0.0.13 - 2019-05-20

• Exporter/Stats/Prometheus: Fix missing tags for HTTP metrics
• http-instrumentation: add support for the addition of custom attributes to spans
• Set CurrentRootSpan correctly
• Chore: update GRPC to 1.12.3
• Fix: handle infinite loop caused by get traceState()
• Chore: upgrade engines field to >=8
• Chore: Fix js-yaml vulnerability from Codecov
• Change CLS import to do stats type more general

This release has a breaking change. Please test your code accordingly after upgrading.

• Remove Span's startChildSpan(nameOrOptions?: string|SpanOptions, kind?: SpanKind) interface, now only SpanOptions object interface is supported.

0.0.12 - 2019-05-13

• Add defaultAttributes config to Tracer.start(config)
• http-instrumentation: Handle incoming requests with long request url path.
• Add Cumulative (DoubleCumulative, LongCumulative, , DerivedDoubleCumulative, DerivedLongCumulative) APIs.
• Export TracerBase as a separate @opencensus/nodejs-base package.
• Fix(deps): update dependency nyc to v14.
• Fix(deps): update dependency grpc to ~1.20.0
• chore(package): update handlebar to avoid security vulnabirity.
• Move propagation-binaryformat package to dependencies.
• Fix(deps): update dependency @grpc/proto-loader to ^0.5.0
• http-instrumentation: fix propagation errors when using Expect header.
• Consolidate Span and RootSpan to allow Spans to recursively have children.

This release has a breaking change. Please test your code accordingly after upgrading.

• removing Tracer's startChildSpan(name?: string, kind?: types.SpanKind) interface

Old code

// Multi argument interface
const span = tracer.startChildSpan('my-span', types.SpanKind.SERVER);

// Or options object interface
const span = tracer.startChildSpan({
  name: 'my-span',
  kind: types.SpanKind.SERVER
});

New code

// Only options object interface is supported
const span = tracer.startChildSpan({
  name: 'my-span',
  kind: types.SpanKind.SERVER
});

0.0.11 - 2019-04-08

• Gauge: Add support for constant labels.
• Add support for Opencensus Span links to Thrift Span references.
• Add Redis and IORedis instrumentation plugins by default.
• Fix(deps): update dependency googleapis to v39.
• Fix error in Opencensus to stackdriver translation (compressedSize -> compressedSizeBytes and uncompressedSize -> uncompressedSizeBytes)
• Remove createScopedRequired usage.

0.0.10 - 2019-04-03

• Add optional compressedSize and uncompressedSize params to Span.addMessageEvent
• Add support for tags, status and annotation in Zipkin exporter.
• Add support for Binary propagation format.
• Add support for object(SpanOptions) as an argument for startChildSpan function, similar to startRootSpan.
• Add proto files to exporter-ocagent package. Fixes issue #174.
• Remove ConfigStream behavior from exporter-ocagent. This was unstable and is not currently supported by any other language instrumentation.
• Change default exporter-ocagent port to 55678 to match the default OC Agent port.
• Add support for recording gRPC stats.
• Add support for recording HTTP stats.
• Enforce --strictNullChecks and --noUnusedLocals Compiler Options on [opencensus-instrumentation-http], [opencensus-instrumentation-grpc] and [opencensus-propagation-tracecontext] packages.
• Enforce --strictNullChecks and --noUnusedLocals Compiler Options on [opencensus-exporter-zipkin] packages.
• Add NoRecordRootSpan, NoRecordSpan and NoRecordSpanBase.
• Enforce --strictNullChecks and --noUnusedLocals Compiler Options on [opencensus-exporter-instana] package.
• Add an API globalStats.unregisterExporter().
• Add support for overriding sampling for a span.
• Enforce --strictNullChecks and --noUnusedLocals Compiler Options on [opencensus-exporter-jaeger] packages.
• Add support for recording Exemplars.
• Add TagMetadata that defines the properties associated with a Tag.
• Add HTTP/W3C text format serializer to Tag propagation component.
• Enforce --strictNullChecks and --noUnusedLocals Compiler Options on [opencensus-core] package.
• Please note that there is an API breaking change in methods addMessageEvent(). The field id is now number instead of string.
• Add support for recording exemplars.
• Add a NoRecord RootSpan and Span.
• Add support for child span count.
• Add [opencensus-instrumentation-ioredis] instrumentation plugin.
• Make Stackdriver propagation module consistent with other propagations interface.
• Add support for gRPC tags propagation.
• Use ts-mocha to run tests.
• Add MetricOptions to simplify all addXGauge.

