Author Archives: svenor

Using Office PnP Core js with Angularjs

Angularjs is not the new kid on the block anymore and there are shinier Frameworks out there, but once in a while you have to deal with it. In my last project I used Angularjs in combination with Office PnP Core js. Office PnP Core js is great, but it uses ES6 Promises, which is really cool but unfortunate if you rely on Angularjs $q promises to fire up the digest cycle.

The Problem

Every time Office PnP Core js resolves a promise, we have to use scope.$apply to kick off the digest cycle and update our UI.

This is kind of anoying and error prone. If 2 requests finish nearly at the same time, it’s likely you will get a “a digest cycle is already in progress” exception.

The Solution

Luckily, Angular $q promises are ES6 compatible (“to some degree”) since Angular 1.3.x. Hence we can replace the Polyfill.

But be aware, that this will replace it for the whole browser window, other frameworks might need ES6 Promises anyway.

Create SVG React components using Adobe Experience Design

Creating beautiful and responsive web designs is a challenging task. HTML5 and CSS3 are out there for a while and are powerful tools for creating responsive web designs, but there’s another great technology for creating responsive designs as well: SVG! 🙂

I’m not going to show you all the things you can do with SVG, if you like a very good introduction I can recommend Sarah Drasners Talk SVG can do that?!.

Instead I’m going to show you how you can use Adobe Experience Design as a starting point to create svg graphics, which you than can easily mold into a reusable and configurable react component. This could basically work with any other design tool, such as Sketch, Figma etc, you named it – as long they allow you to export graphics as svg.

So, let’s start. First off, we need an Adobe XD Prototype containing elements we could turn into react components. For this blog post, I’m going to use something from www.uplabs.com.

For example Nandu G created a good looking Dashboard:

Pro Stats Dashboard

Pro Stats Dashboard from Nandu G

Especially the Profile View Diagram looks like a good candiate for a svg react component. So, lets start:

To export the elements as svg we need to select the group containing the elements, right click and then “Export…”.  As Format we must choose “svg”, The other options are not relevant for this example. After clicking export we can open the svg.

The svg is straight forward, now custom namespaces or anything like that. We can take this and put it into a React Stateless Functional Component:

import React from 'react';

export default (props) => (
  <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="12137 3868 440 430">
  <defs>
    <style>
      .cls-1, .cls-10, .cls-2, .cls-8, .cls-9 {
        fill: #fff;
      }

      .cls-1 {
        opacity: 0.05;
      }

      .cls-2 {
        font - size: 18px;
        font-family: SegoeUI-Bold, Segoe UI;
        font-weight: 700;
        letter-spacing: 0.1em;
        opacity: 0.6;
      }

