authOptions: {
//          //Use Azure Active Directory authentication. 
//          authType: 'anonymous', 
//          clientId: 'e6b6ab59-eb5d-4d25-aa57-581135b927f0', //Your Azure Maps client id for accessing your Azure Maps account. 
//          getToken: function (resolve, reject, map) { 
//              //URL to your authentication service that retrieves an Azure Active Directory Token. 
//              var tokenServiceUrl = "https://samples.azuremaps.com/api/GetAzureMapsToken"; 
//
//              fetch(tokenServiceUrl).then(r => r.text()).then(token => resolve(token)); 
//          } 

    //Alternatively, use an Azure Maps key. Get an Azure Maps key at https://azure.com/maps. NOTE: The primary key should be used as the key. 
    authType: 'subscriptionKey', 
    subscriptionKey:'[YOUR_AZURE_MAPS_KEY]' 
}

<input type="file" onchange="readFile(this)"> 

var data = [] 
function readFile(input) { 
    let file = input.files[0]; 
    let reader = new FileReader(); 
    reader.readAsText(file); 
    reader.onload = function () { 
        var csvdata = reader.result 
         var tmp = csvdata.split("\n"); 
         for (var i = 0; i < tmp.length; i++) { 
             //csvの1行のデータを取り出す 
            var row_data = tmp[i]; 
            data[i] = row_data.split(","); 
        } 
    }; 
    GetMap() 
}

for (var i = 1; i < data.length; i++) { 
    var aDataPoint = new atlas.data.Point([data[i][0], data[i][1]]) 
    let property = {} 
    for (var j = 0; j < data[i].length; j++) { 
        property[data[0][j]] = data[i][j]
    } 
    var aDataFeat = new atlas.data.Feature(aDataPoint, property) 
    datasource.add(aDataFeat) 
}

map = new atlas.Map('myMap', { 
center: [132.4, 34.4], 
    zoom: 10, 
    view: 'Auto',