WsRequestor: reconnect if socket dropped from far end

Dockerfile

@@ -1,4 +1,4 @@
-FROM node:slim
+FROM node:lts-slim
 WORKDIR /opt/app/
 COPY package.json package-lock.json ./
 RUN npm ci

lib/http-routes/api/create-call.js

@@ -14,12 +14,12 @@ const dbUtils = require('../../utils/db-utils');
 router.post('/', async(req, res) => {
   const {logger} = req.app.locals;
   const accountSid = req.body.account_sid;
+  const {srf} = require('../../..');
 
   logger.debug({body: req.body}, 'got createCall request');
   try {
     let uri, cs, to;
     const restDial = makeTask(logger, {'rest:dial': req.body});
-    const {srf} = require('../../..');
     const {lookupAccountDetails} = dbUtils(logger, srf);
     const {getSBC, getFreeswitch} = srf.locals;
     const sbcAddress = getSBC();
@@ -77,7 +77,7 @@ router.post('/', async(req, res) => {
     if (target.type === 'phone' && target.trunk) {
       const {lookupCarrier} = dbUtils(this.logger, srf);
       const voip_carrier_sid = await lookupCarrier(req.body.account_sid, target.trunk);
-      this.logger.info(
+      logger.info(
         `createCall: selected ${voip_carrier_sid} for requested carrier: ${target.trunk || 'unspecified'})`);
       if (voip_carrier_sid) {
         opts.headers['X-Requested-Carrier-Sid'] = voip_carrier_sid;
@@ -118,15 +118,25 @@ router.post('/', async(req, res) => {
      * attach our requestor and notifier objects
      * these will be used for all http requests we make during this call
      */
-    if ('WS' === app.call_hook?.method) {
+    if ('WS' === app.call_hook?.method || /^wss?:/.test(app.call_hook.url)) {
+      logger.debug({call_hook: app.call_hook}, 'creating websocket for call hook');
       app.requestor = new WsRequestor(logger, account.account_sid, app.call_hook, account.webhook_secret) ;
-      app.notifier = app.requestor;
+      if (app.call_hook.url === app.call_status_hook.url  || !app.call_status_hook?.url) {
+        logger.debug('reusing websocket for call status hook');
+        app.notifier = app.requestor;
+      }
     }
     else {
+      logger.debug({call_hook: app.call_hook}, 'creating http client for call hook');
       app.requestor = new HttpRequestor(logger, account.account_sid, app.call_hook, account.webhook_secret);
-      if (app.call_status_hook) app.notifier = new HttpRequestor(logger, account.account_sid, app.call_status_hook,
-        account.webhook_secret);
-      else app.notifier = {request: () => {}};
+    }
+    if (!app.notifier && app.call_status_hook) {
+      app.notifier = new HttpRequestor(logger, account.account_sid, app.call_status_hook, account.webhook_secret);
+      logger.debug({call_hook: app.call_hook}, 'creating http client for call status hook');
+    }
+    else if (!app.notifier) {
+      logger.debug('creating null call status hook');
+      app.notifier = {request: () => {}};
     }
 
     /* now launch the outdial */
@@ -230,6 +240,7 @@ router.post('/', async(req, res) => {
         else console.error(err);
       }
       ep.destroy();
+      setTimeout(restDial.kill.bind(restDial), 5000);
     }
   } catch (err) {
     sysError(logger, res, err);

lib/tasks/dial.js

@@ -606,8 +606,8 @@ class TaskDial extends Task {
     if (this.parentDtmfCollector) this._installDtmfDetection(cs, cs.dlg);
     if (this.childDtmfCollector) this._installDtmfDetection(cs, this.dlg);
 
-    if (this.transcribeTask) this.transcribeTask.exec(cs, this.ep);
-    if (this.listenTask) this.listenTask.exec(cs, this.ep);
+    if (this.transcribeTask) this.transcribeTask.exec(cs, this.epOther);
+    if (this.listenTask) this.listenTask.exec(cs, this.epOther);
 