0.0.9 - 2019-02-12

• Add Metrics API.
• Add Resource API.
• Add Tags API.
• Add Gauges (DoubleGauge, LongGauge, DerivedDoubleGauge, DerivedLongGauge) APIs.
• Add support for supplying instrumentation configuration via tracing option. Option argument added to instrumentation interface.
• Add ignoreIncomingPaths and ignoreOutgoingUrls support to the http and https tracing instrumentations.
• Add opencensus-resource-util to auto detect AWS, GCE and Kubernetes(K8S) monitored resource, based on the environment where the application is running.
• Add optional uncompressedSize and compressedSize fields to MessageEvent interface.
• Add a setStatus method in the Span.
• OpenCensus Stackdriver Trace Exporter is updated to use Stackdriver Trace V2 APIs.

This release has multiple breaking changes. Please test your code accordingly after upgrading.

• Modify Logger interface: level made optional, silly removed.
• The new Stats() has been deprecated on Stats class. The global singleton globalStats object should be used instead. Also, registerView() is separated out from createView().
• Use TagKey, TagValue and TagMap to create the tag keys, tag values.
• The status field on Span is no longer a number, use CanonicalCode instead.
• Add enum type for MessageEvent, Link and SpanKind, instead of string.

Old code

const { Stats } = require("@opencensus/core");
const stats = new Stats();

// Counts/groups the lengths of lines read in.
const mLineLengths = stats.createMeasureInt64(
  "demo/line_lengths",
  MeasureUnit.BYTE,
  "The distribution of line lengths"
);

// Create tag keys
const tagKeys = ["method", "status"];

// Create and register the view
stats.createView(
  "demo/lines_in",
  mLineLengths,
  AggregationType.COUNT,
  tagKeys,
  "The number of lines from standard input"
);

// Records measurements
stats.record({
  measure: mLineLengths,
  tags,
  value: 2
});

New code

// Gets the global stats instance
const { globalStats } = require("@opencensus/core");

// Counts/groups the lengths of lines read in.
const mLineLengths = globalStats.createMeasureInt64(
  "demo/line_lengths",
  MeasureUnit.BYTE,
  "The distribution of line lengths"
);

// Creates the method and status key
const methodKey = {name: "method"};
const statusKey = {name: "status"};

// Creates the view
const view = globalStats.createView(
  "demo/lines_in",
  mLineLengths,
  AggregationType.COUNT,
  [methodKey, statusKey],
  "The number of lines from standard input"
);

// Registers the view
globalStats.registerView(view);

// Creates tags map -> key/value pair
const tagMap = new TagMap();
tagMap.set(methodKey, {value: 'REPL'});
tagMap.set(statusKey, {value: 'OK'});

// Creates measurements (measure + value)
const measurements = [{
  measure: mLineLengths,
  value: 2
}];

// Records measurement with tagMap
globalStats.record(measurements, tagMap);

0.0.8 - 2018-12-14

Contains API breaking changes for stats/metrics implementations

• Enforce --noUnusedLocals Compiler Options on [opencensus-core] package.
• Fix bugs related to Stackdriver Metrics Descriptor and TimeSeries.
• Remove support for min/max in the stats Distribution to make it compatible with Metrics.
• Remove default prefix from [exporter-prometheus]. This could be a breaking change if you have Prometheus metrics from OpenCensus Prometheus exporter of previous versions, please point to the new metrics with no prefix instead.
• Zipkin exporter: Convert "timestamp" and "duration" to "number" type per spec.
• Exporter/Stats/Prometheus: Sanitize metric names.

0.0.7 - 2018-11-12

Contains API breaking changes for stats/metrics implementations

• The histogram bucket boundaries (BucketBoundaries) and values (Count and Sum) are no longer supported for negative values. The Record API drops the negative value and logs the warning. This could be a breaking change if you are recording negative value for any measure.
• Use setInterval to upload metrics to Stackdriver periodically.
• fix spanId format.

0.0.6 - 2018-10-25

• This release fixes bugs.
• Use object as base for local config definition [nodejs].

0.0.5 - 2018-10-19

Contains API breaking changes for stats/metrics implementations

• Add RELEASING.md.
• Add @opencensus/opencensus-exporter-ocagent.
• Allow users to report metrics for their registered domain (using custom prefix). This could be a breaking change if you have custom prefix without (registered) domain.
• Add 1 minute delay on record for [exporter-stackdriver].
• Add stats support to zpages exporter.
• Add a default zipkin url.
• Update depp-extend package to fix vulnerability.
• Remove redundant range min/max from distributedValues for [exporter-stackdriver].

0.0.4 - 2018-08-29

• This release fixes bugs and makes API changes in the core, exporter-stackdriver and exporter-jaeger projects. Notably, the core module has added a new Stats API, and the Stackdriver Exporter now supports exporting stats to Stackdriver Monitoring.