      .cls-3 {
        opacity: 0.298;
      }

      .cls-3, .cls-4 {
        fill: url(#linear-gradient);
      }

      .cls-4 {
        opacity: 0.2;
      }

      .cls-10, .cls-5, .cls-9 {
        opacity: 0.4;
      }

      .cls-5 {
        fill: url(#linear-gradient-3);
      }

      .cls-6 {
        opacity: 0.5;
        fill: url(#linear-gradient-4);
      }

      .cls-7 {
        fill: #111529;
      }

      .cls-8 {
        font - size: 31px;
      }

      .cls-10, .cls-8, .cls-9 {
        font - family: SegoeUI, Segoe UI;
      }

      .cls-9 {
        font - size: 15px;
      }

      .cls-10 {
        font - size: 14px;
      }

      .cls-11 {
        fill: #16cec0;
      }

      .cls-12 {
        fill: #2d8dfd;
      }
    </style>
    <linearGradient id="linear-gradient" x1="0.5" x2="0.5" y2="1" gradientUnits="objectBoundingBox">
      <stop offset="0" stop-color="#16cec0" />
      <stop offset="1" stop-color="#2d8dfd" />
    </linearGradient>
    <linearGradient id="linear-gradient-3" x1="0.798" y1="-0.177" x2="0.283" y2="1.342" xlink:href="#linear-gradient"/>
    <linearGradient id="linear-gradient-4" x1="0.692" x2="0.5" y2="1" gradientUnits="objectBoundingBox">
      <stop offset="0" stop-color="#16cec0" />
      <stop offset="1" stop-color="#0062d5" />
    </linearGradient>
  </defs>
  <g id="Group_14" data-name="Group 14" transform="translate(12137 3868)">
    <rect id="Rectangle_5" data-name="Rectangle 5" class="cls-1" width="440" height="430" />
    <text id="PROFILE_VIEWS" data-name="PROFILE VIEWS" class="cls-2" transform="translate(40 54)"><tspan x="0" y="0">PROFILE VIEWS</tspan></text>
    <g id="Group_6" data-name="Group 6" transform="translate(89 79.244)">
      <g id="Group_5" data-name="Group 5" transform="translate(0 0)">
        <path id="Path_8" data-name="Path 8" class="cls-3" d="M49.97,48.808c18.3-25.5,6.732-39.034,26.444-46.1s27.18,8.618,51.577,8.618S162.132-6.667,179.373,2.7s1.863,26.69,17.58,46.1,38.113,7.3,45.286,31.549-16.6,36.406-16.6,65.435,28.164,28.764,16.6,48.155-34.3,12.621-62.866,29.409S153.73,258.511,127.99,261.1,99.849,242.346,76.413,233.7s-41.132,4.065-57.185-17.913-.077-37.105-7.028-70S-5.411,106.6,3.234,80.357,31.675,74.307,49.97,48.808Z" transform="translate(261.314 5.903) rotate(90)" />
