@multiplayer-app/otlp-core NPM

Multiplayer OpenTelemetry Core

This package provides implementations of the OpenTelemetry API for trace and metrics. It's intended for use both on the server and in the browser.

Built-in Implementations

Multiplayer OpenTelemetry Core
- Built-in Implementations
- License

Constants

import {
  MULTIPLAYER_TRACE_DOC_PREFIX,
  MULTIPLAYER_TRACE_DEBUG_PREFIX,
  MULTIPLAYER_OTEL_DEFAULT_TRACES_EXPORTER_URL,
  MULTIPLAYER_OTEL_DEFAULT_LOGS_EXPORTER_URL,
  MULTIPLAYER_ATTRIBUTE_PREFIX,
  MULTIPLAYER_MAX_HTTP_REQUEST_RESPONSE_SIZE,
  ATTR_MULTIPLAYER_DEBUG_SESSION,
  ATTR_MULTIPLAYER_HTTP_REQUEST_BODY,
  ATTR_MULTIPLAYER_HTTP_RESPONSE_BODY,
  ATTR_MULTIPLAYER_HTTP_REQUEST_HEADERS,
  ATTR_MULTIPLAYER_HTTP_RESPONSE_HEADERS,
} from '@multiplayer-app/otlp-core'

Multiplayer Filter Trace Exporter

Wrapper for node otlp exporter. This wrapper removes span attributes with multiplayer. prefix.

import { BasicTracerProvider, BatchSpanProcessor } from '@opentelemetry/sdk-trace-base';
import { MultiplayerHttpTraceExporterNode } from '@multiplayer-app/otlp-core';
import { OTLPTraceExporter } from '@opentelemetry/exporter-trace-otlp-http';

const multiplayerTraceExporter = new MultiplayerHttpTraceExporterNode({
  apiKey: MULTIPLAYER_OTLP_KEY
})

const apmProviderTraceExporter = new OTLPTraceExporter({
  url: 'http://some.apm/v1/traces',
})

const apmFilteredTraceExporter = new MultiplayerFilterTraceExporter(apmProviderTraceExporter)

const provider = new BasicTracerProvider({
  spanProcessors: [
    new BatchSpanProcessor(apmFilteredTraceExporter),
    new BatchSpanProcessor(multiplayerTraceExporter),
  ]
});

provider.register();

Multiplayer Grpc Trace Exporter Node

import { BasicTracerProvider, BatchSpanProcessor } from '@opentelemetry/sdk-trace-base';
import { MultiplayerGrpcTraceExporterNode } from '@multiplayer-app/otlp-core';

const collectorOptions = {
  url: '<opentelemetry-collector-url>', // url is optional and can be omitted - default is https://api.multiplayer.app/v1/traces
  apiKey: '<multiplayer-otlp-key>', // api key from multiplayer integration
};

const exporter = new MultiplayerGrpcTraceExporterNode(collectorOptions);
const provider = new BasicTracerProvider({
  spanProcessors: [
    new BatchSpanProcessor(exporter, {
      // The maximum queue size. After the size is reached spans are dropped.
      maxQueueSize: 1000,
      // The interval between two consecutive exports
      scheduledDelayMillis: 30000,
    })
  ]
});

provider.register();

Multiplayer Http Instrumentation Hooks Node

Multiplayer hooks for nodejs http instrumentation for injecting http request/response headers and payload to span.

import { getNodeAutoInstrumentations } from '@opentelemetry/auto-instrumentations-node'
import { type Instrumentation } from '@opentelemetry/instrumentation'
import { MultiplayerHttpInstrumentationHooks } from '@multiplayer-app/otlp-core'

export const instrumentations: Instrumentation[] = getNodeAutoInstrumentations({
  '@opentelemetry/instrumentation-http': {
    enabled: true,
    responseHook: MultiplayerHttpInstrumentationHooks.responseHook({
      headersToMask: ['<my-auth-header>'],
      maxPayloadSize: 5000,
      schemifyDocSpanPayload: true,
      maskDebSpanPayload: true,
      uncompressPayload: true
    }),
    requestHook: MultiplayerHttpInstrumentationHooks.requestHook({
      headersToMask: ['<my-auth-header>'],
      maxPayloadSize: 5000,
      schemifyDocSpanPayload: true,
      maskDebSpanPayload: true
    }),
  },
)