     /* if we can release the media back to the SBC, do so now */
     if (this.canReleaseMedia) this._releaseMedia(cs, sd);

lib/tasks/gather.js

@@ -36,8 +36,18 @@ class TaskGather extends Task {
       this.language = recognizer.language;
       this.hints = recognizer.hints || [];
       this.hintsBoost = recognizer.hintsBoost;
-      this.altLanguages = recognizer.altLanguages || [];
+      this.profanityFilter = recognizer.profanityFilter;
       this.punctuation = !!recognizer.punctuation;
+      this.enhancedModel = !!recognizer.enhancedModel;
+      this.model = recognizer.model || 'command_and_search';
+      this.words = !!recognizer.words;
+      this.singleUtterance = recognizer.singleUtterance || true;
+      this.diarization = !!recognizer.diarization;
+      this.diarizationMinSpeakers = recognizer.diarizationMinSpeakers || 0;
+      this.diarizationMaxSpeakers = recognizer.diarizationMaxSpeakers || 0;
+      this.interactionType = recognizer.interactionType || 'unspecified';
+      this.naicsCode = recognizer.naicsCode || 0;
+      this.altLanguages = recognizer.altLanguages || [];
 
       /* vad: if provided, we dont connect to recognizer until voice activity is detected */
       const {enable, voiceMs = 0, mode = -1} = recognizer.vad || {};
@@ -232,24 +242,35 @@ class TaskGather extends Task {
 
     if ('google' === this.vendor) {
       if (this.sttCredentials) opts.GOOGLE_APPLICATION_CREDENTIALS = JSON.stringify(this.sttCredentials.credentials);
-      Object.assign(opts, {
-        GOOGLE_SPEECH_USE_ENHANCED: true,
-        GOOGLE_SPEECH_SINGLE_UTTERANCE: true,
-        GOOGLE_SPEECH_MODEL: 'command_and_search',
-        GOOGLE_SPEECH_ENABLE_AUTOMATIC_PUNCTUATION: !!this.punctuation
+      [
+        ['enhancedModel', 'GOOGLE_SPEECH_USE_ENHANCED'],
+        ['separateRecognitionPerChannel', 'GOOGLE_SPEECH_SEPARATE_RECOGNITION_PER_CHANNEL'],
+        ['profanityFilter', 'GOOGLE_SPEECH_PROFANITY_FILTER'],
+        ['punctuation', 'GOOGLE_SPEECH_ENABLE_AUTOMATIC_PUNCTUATION'],
+        ['words', 'GOOGLE_SPEECH_ENABLE_WORD_TIME_OFFSETS'],
+        ['singleUtterance', 'GOOGLE_SPEECH_SINGLE_UTTERANCE'],
+        ['diarization', 'GOOGLE_SPEECH_PROFANITY_FILTER']
+      ].forEach((arr) => {
+        if (this[arr[0]]) opts[arr[1]] = true;
       });
-      if (this.hints && this.hints.length > 1) {
-        opts.GOOGLE_SPEECH_HINTS = this.hints.map((h) => h.trim()).join(',');
+      if (this.hints.length > 1) {
+        opts.GOOGLE_SPEECH_HINTS = this.hints.join(',');
         if (typeof this.hintsBoost === 'number') {
           opts.GOOGLE_SPEECH_HINTS_BOOST = this.hintsBoost;
         }
       }
-      if (this.altLanguages && this.altLanguages.length > 0) {
-        opts.GOOGLE_SPEECH_ALTERNATIVE_LANGUAGE_CODES = this.altLanguages.join(',');
+      if (this.altLanguages.length > 1) opts.GOOGLE_SPEECH_ALTERNATIVE_LANGUAGE_CODES = this.altLanguages.join(',');
+      if ('unspecified' !== this.interactionType) {
+        opts.GOOGLE_SPEECH_METADATA_INTERACTION_TYPE = this.interactionType;
       }
-      if (this.profanityFilter === true) {
-        Object.assign(opts, {'GOOGLE_SPEECH_PROFANITY_FILTER': true});
+      opts.GOOGLE_SPEECH_MODEL = this.model;
+      if (this.diarization && this.diarizationMinSpeakers > 0) {
+        opts.GOOGLE_SPEECH_SPEAKER_DIARIZATION_MIN_SPEAKER_COUNT = this.diarizationMinSpeakers;
       }
+      if (this.diarization && this.diarizationMaxSpeakers > 0) {
+        opts.GOOGLE_SPEECH_SPEAKER_DIARIZATION_MAX_SPEAKER_COUNT = this.diarizationMaxSpeakers;
+      }
+      if (this.naicsCode > 0) opts.GOOGLE_SPEECH_METADATA_INDUSTRY_NAICS_CODE = this.naicsCode;
       ep.addCustomEventListener(GoogleTranscriptionEvents.Transcription, this._onTranscription.bind(this, cs, ep));
       ep.addCustomEventListener(GoogleTranscriptionEvents.EndOfUtterance, this._onEndOfUtterance.bind(this, cs, ep));
       ep.addCustomEventListener(GoogleTranscriptionEvents.VadDetected, this._onVadDetected.bind(this, cs, ep));
@@ -280,6 +301,9 @@ class TaskGather extends Task {
       if (this.hints && this.hints.length > 1) {
         opts.AZURE_SPEECH_HINTS = this.hints.map((h) => h.trim()).join(',');
       }
+      if (this.altLanguages && this.altLanguages.length > 0) {
+        opts.AZURE_SPEECH_ALTERNATIVE_LANGUAGE_CODES = this.altLanguages.join(',');
+      }
       if (this.requestSnr) opts.AZURE_REQUEST_SNR = 1;
       if (this.profanityOption && this.profanityOption !== 'raw') opts.AZURE_PROFANITY_OPTION = this.profanityOption;
       if (this.azureServiceEndpoint) opts.AZURE_SERVICE_ENDPOINT = this.azureServiceEndpoint;
@@ -365,8 +389,10 @@ class TaskGather extends Task {
         // don't sort based on confidence: https://github.com/Azure-Samples/cognitive-services-speech-sdk/issues/1463
         //const nbest = evt.NBest.sort((a, b) => b.Confidence - a.Confidence);
         const nbest = evt.NBest;
+        const language_code = evt.PrimaryLanguage?.Language || this.language;
         evt = {
           is_final: true,
+          language_code,
           alternatives: [
             {
               confidence: nbest[0].Confidence,

