Walkthrough: Registering and configuring SimpleSPA application with adal.js

Articol
01/03/2017

Applies To: Dynamics 365 (online), Dynamics 365 (on-premises), Dynamics CRM 2016, Dynamics CRM Online

This walkthrough describes the process of registering and configuring the simplest Single Page Application (SPA) to access data in Microsoft Dynamics CRM Online 2016 Update using adal.js and Cross-origin Resource Sharing (CORS). More information: Use OAuth with Cross-Origin Resource Sharing to connect a Single Page Application to Microsoft Dynamics 365.

Prerequisites

Microsoft Dynamics CRM Online 2016 Update
You must have a Microsoft Dynamics 365 (online) system user account with administrator role for the Microsoft Office 365.
A Microsoft Azure subscription for application registration. A trial account will also work.
Microsoft Visual Studio 2015

Goal of this walkthrough

When you complete this walkthrough you will be able to run a simple SPA application in Visual Studio that will provide the ability for a user to authenticate and retrieve data from Microsoft Dynamics 365 (online). This application consists of a single HTML page.

When you debug the application initially there will only be a Login button.

Click Login and you will be re-directed to a sign-in page to enter your credentials.

After you enter your credentials you will be directed back to the HTML page where you will find the Login button is hidden and a Logout button and a Get Accounts button are visible. You will also see a greeting using information from your user account.

Click the Get Accounts button to retrieve 10 account records from your Microsoft Dynamics 365 organization. The Get Accounts button is disabled as shown in the following screenshot:

The SimpleSPA page

Note

The initial load of data from Microsoft Dynamics 365 may be slow as the operations to support authentication take place, but subsequent operations are much faster.

Finally, you can click the Logout button to logout.

Note

This SPA application is not intended to represent a pattern for developing robust SPA applications. It is simplified to focus on the process of registering and configuring the application.

Create a web application project

Using Microsoft Visual Studio 2015, create a new ASP.NET Web Application project and use the Empty template. You can name the project whatever you like.

You should be able to use earlier versions of Microsoft Visual Studio as well, but these steps will describe using Visual Studio 2015.

Add a new HTML page named SimpleSPA.html to the project and paste in the following code:

<!DOCTYPE html>
<html>
<head>
 <title>Simple SPA</title>
 <meta charset="utf-8" />
 <script src="https://secure.aadcdn.microsoftonline-p.com/lib/1.0.0/js/adal.min.js"></script>
 <script type="text/javascript">
  "use strict";

  //Set these variables to match your environment
  var organizationURI = "https:// [organization name].crm.dynamics.com"; //The URL to connect to CRM (online)
  var tenant = "[xxx.onmicrosoft.com]"; //The name of the Azure AD organization you use
  var clientId = "[client id]"; //The ClientId you got when you registered the application
  var pageUrl = "https://localhost: [PORT #]/SimpleSPA.html"; //The URL of this page in your development environment when debugging.


  var user, authContext, message, errorMessage, loginButton, logoutButton, getAccountsButton, accountsTable, accountsTableBody;

  //Configuration data for AuthenticationContext
  var endpoints = {
   orgUri: organizationURI
  };

  window.config = {
   tenant: tenant,
   clientId: clientId,
   postLogoutRedirectUri: pageUrl,
   endpoints: endpoints,
   cacheLocation: 'localStorage', // enable this for IE, as sessionStorage does not work for localhost.
  };


  document.onreadystatechange = function () {
   if (document.readyState == "complete") {

    //Set DOM elements referenced by scripts
    message = document.getElementById("message");
    errorMessage = document.getElementById("errorMessage");
    loginButton = document.getElementById("login");
    logoutButton = document.getElementById("logout");
    getAccountsButton = document.getElementById("getAccounts");
    accountsTable = document.getElementById("accountsTable");
    accountsTableBody = document.getElementById("accountsTableBody");

    //Event handlers on DOM elements
    loginButton.addEventListener("click", login);
    logoutButton.addEventListener("click", logout);
    getAccountsButton.addEventListener("click", getAccounts);

