enduser
enduser.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
ErrorAttributes
error.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
ErrorType
Values for error.type.
EventAttributes
event.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
ExceptionAttributes
exception.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
ExceptionEvent
exception event names from the OpenTelemetry semantic conventions.
Faas
faas.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
FaasDocumentOperation
Values for faas.document.operation.
FaasEntity
faas entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.
FaasEvent
faas event names from the OpenTelemetry semantic conventions.
FaasInvokedProvider
Values for faas.invoked_provider.
FaasMetric
faas.* metric instruments from the OpenTelemetry semantic conventions.
FaasTrigger
Values for faas.trigger.
FeatureFlag
feature_flag.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
FeatureFlagEvaluationReason
Values for feature_flag.evaluation.reason.
FeatureFlagEvent
feature_flag event names from the OpenTelemetry semantic conventions.
FeatureFlagResultReason
Values for feature_flag.result.reason.
FileAttributes
file.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
FileLockType
Values for file.lock.type.
Gcp
gcp.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
GcpApphubDestinationServiceCriticalityType
Values for gcp.apphub_destination.service.criticality_type.
GcpApphubDestinationServiceEnvironmentType
Values for gcp.apphub_destination.service.environment_type.
GcpApphubDestinationWorkloadCriticalityType
Values for gcp.apphub_destination.workload.criticality_type.
GcpApphubDestinationWorkloadEnvironmentType
Values for gcp.apphub_destination.workload.environment_type.
GcpApphubServiceCriticalityType
Values for gcp.apphub.service.criticality_type.
GcpApphubServiceEnvironmentType
Values for gcp.apphub.service.environment_type.
GcpApphubWorkloadCriticalityType
Values for gcp.apphub.workload.criticality_type.
GcpApphubWorkloadEnvironmentType
Values for gcp.apphub.workload.environment_type.
GcpEntity
gcp entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.
GenAi
gen_ai.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
GenAiEvent
gen_ai event names from the OpenTelemetry semantic conventions.
GenAiMetric
gen_ai.* metric instruments from the OpenTelemetry semantic conventions.
GenAiOpenaiRequestResponseFormat
Values for gen_ai.openai.request.response_format.
GenAiOpenaiRequestServiceTier
Values for gen_ai.openai.request.service_tier.
GenAiOperationName
Values for gen_ai.operation.name.
GenAiOutputType
Values for gen_ai.output.type.
GenAiProviderName
Values for gen_ai.provider.name.
GenAiSystem
Values for gen_ai.system.
GenAiTokenType
Values for gen_ai.token.type.
Geo
geo.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
GeoContinentCode
Values for geo.continent.code.
Go
go.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
GoCpuState
Values for go.cpu.state.
GoMemoryType
Values for go.memory.type.
GoMetric
go.* metric instruments from the OpenTelemetry semantic conventions.
Graphql
graphql.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
GraphqlOperationType
Values for graphql.operation.type.
Heroku
heroku.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
HerokuEntity
heroku entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.
Host
host.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
HostArch
Values for host.arch.
HostEntity
host entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.
Http
http.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
HttpConnectionState
Values for http.connection.state.
HttpEvent
http event names from the OpenTelemetry semantic conventions.
HttpFlavor
Values for http.flavor.
HttpMetric
http.* metric instruments from the OpenTelemetry semantic conventions.
HttpRequestMethod
Values for http.request.method.
Hw
hw.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
HwBatteryState
Values for hw.battery.state.
HwGpuTask
Values for hw.gpu.task.
HwLimitType
Values for hw.limit_type.
HwLogicalDiskState
Values for hw.logical_disk.state.
HwMetric
hw.* metric instruments from the OpenTelemetry semantic conventions.
HwPhysicalDiskState
Values for hw.physical_disk.state.
HwState
Values for hw.state.
HwTapeDriveOperationType
Values for hw.tape_drive.operation_type.
HwType
Values for hw.type.
Ios
ios.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
IosAppState
Values for ios.app.state.
IosState
Values for ios.state.
Jsonrpc
jsonrpc.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
Jvm
jvm.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
JvmMemoryType
Values for jvm.memory.type.
JvmMetric
jvm.* metric instruments from the OpenTelemetry semantic conventions.
JvmThreadState
Values for jvm.thread.state.
K8s
k8s.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
K8sContainerEphemeralStorageFsType
Values for k8s.container.ephemeral_storage.fs_type.
K8sContainerStatusReason
Values for k8s.container.status.reason.
K8sContainerStatusState
Values for k8s.container.status.state.
K8sEntity
k8s entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.
K8sMetric
k8s.* metric instruments from the OpenTelemetry semantic conventions.
K8sNamespacePhase
Values for k8s.namespace.phase.
K8sNodeConditionStatus
Values for k8s.node.condition.status.
K8sNodeConditionType