lib/tasks/rest_dial.js

@@ -50,7 +50,7 @@ class TaskRestDial extends Task {
     try {
       const b3 = this.getTracingPropagation();
       const httpHeaders = b3 && {b3};
-      const tasks = await cs.requestor.request('verb:hook', this.call_hook, cs.callInfo, httpHeaders);
+      const tasks = await cs.requestor.request('session:new', this.call_hook, cs.callInfo, httpHeaders);
       if (tasks && Array.isArray(tasks)) {
         this.logger.debug({tasks: tasks}, `TaskRestDial: replacing application with ${tasks.length} tasks`);
         cs.replaceApplication(normalizeJambones(this.logger, tasks).map((tdata) => makeTask(this.logger, tdata)));

lib/tasks/specs.json

@@ -448,6 +448,7 @@
           "tag"
         ]
       },
+      "model": "string",
       "outputFormat": {
         "type": "string",
         "enum": [

lib/tasks/transcribe.js

@@ -32,7 +32,9 @@ class TaskTranscribe extends Task {
     this.profanityFilter = recognizer.profanityFilter;
     this.punctuation = !!recognizer.punctuation;
     this.enhancedModel = !!recognizer.enhancedModel;
+    this.model = recognizer.model || 'phone_call';
     this.words = !!recognizer.words;
+    this.singleUtterance = recognizer.singleUtterance || false;
     this.diarization = !!recognizer.diarization;
     this.diarizationMinSpeakers = recognizer.diarizationMinSpeakers || 0;
     this.diarizationMaxSpeakers = recognizer.diarizationMaxSpeakers || 0;
@@ -136,6 +138,7 @@ class TaskTranscribe extends Task {
         ['profanityFilter', 'GOOGLE_SPEECH_PROFANITY_FILTER'],
         ['punctuation', 'GOOGLE_SPEECH_ENABLE_AUTOMATIC_PUNCTUATION'],
         ['words', 'GOOGLE_SPEECH_ENABLE_WORD_TIME_OFFSETS'],
+        ['singleUtterance', 'GOOGLE_SPEECH_SINGLE_UTTERANCE'],
         ['diarization', 'GOOGLE_SPEECH_PROFANITY_FILTER']
       ].forEach((arr) => {
         if (this[arr[0]]) opts[arr[1]] = true;
@@ -149,15 +152,8 @@ class TaskTranscribe extends Task {
       if (this.altLanguages.length > 1) opts.GOOGLE_SPEECH_ALTERNATIVE_LANGUAGE_CODES = this.altLanguages.join(',');
       if ('unspecified' !== this.interactionType) {
         opts.GOOGLE_SPEECH_METADATA_INTERACTION_TYPE = this.interactionType;
-
-        // additionally set model if appropriate
-        if ('phone_call' === this.interactionType) opts.GOOGLE_SPEECH_MODEL = 'phone_call';
-        else if (['voice_search', 'voice_command'].includes(this.interactionType)) {
-          opts.GOOGLE_SPEECH_MODEL = 'command_and_search';
-        }
-        else opts.GOOGLE_SPEECH_MODEL = 'phone_call';
       }
-      else opts.GOOGLE_SPEECH_MODEL = 'phone_call';
+      opts.GOOGLE_SPEECH_MODEL = this.model;
       if (this.diarization && this.diarizationMinSpeakers > 0) {
         opts.GOOGLE_SPEECH_SPEAKER_DIARIZATION_MIN_SPEAKER_COUNT = this.diarizationMinSpeakers;
       }
@@ -208,6 +204,7 @@ class TaskTranscribe extends Task {
       if (this.hints && this.hints.length > 1) {
         opts.AZURE_SPEECH_HINTS = this.hints.map((h) => h.trim()).join(',');