        <path id="Path_5" data-name="Path 5" class="cls-4" d="M49.97,48.808c18.3-25.5,6.732-39.034,26.444-46.1s27.18,8.618,51.576,8.618S162.132-6.667,179.373,2.7s1.864,26.69,17.581,46.1,38.113,7.3,45.286,31.549-16.6,36.406-16.6,65.435,28.164,28.764,16.6,48.155-34.3,12.621-62.867,29.409S153.73,258.511,127.99,261.1,99.849,242.346,76.413,233.7s-41.132,4.065-57.185-17.913-.077-37.105-7.028-70S-5.411,106.6,3.233,80.357,31.675,74.307,49.97,48.808Z" transform="translate(261.314 5.903) rotate(90)" />
        <path id="Path_4" data-name="Path 4" class="cls-5" d="M44.041,39.159C59.835,18.327,49.853,7.27,66.869,1.5s23.464,7.041,44.525,7.041,40.354-9.752,55.237-2.1-9.271,16.86,4.3,32.719,32.9,5.966,39.095,25.774S195.7,94.674,195.7,118.39s16.75,35.343,6.764,51.185-22.052-1.533-46.709,12.181-19.525,18.97-41.745,21.084-26.906-5.57-47.137-12.63-49.955,18.118-63.174,0,13.742-44.947,7.741-71.819S-4.767,70.9,2.7,49.458,28.247,59.99,44.041,39.159Z" transform="matrix(0.966, -0.259, 0.259, 0.966, 0, 54.659)" />
        <path id="Path_3" data-name="Path 3" class="cls-6" d="M2555.706,835.7c15.777-19.9,5.806-30.47,22.8-35.988s23.44,6.728,44.479,6.728,29.444-14.043,44.312-6.728,1.608,20.835,15.162,35.988,32.869,5.7,39.054,24.627S2707.2,888.741,2707.2,911.4s24.289,22.453,14.313,37.59-29.584,9.852-54.216,22.957-22.114,27.442-44.312,29.461-24.269-14.638-44.479-21.384-49.9,17.312-63.109,0,13.728-42.948,7.733-68.625-15.188-30.6-7.733-51.079S2539.928,855.6,2555.706,835.7Z" transform="translate(-2489.581 -763.404)" />
        <line x1="0.5" y1="1" x2="0.5" y2="1" stroke="black" />
        <circle id="Ellipse_1" data-name="Ellipse 1" class="cls-7" cx="79.379" cy="79.379" r="79.379" transform="translate(50.679 54.563)" />
      </g>
      <text id="_9801" data-name="9801" class="cls-8" transform="translate(131 128.786)"><tspan x="-33.422" y="0">9801</tspan></text>
      <text id="New_Users" data-name="New Users" class="cls-9" transform="translate(130.999 158.209)"><tspan x="-35.054" y="0">New Users</tspan></text>
    </g>
    <g id="Group_7" data-name="Group 7" transform="translate(89 371)">
      <text id="_60_Followers" data-name="60% Followers" class="cls-10" transform="translate(19 15)"><tspan x="0" y="0">60% Followers</tspan></text>
      <circle id="Ellipse_2" data-name="Ellipse 2" class="cls-11" cx="4.5" cy="4.5" r="4.5" transform="translate(0 5)" />
    </g>
    <g id="Group_8" data-name="Group 8" transform="translate(231 371)">
      <text id="_40_New_Users" data-name="40% New Users" class="cls-10" transform="translate(19 15)"><tspan x="0" y="0">40% New Users</tspan></text>
      <circle id="Ellipse_2-2" data-name="Ellipse 2" class="cls-12" cx="4.5" cy="4.5" r="4.5" transform="translate(0 5)" />
    </g>
  </g>
</svg>)

