Getting started

run npm install

Azure:

Go to [https://portal.azure.com/#blade/Microsoft_AAD_IAM/ActiveDirectoryMenuBlade/RegisteredApps] and register new Application.
Go to Authorization and add a platform: Single-Page application
Enter 'https://localhost:4200' as Redirect URI.

Check that User.Read is in the default API permissions as DELEGATED permissions.

Environment

create a /src/environments/environment.ts file with:

export const environment = {
  production: false,
  clientId: <your Application (client) ID>
  authority: 'https://login.microsoftonline.com/common/',
  redirectUri: window.location.origin,
  scopes: ['User.Read']
};

Manifest

run npm run uuid
Edit manifest.xml file and add UUID.
At the bottom, add the Azure Application Client ID

Certificates

Run 'npm run mkcert'
Import (install) CA.crt and CERT.crt into your certificate store

Office

Copy manifest.xml to 'C:\programdata\MyAddin' (or other preferred directory).
Inside an Office program, go to 'File', 'Options', 'Trust Center', 'Trust Center Settings', Select 'Trusted Add-in Catalogs'.
Enter Catalog Url: \\localhost\c$\programdata\MyAddin

Restart Office program, then go to 'Insert' tab and select 'My Add-ins'. Go to Shared Folder and select your Add-in. Open Addin from Home tab.

If your add-in is missing, check the manifest file with 'npm run validate'.