@multiplayer-app/otlp-core/src/MultiplayerHttpTraceExporterNode.ts

Multiplayer otlp core

import {
  ReadableSpan,
  SpanExporter,
} from '@opentelemetry/sdk-trace-base'
import {
  createOtlpHttpExportDelegate,
  convertLegacyHttpOptions,
} from '@opentelemetry/otlp-exporter-base/node-http'
import {
  OTLPExporterNodeConfigBase,
  OTLPExporterBase,
} from '@opentelemetry/otlp-exporter-base'
import { MultiplayerJsonTraceSerializer } from './MultiplayerJsonTraceSerializer'
import { MULTIPLAYER_OTEL_DEFAULT_TRACES_EXPORTER_URL } from './constants.base'

interface MultiplayerExporterNodeConfig
  extends OTLPExporterNodeConfigBase {
  apiKey?: string
}

/**
 * Collector Trace Exporter for Web
 */
export class MultiplayerHttpTraceExporterNode
  extends OTLPExporterBase<ReadableSpan[]>
  implements SpanExporter
{
  constructor(config: MultiplayerExporterNodeConfig = {}) {
    const _config = {
      ...config,
      url: config.url || MULTIPLAYER_OTEL_DEFAULT_TRACES_EXPORTER_URL,
      headers: {
        ...(config.headers || {}),
        ...config.apiKey
          ? { Authorization: config.apiKey }
          : {},
      },
    }

    super(
      createOtlpHttpExportDelegate(
        convertLegacyHttpOptions(_config, 'TRACES', 'v1/traces', {
          'User-Agent': 'Multiplayer-OTel-OTLP-Exporter-JavaScript-TRACES',
          'Content-Type': 'application/json',
        }),
        MultiplayerJsonTraceSerializer,
      ),
    )
  }
}