But this will throw some errors, for example, JSX doesn’t support xml namespaces (like xlink:href) – Namespace tags are not supported, ReactJSX is not XML. Gladly, react allow to use camelCase notation, which will render the correct xml namespace. So all we have to do is to replace xmlns:xlink with xmlnsXlink and xlink:href with xmlHref.

The next problem comes from the style tag. The style definition contains curly braces, which causes some problems because JSX uses them to insert values from the component. The best way to solve this is to simply put the css style definitions where they belong, in a css file. One other workaround is described here: https://github.com/facebook/react/issues/2250#issuecomment-229468253

So, after this little modification our react components look like this:

import React from 'react';

export default (props) => (
  <svg xmlns="http://www.w3.org/2000/svg" xmlnXlink="http://www.w3.org/1999/xlink" viewBox="12137 3868 440 430">
  <defs>
    <linearGradient id="linear-gradient" x1="0.5" x2="0.5" y2="1" gradientUnits="objectBoundingBox">
      <stop offset="0" stop-color="#16cec0" />
      <stop offset="1" stop-color="#2d8dfd" />
    </linearGradient>
    <linearGradient id="linear-gradient-3" x1="0.798" y1="-0.177" x2="0.283" y2="1.342" xlinkHref="#linear-gradient"/>
    <linearGradient id="linear-gradient-4" x1="0.692" x2="0.5" y2="1" gradientUnits="objectBoundingBox">
      <stop offset="0" stop-color="#16cec0" />
      <stop offset="1" stop-color="#0062d5" />
    </linearGradient>
  </defs>
  <g id="Group_14" data-name="Group 14" transform="translate(12137 3868)">
    <rect id="Rectangle_5" data-name="Rectangle 5" class="cls-1" width="440" height="430" />
    <text id="PROFILE_VIEWS" data-name="PROFILE VIEWS" class="cls-2" transform="translate(40 54)"><tspan x="0" y="0">PROFILE VIEWS</tspan></text>
    <g id="Group_6" data-name="Group 6" transform="translate(89 79.244)">
      <g id="Group_5" data-name="Group 5" transform="translate(0 0)">
        <path id="Path_8" data-name="Path 8" class="cls-3" d="M49.97,48.808c18.3-25.5,6.732-39.034,26.444-46.1s27.18,8.618,51.577,8.618S162.132-6.667,179.373,2.7s1.863,26.69,17.58,46.1,38.113,7.3,45.286,31.549-16.6,36.406-16.6,65.435,28.164,28.764,16.6,48.155-34.3,12.621-62.866,29.409S153.73,258.511,127.99,261.1,99.849,242.346,76.413,233.7s-41.132,4.065-57.185-17.913-.077-37.105-7.028-70S-5.411,106.6,3.234,80.357,31.675,74.307,49.97,48.808Z" transform="translate(261.314 5.903) rotate(90)" />
        <path id="Path_5" data-name="Path 5" class="cls-4" d="M49.97,48.808c18.3-25.5,6.732-39.034,26.444-46.1s27.18,8.618,51.576,8.618S162.132-6.667,179.373,2.7s1.864,26.69,17.581,46.1,38.113,7.3,45.286,31.549-16.6,36.406-16.6,65.435,28.164,28.764,16.6,48.155-34.3,12.621-62.867,29.409S153.73,258.511,127.99,261.1,99.849,242.346,76.413,233.7s-41.132,4.065-57.185-17.913-.077-37.105-7.028-70S-5.411,106.6,3.233,80.357,31.675,74.307,49.97,48.808Z" transform="translate(261.314 5.903) rotate(90)" />
