How to use the io-functions-commons/dist/src/utils/application_insights.TelemetryClient function in io-functions-commons

import { createQueueService } from "azure-storage";
import { TelemetryClient } from "io-functions-commons/dist/src/utils/application_insights";
import { getRequiredStringEnv } from "io-functions-commons/dist/src/utils/env";
import { configureAzureContextTransport } from "io-functions-commons/dist/src/utils/logging";
import { MESSAGE_QUEUE_NAME } from "./created_message_queue_handler";
import { EMAIL_NOTIFICATION_QUEUE_NAME } from "./emailnotifications_queue_handler";
import { getQueueMetadata } from "./utils/azure_queues";
import { WEBHOOK_NOTIFICATION_QUEUE_NAME } from "./webhook_queue_handler";

const queueConnectionString = getRequiredStringEnv("QueueStorageConnection");
const queueService = createQueueService(queueConnectionString);

// Whether we're in a production environment
const isProduction = process.env.NODE_ENV === "production";

const appInsightsClient = new TelemetryClient();

// needed otherwise AI will wait for the batching loop to end
// see https://github.com/Microsoft/ApplicationInsights-node.js/issues/390
// tslint:disable-next-line:no-object-mutation
appInsightsClient.config.maxBatchSize = 1;

/**
 * A function to store the length of Azure Storage Queues
 * into Application Insights Metrics.
 *
 * To query these values in the Analytics panel type:
 *
 * customMetrics
 *   | where * has  "queue.length"
 *   | order by timestamp desc
 */

import {
  newSenderService,
  SENDER_SERVICE_COLLECTION_NAME,
  SenderServiceModel
} from "io-functions-commons/dist/src/models/sender_service";

import { wrapCustomTelemetryClient } from "io-functions-commons/dist/src/utils/application_insights";

import { ulidGenerator } from "io-functions-commons/dist/src/utils/strings";

// Whether we're in a production environment
const isProduction = process.env.NODE_ENV === "production";

const getCustomTelemetryClient = wrapCustomTelemetryClient(
  isProduction,
  new TelemetryClient()
);

// Setup DocumentDB
const cosmosDbUri = getRequiredStringEnv("CUSTOMCONNSTR_COSMOSDB_URI");
const cosmosDbKey = getRequiredStringEnv("CUSTOMCONNSTR_COSMOSDB_KEY");
const cosmosDbName = getRequiredStringEnv("COSMOSDB_NAME");

const documentDbDatabaseUrl = documentDbUtils.getDatabaseUri(cosmosDbName);
const profilesCollectionUrl = documentDbUtils.getCollectionUri(
  documentDbDatabaseUrl,
  PROFILE_COLLECTION_NAME
);
const messagesCollectionUrl = documentDbUtils.getCollectionUri(
  documentDbDatabaseUrl,
  MESSAGE_COLLECTION_NAME
);

diffInMilliseconds,
  wrapCustomTelemetryClient
} from "io-functions-commons/dist/src/utils/application_insights";
import { NonEmptyString } from "italia-ts-commons/lib/strings";
import { UrlFromString } from "italia-ts-commons/lib/url";
import { CreatedMessageWithContent } from "./api/definitions/CreatedMessageWithContent";
import { HttpsUrl } from "./api/definitions/HttpsUrl";
import { MessageContent } from "./api/definitions/MessageContent";
import { SenderMetadata } from "./api/definitions/SenderMetadata";

// Whether we're in a production environment
const isProduction = process.env.NODE_ENV === "production";

const getCustomTelemetryClient = wrapCustomTelemetryClient(
  isProduction,
  new TelemetryClient()
);

