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OAuth Authentication (without using ADAL) to Dynamics 365 using Azure Apps

Jayakar Reddy
13/06/2018 0 0

Here I am going to show without using ADAL(active directory authentication library) how to get the authentication token and how to connect to CRM from a standalone HTML Page using the web-API.

I will not explain in detail about how to register an APP in azure and give it access to Dynamics CRM.

Use below code to get the OAuth token once you’re done with Azure app registration

var microsoftTokenUrl = "https://login.microsoftonline.com/4060bfe9-7199-xxxxxxx-xxxxxxx/oauth2/token"; //Add your endpoint URL
var clientId = "xxxxxxxx-9715-xxxx-xxxx-3a1fac0cc5fe"; // Add your app ID
var clientSecret = "xxxxxxMJTQmtu4V73cRyduZ6vS40AlkAtSxxxxxxx";//Add your Secret Key
var resource = "https://xxxxxxx.crm5.dynamics.com";//Add your CRM Url
var grantType = "client_credentials";
function GetAuthroisationToken() {
var token=null;
url: microsoftTokenUrl,
type: "POST",
contentType: "application/x-www-form-urlencoded",
crossDomain: true,
dataType: "json",
async: false,
data: {
'resource': resource,
'client_id': clientId,
'client_secret': clientSecret,
'grant_type': grantType
beforeSend: function (XMLHttpRequest) {
XMLHttpRequest.setRequestHeader("Accept", "application/json");
success: function (data, textStatus, xhr) {
token= data.access_token;
error: function (xhr, textStatus, errorThrown) {
return token;

Here is the sample code to create the lead in CRM (Design your HTML as your wish)

var entity = {};
entity.subject = $("#subject").val();
entity.firstname = $("#fname").val();
entity.lastname = $("#lname").val();
var salutation = $("#title option:selected").val();
entity.address1_postalcode = $("#postalcode").val();
entity.address1_city = $("#city").val();
entity.address1_stateorprovince = $("#state").val();
entity.address1_country = $("#country").val();
entity.address1_line1 = $("#address").val();
entity.emailaddress1 = $("#email").val();
entity.telephone1 = $("#phone").val();
entity.companyname = $("#company").val();
entity.jobtitle = $("#function").val();
entity.leadsourcecode = 8;
var token = GetAuthroisationToken();
webApi_Create("leads", entity, false,token);
function webApi_Create(entityName,entityObject,isAsync,token)
var newEntityId = null;
type: "POST",
contentType: "application/json; charset=utf-8",
datatype: "json",
url: resource + "/api/data/v8.2/" + entityName,
data: JSON.stringify(entityObject),
beforeSend: function (XMLHttpRequest) {
XMLHttpRequest.setRequestHeader("OData-MaxVersion", "4.0");
XMLHttpRequest.setRequestHeader("OData-Version", "4.0");
XMLHttpRequest.setRequestHeader("Accept", "application/json");
XMLHttpRequest.setRequestHeader("Authorization", "Bearer " + token);
async: isAsync,
success: function (data, textStatus, xhr) {
var uri = xhr.getResponseHeader("OData-EntityId");
var regExp = /\(([^)]+)\)/;
var matches = regExp.exec(uri);
newEntityId = matches[1];
if (newEntityId !== null)
alert("Record Created!");
error: function (xhr, textStatus, errorThrown) {
alert(textStatus + " " + errorThrown);
return newEntityId;

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