    //call authentication function
    authenticate();

    if (user) {
     loginButton.style.display = "none";
     logoutButton.style.display = "block";
     getAccountsButton.style.display = "block";

     var helloMessage = document.createElement("p");
     helloMessage.textContent = "Hello " + user.profile.name;
     message.appendChild(helloMessage)

    }
    else {
     loginButton.style.display = "block";
     logoutButton.style.display = "none";
     getAccountsButton.style.display = "none";
    }

   }
  }

  // Function that manages authentication
  function authenticate() {
   //OAuth context
   authContext = new AuthenticationContext(config);

   // Check For & Handle Redirect From AAD After Login
   var isCallback = authContext.isCallback(window.location.hash);
   if (isCallback) {
    authContext.handleWindowCallback();
   }
   var loginError = authContext.getLoginError();

   if (isCallback && !loginError) {
    window.location = authContext._getItem(authContext.CONSTANTS.STORAGE.LOGIN_REQUEST);
   }
   else {
    errorMessage.textContent = loginError;
   }
   user = authContext.getCachedUser();

  }

  //function that logs in the user
  function login() {
   authContext.login();
  }
  //function that logs out the user
  function logout() {
   authContext.logOut();
   accountsTable.style.display = "none";
   accountsTableBody.innerHTML = "";
  }


//function that initiates retrieval of accounts
  function getAccounts() {

   getAccountsButton.disabled = true;
   var retrievingAccountsMessage = document.createElement("p");
   retrievingAccountsMessage.textContent = "Retrieving 10 accounts from " + organizationURI + "/api/data/v8.0/accounts";
   message.appendChild(retrievingAccountsMessage)

   // Function to perform operation is passed as a parameter to the aquireToken method
   authContext.acquireToken(organizationURI, retrieveAccounts)

  }


//Function that actually retrieves the accounts
  function retrieveAccounts(error, token) {
   // Handle ADAL Errors.
   if (error || !token) {
    errorMessage.textContent = 'ADAL error occurred: ' + error;
    return;
   }

   var req = new XMLHttpRequest()
   req.open("GET", encodeURI(organizationURI + "/api/data/v8.0/accounts?$select=name,address1_city&$top=10"), true);
   //Set Bearer token
   req.setRequestHeader("Authorization", "Bearer " + token);
   req.setRequestHeader("Accept", "application/json");
   req.setRequestHeader("Content-Type", "application/json; charset=utf-8");
   req.setRequestHeader("OData-MaxVersion", "4.0");
   req.setRequestHeader("OData-Version", "4.0");
   req.onreadystatechange = function () {
    if (this.readyState == 4 /* complete */) {
     req.onreadystatechange = null;
     if (this.status == 200) {
      var accounts = JSON.parse(this.response).value;
      renderAccounts(accounts);
     }
     else {
      var error = JSON.parse(this.response).error;
      console.log(error.message);
      errorMessage.textContent = error.message;
     }
    }
   };
   req.send();
  }
  //Function that writes account data to the accountsTable
  function renderAccounts(accounts) {
   accounts.forEach(function (account) {
    var name = account.name;
    var city = account.address1_city;
    var nameCell = document.createElement("td");
    nameCell.textContent = name;
    var cityCell = document.createElement("td");
    cityCell.textContent = city;
    var row = document.createElement("tr");
    row.appendChild(nameCell);
    row.appendChild(cityCell);
    accountsTableBody.appendChild(row);
   });
   accountsTable.style.display = "block";
  }

 </script>
 <style>
  body {
   font-family: 'Segoe UI';
  }

  table {
   border-collapse: collapse;
  }

  td, th {
   border: 1px solid black;
  }

  #errorMessage {
   color: red;
  }

  #message {
   color: green;
  }
 </style>
</head>
<body>
 <button id="login">Login</button>
 <button id="logout" style="display:none;">Logout</button>
 <button id="getAccounts" style="display:none;">Get Accounts</button>
 <div id="errorMessage"></div>
 <div id="message"></div>
 <table id="accountsTable" style="display:none;">
  <thead><tr><th>Name</th><th>City</th></tr></thead>
  <tbody id="accountsTableBody"></tbody>
 </table>

</body>
</html>

Set this page as the start page for the project
In the properties of the project, select Web and under Servers note the Project URL. It should be something like https://localhost:46575/. Note the port number that is generated. You will need this in the next step.