Values for k8s.node.condition.type.
K8sPersistentvolumeclaimStatusPhase
Values for k8s.persistentvolumeclaim.status.phase.
K8sPersistentvolumeReclaimPolicy
Values for k8s.persistentvolume.reclaim_policy.
K8sPersistentvolumeStatusPhase
Values for k8s.persistentvolume.status.phase.
K8sPodStatusPhase
Values for k8s.pod.status.phase.
K8sPodStatusReason
Values for k8s.pod.status.reason.
K8sServiceEndpointAddressType
Values for k8s.service.endpoint.address_type.
K8sServiceEndpointCondition
Values for k8s.service.endpoint.condition.
K8sServiceType
Values for k8s.service.type.
K8sVolumeType
Values for k8s.volume.type.
KestrelMetric
kestrel.* metric instruments from the OpenTelemetry semantic conventions.
Linux
linux.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
LinuxMemorySlabState
Values for linux.memory.slab.state.
Log
log.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
LogIostream
Values for log.iostream.
LogLevel
The log levels supported by OTelLog.
Mainframe
mainframe.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
Mcp
mcp.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
McpMethodName
Values for mcp.method.name.
McpMetric
mcp.* metric instruments from the OpenTelemetry semantic conventions.
Message
message.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
MessageType
Values for message.type.
Messaging
messaging.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
MessagingEvent
messaging event names from the OpenTelemetry semantic conventions.
MessagingMetric
messaging.* metric instruments from the OpenTelemetry semantic conventions.
MessagingOperationType
Values for messaging.operation.type.
MessagingRocketmqConsumptionModel
Values for messaging.rocketmq.consumption_model.
MessagingRocketmqMessageType
Values for messaging.rocketmq.message.type.
MessagingServicebusDispositionStatus
Values for messaging.servicebus.disposition_status.
MessagingSystem
Values for messaging.system.
Net
net.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
NetSockFamily
Values for net.sock.family.
NetTransport
Values for net.transport.
Network
network.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
NetworkConnectionState
Values for network.connection.state.
NetworkConnectionSubtype
Values for network.connection.subtype.
NetworkConnectionType
Values for network.connection.type.
NetworkIoDirection
Values for network.io.direction.
NetworkTransport
Values for network.transport.
NetworkType
Values for network.type.
Nfs
nfs.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
NfsMetric
nfs.* metric instruments from the OpenTelemetry semantic conventions.
Nodejs
nodejs.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
NodejsEventloopState
Values for nodejs.eventloop.state.
NodejsMetric
nodejs.* metric instruments from the OpenTelemetry semantic conventions.
Oci
oci.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
OncRpc
onc_rpc.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
Openai
openai.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
OpenaiApiType
Values for openai.api.type.
OpenaiRequestServiceTier
Values for openai.request.service_tier.
Openshift
openshift.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
OpenshiftEntity
openshift entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.
OpenshiftMetric
openshift.* metric instruments from the OpenTelemetry semantic conventions.
Opentracing
opentracing.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
OpentracingRefType
Values for opentracing.ref_type.
Oracle
oracle.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
OracleCloud
oracle_cloud.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
Os
os.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
OsEntity
os entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.
OsType
Values for os.type.
Otel
otel.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
OtelComponentType
Values for otel.component.type.
OtelEntity
otel entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.
OtelMetric
otel.* metric instruments from the OpenTelemetry semantic conventions.
OtelSpanParentOrigin
Values for otel.span.parent.origin.
OtelSpanSamplingResult
Values for otel.span.sampling_result.
OtelStatusCode
Values for otel.status_code.
Other
other.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
Peer
peer.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
Pool
pool.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
Pprof
pprof.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
ProcessAttributes
process.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
ProcessContextSwitchType
Values for process.context_switch.type.
ProcessCpuState
Values for process.cpu.state.
ProcessEntity
process entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.
ProcessMetric
process.* metric instruments from the OpenTelemetry semantic conventions.
ProcessPagingFaultType
Values for process.paging.fault_type.
ProcessState
Values for process.state.
Profile
profile.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
ProfileFrameType
Values for profile.frame.type.
Rpc
rpc.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
RpcConnectRpcErrorCode
Values for rpc.connect_rpc.error_code.
RpcEvent
rpc event names from the OpenTelemetry semantic conventions.
RpcGrpcStatusCode
Values for rpc.grpc.status_code.
RpcMessageType
Values for rpc.message.type.
RpcMetric