Multiplayer Http Logs exporter node

Multiplayer json serializer for logs exporter which filters out logs which doesn't begin with debug prefix from being sent to collector.

import { LoggerProvider } from '@opentelemetry/sdk-logs'
import { 
  MultiplayerHttpLogExporterNode
} from '@multiplayer-app/otlp-core'

const loggerProvider = new LoggerProvider({
  resource,
})

const logExporter = new MultiplayerHttpLogExporterNode({
  url: '<opentelemetry-collector-url>', // url is optional and can be omitted - default is https://api.multiplayer.app/v1/traces
  apiKey: '<multiplayer-otlp-key>', // api key from multiplayer integration
})

const logRecordProcessor = return new BatchLogRecordProcessor(logExporter)

loggerProvider.addLogRecordProcessor(logRecordProcessor)
apiLogs.logs.setGlobalLoggerProvider(loggerProvider)

Multiplayer Http Trace exporter web

import {
  BatchSpanProcessor,
  WebTracerProvider,
} from '@opentelemetry/sdk-trace-web';
import { MultiplayerHttpTraceExporterBrowser } from '@multiplayer-app/otlp-core';

const collectorOptions = {
  url: '<opentelemetry-collector-url>', // url is optional and can be omitted - default is https://api.multiplayer.app/v1/traces
  apiKey: '<multiplayer-otlp-key>', // api key from multiplayer integration
};

const exporter = new MultiplayerHttpTraceExporterBrowser(collectorOptions);
const provider = new WebTracerProvider({
  spanProcessors: [
    new BatchSpanProcessor(exporter, {
      // The maximum queue size. After the size is reached spans are dropped.
      maxQueueSize: 100,
      // The maximum batch size of every export. It must be smaller or equal to maxQueueSize.
      maxExportBatchSize: 10,
      // The interval between two consecutive exports
      scheduledDelayMillis: 500,
      // How long the export can run before it is cancelled
      exportTimeoutMillis: 30000,
    })
  ]
});

provider.register();

Multiplayer Http Trace exporter node

import { BasicTracerProvider, BatchSpanProcessor } from '@opentelemetry/sdk-trace-base';
import { MultiplayerHttpTraceExporterNode } from '@multiplayer-app/otlp-core';

const collectorOptions = {
  url: '<opentelemetry-collector-url>', // url is optional and can be omitted - default is https://api.multiplayer.app/v1/traces
  apiKey: '<multiplayer-otlp-key>', // api key from multiplayer integration
};

const exporter = new MultiplayerHttpTraceExporterNode(collectorOptions);
const provider = new BasicTracerProvider({
  spanProcessors: [
    new BatchSpanProcessor(exporter, {
      // The maximum queue size. After the size is reached spans are dropped.
      maxQueueSize: 1000,
      // The interval between two consecutive exports
      scheduledDelayMillis: 30000,
    })
  ]
});

provider.register();

Multiplayer id generator

Multiplayer introduces 2 kind of traces: debug and doc, they have d0cd0c and debdeb prefixes in traceId accordingly. Multiplayer Id generator will set debdeb prefix to traceId if debug session id was set using method setSessionId. Put documentation traces ratio to constructor, by default it's 0.