       }
+      if (this.altLanguages.length > 1) opts.AZURE_SPEECH_ALTERNATIVE_LANGUAGE_CODES = this.altLanguages.join(',');
       if (this.requestSnr) opts.AZURE_REQUEST_SNR = 1;
       if (this.profanityOption !== 'raw') opts.AZURE_PROFANITY_OPTION = this.profanityOption;
       if (this.initialSpeechTimeoutMs > 0) opts.AZURE_INITIAL_SPEECH_TIMEOUT_MS = this.initialSpeechTimeoutMs;
@@ -230,10 +227,11 @@ class TaskTranscribe extends Task {
   }
 
   _onTranscription(cs, ep, evt) {
-    this.logger.debug(evt, 'TaskTranscribe:_onTranscription');
+    this.logger.debug({evt}, 'TaskTranscribe:_onTranscription');
     if ('aws' === this.vendor && Array.isArray(evt) && evt.length > 0) evt = evt[0];
     if ('microsoft' === this.vendor) {
       const nbest = evt.NBest;
+      const language_code = evt.PrimaryLanguage?.Language || this.language;
       const alternatives = nbest ? nbest.map((n) => {
         return {
           confidence: n.Confidence,
@@ -248,6 +246,7 @@ class TaskTranscribe extends Task {
 
       const newEvent = {
         is_final: evt.RecognitionStatus === 'Success',
+        language_code,
         alternatives
       };
       evt = newEvent;

lib/utils/ws-requestor.js

@@ -14,8 +14,11 @@ class WsRequestor extends BaseRequestor {
     this.connections = 0;
     this.messagesInFlight = new Map();
     this.maliciousClient = false;
-    this.closedByUs = false;
+    this.closedGracefully = false;
     this.backoffMs = 500;
+    this.connectInProgress = false;
+    this.queuedMsg = [];
+    this.id = short.generate();
 
     assert(this._isAbsoluteUrl(this.url));
 
@@ -41,6 +44,10 @@ class WsRequestor extends BaseRequestor {
       this.logger.info({url: this.url}, 'WsRequestor:request - discarding msg to malicious client');
       return;
     }
+    if (this.closedGracefully) {
+      this.logger.debug(`WsRequestor:request - discarding ${type} because we closed the socket`);
+      return;
+    }
 
     if (type === 'session:new') this.call_sid = params.callSid;
 
@@ -53,6 +60,14 @@ class WsRequestor extends BaseRequestor {
 
     /* connect if necessary */
     if (!this.ws) {
+      if (this.connectInProgress) {
+        this.logger.debug(
+          `WsRequestor:request(${this.id}) - queueing ${type} message since we are connecting`);
+        this.queuedMsg.push({type, hook, params, httpHeaders});
+        return;
+      }
+      this.connectInProgress = true;
+      this.logger.debug(`WsRequestor:request(${this.id}) - connecting since we do not have a connection`);
       if (this.connections >= MAX_RECONNECTS) {
         throw new Error(`max attempts connecting to ${this.url}`);
       }
@@ -63,13 +78,16 @@ class WsRequestor extends BaseRequestor {
         this.stats.histogram('app.hook.connect_time', rtt, ['hook_type:app']);
       } catch (err) {
         this.logger.info({url, err}, 'WsRequestor:request - failed connecting');
+        this.connectInProgress = false;
         throw err;
       }
     }
     assert(this.ws);
 