        <path id="Path_4" data-name="Path 4" class="cls-5" d="M44.041,39.159C59.835,18.327,49.853,7.27,66.869,1.5s23.464,7.041,44.525,7.041,40.354-9.752,55.237-2.1-9.271,16.86,4.3,32.719,32.9,5.966,39.095,25.774S195.7,94.674,195.7,118.39s16.75,35.343,6.764,51.185-22.052-1.533-46.709,12.181-19.525,18.97-41.745,21.084-26.906-5.57-47.137-12.63-49.955,18.118-63.174,0,13.742-44.947,7.741-71.819S-4.767,70.9,2.7,49.458,28.247,59.99,44.041,39.159Z" transform="matrix(0.966, -0.259, 0.259, 0.966, 0, 54.659)" />
        <path id="Path_3" data-name="Path 3" class="cls-6" d="M2555.706,835.7c15.777-19.9,5.806-30.47,22.8-35.988s23.44,6.728,44.479,6.728,29.444-14.043,44.312-6.728,1.608,20.835,15.162,35.988,32.869,5.7,39.054,24.627S2707.2,888.741,2707.2,911.4s24.289,22.453,14.313,37.59-29.584,9.852-54.216,22.957-22.114,27.442-44.312,29.461-24.269-14.638-44.479-21.384-49.9,17.312-63.109,0,13.728-42.948,7.733-68.625-15.188-30.6-7.733-51.079S2539.928,855.6,2555.706,835.7Z" transform="translate(-2489.581 -763.404)" />
        <line x1="0.5" y1="1" x2="0.5" y2="1" stroke="black" />
        <circle id="Ellipse_1" data-name="Ellipse 1" class="cls-7" cx="79.379" cy="79.379" r="79.379" transform="translate(50.679 54.563)" />
      </g>
      <text id="_9801" data-name="9801" class="cls-8" transform="translate(131 128.786)"><tspan x="-33.422" y="0">9801</tspan></text>
      <text id="New_Users" data-name="New Users" class="cls-9" transform="translate(130.999 158.209)"><tspan x="-35.054" y="0">New Users</tspan></text>
    </g>
    <g id="Group_7" data-name="Group 7" transform="translate(89 371)">
      <text id="_60_Followers" data-name="60% Followers" class="cls-10" transform="translate(19 15)"><tspan x="0" y="0">60% Followers</tspan></text>
      <circle id="Ellipse_2" data-name="Ellipse 2" class="cls-11" cx="4.5" cy="4.5" r="4.5" transform="translate(0 5)" />
    </g>
    <g id="Group_8" data-name="Group 8" transform="translate(231 371)">
      <text id="_40_New_Users" data-name="40% New Users" class="cls-10" transform="translate(19 15)"><tspan x="0" y="0">40% New Users</tspan></text>
      <circle id="Ellipse_2-2" data-name="Ellipse 2" class="cls-12" cx="4.5" cy="4.5" r="4.5" transform="translate(0 5)" />
    </g>
  </g>
</svg>)

This will render the demo component. All we have to do now is replace static text with real values. For example, the linear gradient offset should be adjusted to show how many profile views are from new users and how many are from people who follow us already. Also, the percentage at the bottom of the component should be updated accordingly to our users. The same goes for the “New User” counter in the center circle.