rpc.* metric instruments from the OpenTelemetry semantic conventions.
RpcSystem
Values for rpc.system.
RpcSystemName
Values for rpc.system.name.
SecurityRule
security_rule.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
SemanticInstrument
The four OTel instrument kinds.
Server
server.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
Service
service.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
ServiceCriticality
Values for service.criticality.
ServiceEntity
service entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.
Session
session.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
SessionEvent
session event names from the OpenTelemetry semantic conventions.
Severity
SeverityLevel
Signalr
signalr.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
SignalrConnectionStatus
Values for signalr.connection.status.
SignalrMetric
signalr.* metric instruments from the OpenTelemetry semantic conventions.
SignalrTransport
Values for signalr.transport.
Source
source.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
SpanKind
Type of span. Can be used to specify additional relationships between spans in addition to a parent/child relationship.
SpanStatusCode
The set of canonical status codes.
StateValue
Values for state.
System
system.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
SystemCpuState
Values for system.cpu.state.
SystemFilesystemState
Values for system.filesystem.state.
SystemFilesystemType
Values for system.filesystem.type.
SystemMemoryLinuxHugepagesState
Values for system.memory.linux.hugepages.state.
SystemMemoryLinuxSlabState
Values for system.memory.linux.slab.state.
SystemMemoryState
Values for system.memory.state.
SystemMetric
system.* metric instruments from the OpenTelemetry semantic conventions.
SystemNetworkState
Values for system.network.state.
SystemPagingDirection
Values for system.paging.direction.
SystemPagingFaultType
Values for system.paging.fault.type.
SystemPagingState
Values for system.paging.state.
SystemPagingType
Values for system.paging.type.
SystemProcessesStatus
Values for system.processes.status.
SystemProcessStatus
Values for system.process.status.
Telemetry
telemetry.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
TelemetryEntity
telemetry entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.
TelemetrySdkLanguage
Values for telemetry.sdk.language.
Test
test.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
TestCaseResultStatus
Values for test.case.result.status.
TestSuiteRunStatus
Values for test.suite.run.status.
Thread
thread.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
Tls
tls.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
TlsProtocolName
Values for tls.protocol.name.
Url
url.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
User
user.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
UserAgent
user_agent.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
UserAgentSyntheticType
Values for user_agent.synthetic.type.
V8js
v8js.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
V8jsGcType
Values for v8js.gc.type.
V8jsHeapSpaceName
Values for v8js.heap.space.name.
V8jsMetric
v8js.* metric instruments from the OpenTelemetry semantic conventions.
V8jsResourceType
Values for v8js.resource.type.
Vcs
vcs.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
VcsChangeState
Values for vcs.change.state.
VcsEntity
vcs entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.
VcsLineChangeType
Values for vcs.line_change.type.
VcsMetric
vcs.* metric instruments from the OpenTelemetry semantic conventions.
VcsProviderName
Values for vcs.provider.name.
VcsRefBaseType
Values for vcs.ref.base.type.
VcsRefHeadType
Values for vcs.ref.head.type.
VcsRefType
Values for vcs.ref.type.
VcsRepositoryRefType
Values for vcs.repository.ref.type.
VcsRevisionDeltaDirection
Values for vcs.revision_delta.direction.
Webengine
webengine.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
WebengineEntity
webengine entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.
Zos
zos.* attribute keys from the OpenTelemetry semantic-conventions attribute registry.
ZosEntity
zos entities from the OpenTelemetry semantic conventions. Each member carries the entity type string plus the attribute keys that identify and describe it.

Extensions

AttributesExtension on Map<String, Object>
Extension to create Attributes from a simple Map
OTelSemanticExtension on OTelSemantic
Extension on OTelSemantic to provide utility methods.

Constants

defaultTimeProvider → const TimeProvider
Platform default TimeProvider for native targets (Dart-VM, AOT, Flutter mobile/desktop): SystemTimeProvider backed by DateTime.now. Selected at compile time via the conditional export in default_time_provider.dart.

Functions

otelApiFactoryFactoryFunction({required String apiEndpoint, required String apiServiceName, required String apiServiceVersion}) → OTelFactory
Factory function that creates an instance of OTelAPIFactory.

Typedefs

LogFunction = void Function(String)
Function type for logging operations
ObservableCallback<T extends num> = void Function(APIObservableResult<T> result)
A callback function for observable instruments.
OTelFactoryCreationFunction = OTelFactory Function({required String apiEndpoint, required String apiServiceName, required String apiServiceVersion})
A function that creates the OTel Factory, used bu initialize methods