     /* prepare and send message */
-    const payload = params ? snakeCaseKeys(params, ['customerData', 'sip']) : null;
+    let payload = params ? snakeCaseKeys(params, ['customerData', 'sip']) : null;
+    if (type === 'session:new') this._sessionData = payload;
+    if (type === 'session:reconnect') payload = this._sessionData;
     assert.ok(url, 'WsRequestor:request url was not provided');
 
     const msgid = short.generate();
@@ -83,12 +101,23 @@ class WsRequestor extends BaseRequestor {
       ...b3
     };
 
+    const sendQueuedMsgs = () => {
+      if (this.queuedMsg.length > 0) {
+        for (const {type, hook, params, httpHeaders} of this.queuedMsg) {
+          this.logger.debug(`WsRequestor:request - preparing queued ${type} for sending`);
+          setImmediate(this.request.bind(this, type, hook, params, httpHeaders));
+        }
+        this.queuedMsg.length = 0;
+      }
+    };
+
     //this.logger.debug({obj}, `websocket: sending (${url})`);
 
     /* simple notifications */
-    if (['call:status', 'jambonz:error'].includes(type)) {
+    if (['call:status', 'jambonz:error', 'session:reconnect'].includes(type)) {
       this.ws.send(JSON.stringify(obj), () => {
         this.logger.debug({obj}, `WsRequestor:request websocket: sent (${url})`);
+        sendQueuedMsgs();
       });
       return;
     }
@@ -122,15 +151,16 @@ class WsRequestor extends BaseRequestor {
       /* send the message */
       this.ws.send(JSON.stringify(obj), () => {
         this.logger.debug({obj}, `WsRequestor:request websocket: sent (${url})`);
+        sendQueuedMsgs();
       });
     });
   }
 
   close() {
-    this.closedByUs = true;
+    this.closedGracefully = true;
+    this.logger.info('WsRequestor:close closing socket');
     try {
       if (this.ws) {
-        this.logger.info('WsRequestor:close closing socket');
         this.ws.close();
         this.ws.removeAllListeners();
       }
@@ -163,9 +193,8 @@ class WsRequestor extends BaseRequestor {
 
       this
         .once('ready', (ws) => {
-          this.ws = ws;
           this.removeAllListeners('not-ready');
-          if (this.connections > 0) this.request('session:reconnect', this.url);
+          if (this.connections > 1) this.request('session:reconnect', this.url);
           resolve();
         })
         .once('not-ready', (err) => {
@@ -178,6 +207,7 @@ class WsRequestor extends BaseRequestor {
   }
 
   _setHandlers(ws) {
+    this.logger.debug('WsRequestor:_setHandlers');
     ws
       .once('open', this._onOpen.bind(this, ws))
       .once('close', this._onClose.bind(this))
@@ -194,18 +224,23 @@ class WsRequestor extends BaseRequestor {
   }
 
   _onOpen(ws) {
+    this.logger.info({url: this.url}, `WsRequestor(${this.id}) - successfully connected`);
     if (this.ws) this.logger.info({old_ws: this.ws._socket.address()}, 'WsRequestor:_onOpen');
     assert(!this.ws);
+    this.ws = ws;
+    this.connectInProgress = false;
+    this.connections++;
     this.emit('ready', ws);
-    this.logger.info({url: this.url}, 'WsRequestor - successfully connected');
   }
 
-  _onClose() {
-    if (this.connections > 0) {
+  _onClose(code) {
+    this.logger.info(`WsRequestor(${this.id}) - closed from far end ${code}`);
+    if (this.connections > 0 && code !== 1000) {
       this.logger.info({url: this.url}, 'WsRequestor - socket closed unexpectedly from remote side');
       this.emit('socket-closed');
     }
-    this.ws && this.ws.removeAllListeners();
+    else if (code === 1000) this.closedGracefully = true;
+    this.ws?.removeAllListeners();
     this.ws = null;
   }
 