So let’s add some math and curly braces and voilà:

import React from 'react';

export default (props) => {
  const onePercent = (props.newUsers + props.followers) / 100;
  const newUserPercent = Math.round(props.newUsers / onePercent);
  const followerPercent = Math.round(props.followers / onePercent);
  return (<svg xmlns="http://www.w3.org/2000/svg" xmlnsXlink="http://www.w3.org/1999/xlink" viewBox="12137 3868 440 430">
    <defs>
      <linearGradient id="linear-gradient" x1="0.5" x2="0.5" y2="1" gradientUnits="objectBoundingBox">
        <stop offset={followerPercent / 100} stop-color="#16cec0" />
        <stop offset="1" stop-color="#2d8dfd" />
      </linearGradient>
      <linearGradient id="linear-gradient-3" x1="0.798" y1="-0.177" x2="0.283" y2="1.342" xlinkHref="#linear-gradient"/>
    <linearGradient id="linear-gradient-4" x1="0.692" x2="0.5" y2="1" gradientUnits="objectBoundingBox">
        <stop offset={followerPercent / 100} stop-color="#16cec0" />
        <stop offset="1" stop-color="#0062d5" />
      </linearGradient>
    </defs>
    <g id="Group_14" data-name="Group 14" transform="translate(12137 3868)">
      <rect id="Rectangle_5" data-name="Rectangle 5" class="cls-1" width="440" height="430" />
      <text id="PROFILE_VIEWS" data-name="PROFILE VIEWS" class="cls-2" transform="translate(40 54)"><tspan x="0" y="0">PROFILE VIEWS</tspan></text>
      <g id="Group_6" data-name="Group 6" transform="translate(89 79.244)">
        <g id="Group_5" data-name="Group 5" transform="translate(0 0)">
          <path id="Path_8" data-name="Path 8" class="cls-3" d="M49.97,48.808c18.3-25.5,6.732-39.034,26.444-46.1s27.18,8.618,51.577,8.618S162.132-6.667,179.373,2.7s1.863,26.69,17.58,46.1,38.113,7.3,45.286,31.549-16.6,36.406-16.6,65.435,28.164,28.764,16.6,48.155-34.3,12.621-62.866,29.409S153.73,258.511,127.99,261.1,99.849,242.346,76.413,233.7s-41.132,4.065-57.185-17.913-.077-37.105-7.028-70S-5.411,106.6,3.234,80.357,31.675,74.307,49.97,48.808Z" transform="translate(261.314 5.903) rotate(90)" />
          <path id="Path_5" data-name="Path 5" class="cls-4" d="M49.97,48.808c18.3-25.5,6.732-39.034,26.444-46.1s27.18,8.618,51.576,8.618S162.132-6.667,179.373,2.7s1.864,26.69,17.581,46.1,38.113,7.3,45.286,31.549-16.6,36.406-16.6,65.435,28.164,28.764,16.6,48.155-34.3,12.621-62.867,29.409S153.73,258.511,127.99,261.1,99.849,242.346,76.413,233.7s-41.132,4.065-57.185-17.913-.077-37.105-7.028-70S-5.411,106.6,3.233,80.357,31.675,74.307,49.97,48.808Z" transform="translate(261.314 5.903) rotate(90)" />
          <path id="Path_4" data-name="Path 4" class="cls-5" d="M44.041,39.159C59.835,18.327,49.853,7.27,66.869,1.5s23.464,7.041,44.525,7.041,40.354-9.752,55.237-2.1-9.271,16.86,4.3,32.719,32.9,5.966,39.095,25.774S195.7,94.674,195.7,118.39s16.75,35.343,6.764,51.185-22.052-1.533-46.709,12.181-19.525,18.97-41.745,21.084-26.906-5.57-47.137-12.63-49.955,18.118-63.174,0,13.742-44.947,7.741-71.819S-4.767,70.9,2.7,49.458,28.247,59.99,44.041,39.159Z" transform="matrix(0.966, -0.259, 0.259, 0.966, 0, 54.659)" />
          <path id="Path_3" data-name="Path 3" class="cls-6" d="M2555.706,835.7c15.777-19.9,5.806-30.47,22.8-35.988s23.44,6.728,44.479,6.728,29.444-14.043,44.312-6.728,1.608,20.835,15.162,35.988,32.869,5.7,39.054,24.627S2707.2,888.741,2707.2,911.4s24.289,22.453,14.313,37.59-29.584,9.852-54.216,22.957-22.114,27.442-44.312,29.461-24.269-14.638-44.479-21.384-49.9,17.312-63.109,0,13.728-42.948,7.733-68.625-15.188-30.6-7.733-51.079S2539.928,855.6,2555.706,835.7Z" transform="translate(-2489.581 -763.404)" />
          <circle id="Ellipse_1" data-name="Ellipse 1" class="cls-7" cx="79.379" cy="79.379" r="79.379" transform="translate(50.679 54.563)" />
        </g>
        <text id="_9801" data-name="9801" class="cls-8" transform="translate(131 128.786)"><tspan x="-33.422" y="0">{props.newUsers}</tspan></text>
        <text id="New_Users" data-name="New Users" class="cls-9" transform="translate(130.999 158.209)"><tspan x="-35.054" y="0">New Users</tspan></text>
      </g>
      <g id="Group_7" data-name="Group 7" transform="translate(89 371)">
        <text id="_60_Followers" data-name="60% Followers" class="cls-10" transform="translate(19 15)"><tspan x="0" y="0">{followerPercent}% Followers</tspan></text>
        <circle id="Ellipse_2" data-name="Ellipse 2" class="cls-11" cx="4.5" cy="4.5" r="4.5" transform="translate(0 5)" />
      </g>
      <g id="Group_8" data-name="Group 8" transform="translate(231 371)">
        <text id="_40_New_Users" data-name="40% New Users" class="cls-10" transform="translate(19 15)"><tspan x="0" y="0">{newUserPercent}% New Users</tspan></text>
        <circle id="Ellipse_2-2" data-name="Ellipse 2" class="cls-12" cx="4.5" cy="4.5" r="4.5" transform="translate(0 5)" />
      </g>
    </g>
  </svg>
)}