import {
  BatchSpanProcessor,
  WebTracerProvider,
} from '@opentelemetry/sdk-trace-web';
import {
  MultiplayerIdGenerator,
  MultiplayerExporterBrowser
} from '@multiplayer-app/otlp-core';

const idGenerator = new MultiplayerIdGenerator({ autoDocTracesRatio: 0.05 })

const collectorOptions = {
  url: '<opentelemetry-collector-url>', // url is optional and can be omitted - default is https://api.multiplayer.app/v1/traces
  apiKey: '<multiplayer-otlp-key>', // api key from multiplayer integration
};

const exporter = new MultiplayerExporterBrowser(collectorOptions);
const provider = new WebTracerProvider({
  spanProcessors: [
    new BatchSpanProcessor(exporter, {
      // The maximum queue size. After the size is reached spans are dropped.
      maxQueueSize: 100,
      // The maximum batch size of every export. It must be smaller or equal to maxQueueSize.
      maxExportBatchSize: 10,
      // The interval between two consecutive exports
      scheduledDelayMillis: 500,
      // How long the export can run before it is cancelled
      exportTimeoutMillis: 30000,
    })
  ],
  idGenerator
});

idGenerator.setSessionId('<multiplayer-debug-session-short-id>')

Multiplayer Json Trace serializer

Multiplayer json serializer for exporter filters out traces which doesn't begin with debug or document prefix from being sent to collector.

import {
  ReadableSpan,
  SpanExporter,
} from '@opentelemetry/sdk-trace-base'
import {
  OTLPExporterConfigBase,
  OTLPExporterBrowserBase,
} from '@opentelemetry/otlp-exporter-base'
import {
  IExportTraceServiceResponse,
} from '@opentelemetry/otlp-transformer'
import { 
  MultiplayerJsonTraceSerializer,
  MULTIPLAYER_OTEL_DEFAULT_TRACES_EXPORTER_URL
} from '@multiplayer-app/otlp-core'

interface MultiplayerExporterConfig
  extends OTLPExporterConfigBase {
  apiKey?: string
}

export class MultiplayerHttpExporter
  extends OTLPExporterBrowserBase<ReadableSpan, IExportTraceServiceResponse>
  implements SpanExporter
{
  constructor(config: MultiplayerExporterConfig = {}) {
    super(
      {
        ...config,
        url: config.url || MULTIPLAYER_OTEL_DEFAULT_TRACES_EXPORTER_URL,
        headers: {},
      },
      MultiplayerJsonTraceSerializer,
      { 'Content-Type': 'application/json' },
      '',
    )
  }

  getDefaultUrl(config: OTLPExporterConfigBase): string {
    return config.url || MULTIPLAYER_OTEL_DEFAULT_TRACES_EXPORTER_URL
  }
}

Trace id ratio based sampler

Multiplayer sampler will always sample debug and document traces with appropriate prefixes, other traces will be sampled using ration provided to constructor.

import {
  BatchSpanProcessor,
  WebTracerProvider,
} from '@opentelemetry/sdk-trace-web';
import {
  MultiplayerTraceIdRatioBasedSampler,
  MultiplayerExporterBrowser
} from '@multiplayer-app/otlp-core';

const collectorOptions = {
  url: '<opentelemetry-collector-url>', // url is optional and can be omitted - default is https://api.multiplayer.app/v1/traces
  apiKey: '<multiplayer-otlp-key>', // api key from multiplayer integration
};

const exporter = new MultiplayerExporterBrowser(collectorOptions);
const provider = new WebTracerProvider({
  spanProcessors: [
    new BatchSpanProcessor(exporter, {
      // The maximum queue size. After the size is reached spans are dropped.
      maxQueueSize: 100,
      // The maximum batch size of every export. It must be smaller or equal to maxQueueSize.
      maxExportBatchSize: 10,
      // The interval between two consecutive exports
      scheduledDelayMillis: 500,
      // How long the export can run before it is cancelled
      exportTimeoutMillis: 30000,
    })
  ],
  sampler: new MultiplayerTraceIdRatioBasedSampler(0.05)
});