import appInsights = require("applicationinsights");
appInsights.setup("<instrumentation_key>").start();

import appInsights = require("applicationinsights");
appInsights.setup("<instrumentation_key>")
    .setAutoCollectRequests(false)
    .setAutoCollectPerformance(false)
    .setAutoCollectExceptions(false)
    // no telemetry will be sent until .start() is called
    .start();

import appInsights = require("applicationinsights");
var client = appInsights.getClient();

client.trackEvent("custom event", {customProperty: "custom property value"});
client.trackException(new Error("handled exceptions can be logged with this method"));
client.trackMetric("custom metric", 3);
client.trackTrace("trace message");

public addTelemetryProcessor(telemetryProcessor: (envelope: ContractsModule.Contracts.Envelope) => boolean)

appInsights.client.addTelemetryProcessor((envelope) => {
    if (envelope.data.baseType === "Microsoft.ApplicationInsights.ExceptionData") {
        var data = envelope.data.baseData;
        if (data.exceptions && data.exceptions.length > 0) {
            for(var i = 0; i < data.exceptions.length; i++) {
                var exception = data.exceptions[i];
                exception.parsedStack = null;
                exception.hasFullStack = false;
            }
        }
    }
    return true;
});

import appInsights = require("applicationinsights");

// configure auto-collection with one instrumentation key
appInsights.setup("<instrumentation_key>").start();

// get a client for another instrumentation key
var otherClient = appInsights.getClient("<other_instrumentation_key>");
otherClient.trackEvent("custom event");

import appInsights = require("applicationinsights");
var client = appInsights.getClient();

var startTime = Date.now();
// execute dependency call
var endTime = Date.now();

var elapsedTime = endTime - startTime;
var success = true;
client.trackDependency("dependency name", "command name", elapsedTime, success);

var http = require("http");
var appInsights = require("applicationinsights");
appInsights.setup("<instrumentation_key>")
    .setAutoCollectRequests(false) // disable auto-collection of requests for this example
    .start();

// assign common properties to all telemetry sent from the default client
appInsights.client.commonProperties = {
    environment: process.env.SOME_ENV_VARIABLE
};

// track a system startup event
appInsights.client.trackEvent("server start");

// create server
var port = process.env.port || 1337
var server = http.createServer(function (req, res) {
    // track all "GET" requests
    if(req.method === "GET") {
        appInsights.client.trackRequest(req, res);
    }

    res.writeHead(200, { "Content-Type": "text/plain" });
    res.end("Hello World\n");
}).listen(port);

// track startup time of the server as a custom metric
var start = +new Date;
server.on("listening", () => {
    var end = +new Date;
    var duration = end - start;
    appInsights.client.trackMetric("StartupTime", duration);
});