Usage:

<ProfileViews followers={4000} newUsers={4000} />

A next step could be to add some nix hover effects or animations.

As mentioned at the beginning, this exported assets are only a starting point for creating components. To make this workflow a little bit smoother here some tips:

  1. Before exporting a group from Adobe XD, create a new canvas with the height and width of this group and align the canvas to the 0,0 coordinates.
    Alignment of a canvas

    Alignment of a canvas in Adobe XD

    This yields much better translation coordinates in the exported svg. As in the example above the viewbox of the exported svg is set to viewBox=”12137 3868 440 430″, Also the Translation of “translate(12137 3868)” the first group is somewhat weird. Instead they should be viewBox=”0 0 440 430″ and translate(40 54). This trick is very helpful if you need to calculate translation in your component.

  2. The Naming of the group in the svg correlates directly to the naming in Adobe XD.  Creating the react component is a lot easier if you structure your prototype in Adobe XD nicely and give every element a descriptive name – I know, naming is a hard thing.

I created a codesandbox for this blog post sample, if you like, you can play a little bit with it.

 

Authenticate against an Azure Mobile Service app with ADAL.js

In one of my current projects I was trying to access a Azure Mobile Service from within a HTML Angular app. “Great!” I thought, let’s use ADAL.js and let the magic happen! So I installed ADAL.js, configured it and…..nothing, ADAL.js injects the Bearer token but I got a “401 unauthorize” from the Azure Mobile Service. After some research on the web I was able to get Azure Mobile Service authentication to work with an ADAL.js acquired authorization token.

The Setup

As mentioned above there are 2 “apps”, an HTML Angular app and an Azure Mobile Service app with a .NET backend. Both apps uses Azure Active Directory as the authentication backend, the following image shows this setup.

architecture

Azure Mobile Service app

We will start with the Azure Mobile Service app. Microsoft provides a detailed explanation on how to configure the windows azure active directory authentication for azure mobile service in this article.

After configuring the Azure Active Directory application for the Azure Mobile Service you only need to add the following configuration to the web.config of your Azure Mobile Service:

This options allows us to call the azure mobile service from the specified host (e.g. localhost). This option is only necessary if you like to call an Azure deployed Mobile Service app.

HTML app

After Creating the Azure Mobile Service AAD application we create a new AAD app for the HTML app with the following settings:

htmlapp_aad_1htmlapp_aad_2

Note: The APP-ID Url must not be a real URL, it’s more a unique identifier for your app. More Information about this here

After creating the Azure Active Directory app we can configure out HTML Angular app to use this AAD app with ADAL.js:

You can get the ClientID from the Azure Active Directory app:

htmlapp_aad_clientid

The redirectUri should also match the reply url you’ve configured in your Active Directory app:

htmlapp_aad_replyuri

For more information about how to use ADAL.js with Angular take a look at Vittorio Bertoccis blog post.

Another important step is to configure “oauth2AllowImplicitFlow” option in the AAD app Manifest. You can download this manifest from the “Configure” page of the AAD application:

manage_manifest

After downloading the manifest open it and set “oauth2AllowImplicitFlow” to “true”. This enables the OAuth client flow which is needed for client side (=javascript) authentication.

The last configuration we need to apply allows our HTML app to request access tokens for the Azure Mobile Service app. To do this we need to add the Azure Mobile Service app under “permissions to other applications” and delegate the “Access” permission:

access

Note: After clicking “Add application” you have to select “all Apps” to list all available apps.

Authenticate against Azure Mobile Service

Now that we have configured Azure AD for our HTML and Azure Mobile Service app we can extend the HTML app to authenticate against the Azure Mobile Service. To do this, we need to tell ADAL.js that we want to authenticate against this endpoint, so we need to add an endpoint configuration to out ADAL.js config:

The first part of the endpoint is the url of the endpoint, the second part is the APP-ID URI of the Azure Mobile Service AAD application. ADAL.js now injects into every call to the specified endpoint url a bearer token. Sadly Azure Mobile Service doesn’t use this token for authentication. Instead it uses its own token provided in a “X-ZUMO-AUTH” header. To get the token we can use the client-directed login operation . This allows us to get an Azure Mobile Service auth token for an already obtained AAD token. So we need to obtain an OAuth token for our Azure Mobile Service AAD app and present this token to Azure Mobile Service to get a valid Azure Mobile Service token. A little bit complicated but OK, let’s try this:

Summary

After this long post here are the key points:

  • Create a Azure Active Directory application for the Azure Mobile Service app and the HTML app
  • The HTML AAD app must have the set the “oauth2AllowImplicitFlow” option to “true” in the manifest
  • The HTML AAD app must have access to the Azure Mobile Service app (under “permissions to other applications)
  • The HTML App must have ADAL.js be configured with a endpoint for the Azure Mobile Service app
  • You have to use the client-directed login operation in your HTML app

If you find a more elegant solution for this problem or need further help, please let me know.