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

Multiplayer otlp core

import { ReadableLogRecord } from '@opentelemetry/sdk-logs'
import {
  createExportLogsServiceRequest,
  ISerializer,
  IExportLogsServiceResponse,
} from '@opentelemetry/otlp-transformer'
import { MULTIPLAYER_TRACE_DEBUG_PREFIX } from './constants.base'

export const MultiplayerJsonLogsSerializer: ISerializer<
ReadableLogRecord[],
IExportLogsServiceResponse
> = {
  serializeRequest: (arg: ReadableLogRecord[]) => {
    const filteredArg = arg.filter(logRecord => logRecord?.spanContext?.traceId
      ?.startsWith(MULTIPLAYER_TRACE_DEBUG_PREFIX))

    const request = createExportLogsServiceRequest(filteredArg, {
      useHex: true,
      useLongBits: false,
    })
    const encoder = new TextEncoder()
    return encoder.encode(JSON.stringify(request))
  },
  deserializeResponse: (arg: Uint8Array) => {
    const decoder = new TextDecoder()
    return JSON.parse(decoder.decode(arg)) as IExportLogsServiceResponse
  },
}