Within the SimpleSPA.html page, locate the following configuration variables and set them accordingly. You will be able to set the clientId after you complete the next part of the walkthrough.

//Set these variables to match your environment
var organizationURI = "https://[organization name].crm.dynamics.com"; //The URL to connect to CRM (online)
var tenant = "[xxx.onmicrosoft.com]"; //The name of the Azure AD organization you use
var clientId = "[client id]"; //The ClientId you got when you registered the application
var pageUrl = "https://localhost:[PORT #]/SimpleSPA.html"; //The URL of this page in your development environment when debugging.

Register the application

Sign in to the Microsoft Azure management portal by using an account with administrator permission. You must use an account in the same Office 365 subscription (tenant) as you intend to register the app with. You can also access the Microsoft Azure portal through the Office 365 admin center by expanding the ADMIN item in the left navigation pane and selecting Azure AD.

If you don’t have an Azure tenant (account) or you do have one but your Office 365 subscription with Microsoft Dynamics 365 (online) is not available in your Azure subscription, following the instructions in the topic Set up Azure Active Directory access for your Developer Site to associate the two accounts.

If you don’t have an account, you can sign up for one by using a credit card. However, the account is free for application registration and your credit card won’t be charged if you only follow the procedures called out in this topic to register one or more apps. More information: Active Directory Pricing Details
Click Active Directory in the left column of the page. You may need to scroll the left column to see the Active Directory icon and label.
Click the desired tenant directory in the directory list.

If your Dynamics 365 tenant directory isn’t shown in the directory list, click Add, and then select Use existing directory in the dialog box. Follow the prompts and instructions provided, and then go back to step 1.
With the target directory selected, click Applications (near the top of the page), and then click Add.
In the What do you want to do? dialog box, click Add an application my organization is developing.
When prompted, enter a name for your application, for example ‘SimpleSPA’, pick the type: Web Application and/or Web API, and then click the right arrow to continue. Click a question mark ? for more information on the appropriate values for each input field.
Enter the following information :
- Sign-on URL
  This is the URL which the user should be redirected to after they sign in. For debugging purposes in Visual Studio it should be https://localhost:####/SimpleSPA.html where #### represents the port number you got from step 4 of the Create a web application project procedure.
- APP ID URI
  This must be a unique identifier for the application. Use https://XXXX.onmicrosoft.com/SimpleSPA where XXXX is the Active Directory tenant.
With the tab of the newly registered app selected, click Configure, locate the Client id and copy it.

Set the clientId variable in the SimpleSPA.html page to this value. Refer to step 5 of the Create a web application project procedure.
Scroll to the bottom of the page and click Add application. In the dialog box select Dynamics 365 Online and close the dialog box.
Under permissions to other applications, you will find a row for Dynamics 365 Online and Delegated Permissions: 0. Select this and add Access Dynamics 365 (online) as organization users.
Save the application registration
At the bottom, select Manage Manifest and choose Download Manifest.
Open the JSON file you downloaded and locate the line: "oauth2AllowImplicitFlow": false, and change false to true and save the file.
Go back to Manage Manifest again. Choose Upload Manifest and upload the JSON file you just saved.

Debugging the application

Set the browser to use Microsoft Edge, Google Chrome, or Mozilla Firefox.

Note

Internet Explorer will not work for debugging in this situation.
Press F5 to start debugging. You should expect the behavior described in Goal of this walkthrough.

If you don’t get the results you expect, double-check the values you set when registering the application and configuring the SimpleSPA.html code.

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