// Setup DocumentDB

const cosmosDbUri = getRequiredStringEnv("CUSTOMCONNSTR_COSMOSDB_URI");
const cosmosDbKey = getRequiredStringEnv("CUSTOMCONNSTR_COSMOSDB_KEY");
const cosmosDbName = getRequiredStringEnv("COSMOSDB_NAME");

const documentDbDatabaseUrl = documentDbUtils.getDatabaseUri(cosmosDbName);

const notificationsCollectionUrl = documentDbUtils.getCollectionUri(
  documentDbDatabaseUrl,
  NOTIFICATION_COLLECTION_NAME
);

const notificationStatusCollectionUrl = documentDbUtils.getCollectionUri(

t.interface({
    bindings: t.partial({ notificationEvent: t.object })
  })
);

type ContextWithBindings = t.TypeOf & Context;

// HTTP external requests timeout in milliseconds
const DEFAULT_REQUEST_TIMEOUT_MS = 10000;

// Whether we're in a production environment
const isProduction = process.env.NODE_ENV === "production";

const getCustomTelemetryClient = wrapCustomTelemetryClient(
  isProduction,
  new TelemetryClient()
);

// Needed to call notifications API
const publicApiUrl = getRequiredStringEnv("PUBLIC_API_URL");
const publicApiKey = getRequiredStringEnv("PUBLIC_API_KEY");

type WelcomeMessages = ReadonlyArray<(p: ExtendedProfile) => NewMessage>;

// TODO: internal links
// TODO: switch text based on user's preferred_language
const welcomeMessages: WelcomeMessages = [
  (_: ExtendedProfile) =>
    NewMessage.decode({
      content: {
        markdown: `## Benvenuto su IO, l'applicazione dei servizi pubblici, ora in fase beta!

} from "io-functions-commons/dist/src/models/sender_service";
import {
  GetService,
  GetServicesByRecipient,
  GetVisibleServices
} from "./controllers/services";

import { TelemetryClient } from "io-functions-commons/dist/src/utils/application_insights";
import { wrapCustomTelemetryClient } from "io-functions-commons/dist/src/utils/application_insights";

// Whether we're in a production environment
const isProduction = process.env.NODE_ENV === "production";

const getCustomTelemetryClient = wrapCustomTelemetryClient(
  isProduction,
  new TelemetryClient()
);

// Setup Express
const app = express();
secureExpressApp(app);

// Set up CORS (free access to the API from browser clients)
app.use(cors());

// Setup DocumentDB

const cosmosDbUri = getRequiredStringEnv("CUSTOMCONNSTR_COSMOSDB_URI");
const cosmosDbKey = getRequiredStringEnv("CUSTOMCONNSTR_COSMOSDB_KEY");
const cosmosDbName = getRequiredStringEnv("COSMOSDB_NAME");
const messageContainerName = getRequiredStringEnv("MESSAGE_CONTAINER_NAME");

} from "io-functions-commons/dist/src/models/notification_status";
import { TelemetryClient } from "io-functions-commons/dist/src/utils/application_insights";
import {
  diffInMilliseconds,
  wrapCustomTelemetryClient
} from "io-functions-commons/dist/src/utils/application_insights";
import { NonEmptyString } from "italia-ts-commons/lib/strings";

import * as SendgridTransport from "nodemailer-sendgrid-transport";

// Whether we're in a production environment
const isProduction = process.env.NODE_ENV === "production";

const getCustomTelemetryClient = wrapCustomTelemetryClient(
  isProduction,
  new TelemetryClient()
);

// Setup DocumentDB

const cosmosDbUri = getRequiredStringEnv("CUSTOMCONNSTR_COSMOSDB_URI");
const cosmosDbKey = getRequiredStringEnv("CUSTOMCONNSTR_COSMOSDB_KEY");
const cosmosDbName = getRequiredStringEnv("COSMOSDB_NAME");

const documentDbDatabaseUrl = documentDbUtils.getDatabaseUri(cosmosDbName);

const notificationsCollectionUrl = documentDbUtils.getCollectionUri(
  documentDbDatabaseUrl,
  NOTIFICATION_COLLECTION_NAME
);

const notificationStatusCollectionUrl = documentDbUtils.getCollectionUri(