@@ -223,8 +258,17 @@ class WsRequestor extends BaseRequestor {
   _onSocketClosed() {
     this.ws = null;
     this.emit('connection-dropped');
-    if (this.connections++ > 0 && this.connections < MAX_RECONNECTS && !this.closedByUs) {
-      setTimeout(this._connect.bind(this), this.backoffMs);
+    if (this.connections > 0 && this.connections < MAX_RECONNECTS && !this.closedGracefully) {
+      this.logger.debug(`WsRequestor:_onSocketClosed waiting ${this.backoffMs} to reconnect`);
+      setTimeout(() => {
+        this.logger.debug(
+          {haveWs: !!this.ws, connectInProgress: this.connectInProgress},
+          'WsRequestor:_onSocketClosed time to reconnect');
+        if (!this.ws && !this.connectInProgress) {
+          this.connectInProgress = true;
+          this._connect().catch((err) => this.connectInProgress = false);
+        }
+      }, this.backoffMs);
       this.backoffMs = this.backoffMs < 2000 ? this.backoffMs * 2 : (this.backoffMs + 2000);
     }
   }

package-lock.json

@@ -13,7 +13,7 @@
         "@jambonz/db-helpers": "^0.6.16",
         "@jambonz/http-health-check": "^0.0.1",
         "@jambonz/mw-registrar": "^0.2.1",
-        "@jambonz/realtimedb-helpers": "^0.4.26",
+        "@jambonz/realtimedb-helpers": "^0.4.27",
         "@jambonz/stats-collector": "^0.1.6",
         "@jambonz/time-series": "^0.1.6",
         "@opentelemetry/api": "^1.1.0",
@@ -564,9 +564,9 @@
       }
     },
     "node_modules/@jambonz/realtimedb-helpers": {
-      "version": "0.4.26",
-      "resolved": "https://registry.npmjs.org/@jambonz/realtimedb-helpers/-/realtimedb-helpers-0.4.26.tgz",
-      "integrity": "sha512-vGNC5IsYj7Qj7mOfgfti0/ZouYs+9GHEX4v7w3JguPW1NqUbvFayPs3xo49di3NJsHV0NnKWx2rMgrZzvWTgTA==",
+      "version": "0.4.27",
+      "resolved": "https://registry.npmjs.org/@jambonz/realtimedb-helpers/-/realtimedb-helpers-0.4.27.tgz",
+      "integrity": "sha512-t1E5JIaWtPuAIRrLM73X+VpZLIacxzbSNBvjyAXm7DQ5wi/dFXfZDoxd3UJdzHtamHfser7ILXSNQxPchj6itw==",
       "dependencies": {
         "@google-cloud/text-to-speech": "^3.4.0",
         "@jambonz/promisify-redis": "^0.0.6",
@@ -6615,9 +6615,9 @@
       }
     },
     "@jambonz/realtimedb-helpers": {
-      "version": "0.4.26",
-      "resolved": "https://registry.npmjs.org/@jambonz/realtimedb-helpers/-/realtimedb-helpers-0.4.26.tgz",
-      "integrity": "sha512-vGNC5IsYj7Qj7mOfgfti0/ZouYs+9GHEX4v7w3JguPW1NqUbvFayPs3xo49di3NJsHV0NnKWx2rMgrZzvWTgTA==",
+      "version": "0.4.27",
+      "resolved": "https://registry.npmjs.org/@jambonz/realtimedb-helpers/-/realtimedb-helpers-0.4.27.tgz",
+      "integrity": "sha512-t1E5JIaWtPuAIRrLM73X+VpZLIacxzbSNBvjyAXm7DQ5wi/dFXfZDoxd3UJdzHtamHfser7ILXSNQxPchj6itw==",
       "requires": {
         "@google-cloud/text-to-speech": "^3.4.0",
         "@jambonz/promisify-redis": "^0.0.6",

package.json

@@ -30,7 +30,7 @@
     "@jambonz/db-helpers": "^0.6.16",
     "@jambonz/http-health-check": "^0.0.1",
     "@jambonz/mw-registrar": "^0.2.1",
-    "@jambonz/realtimedb-helpers": "^0.4.26",
+    "@jambonz/realtimedb-helpers": "^0.4.27",
     "@jambonz/stats-collector": "^0.1.6",
     "@jambonz/time-series": "^0.1.6",
     "@opentelemetry/api": "^1.1.0",