How to register an application in Azure AD using Azure CLI

If you are working as a M365 developer you probably have had to register an application in Azure AD at some point. In this blogpost I will show you how you can do so using Azure CLI.

Prerequesites:

You need to download and install Azure CLI.

Sign in to your tenant

When you have installed the Azure CLI you can sign in to your tenant. If you are on a dev-tenant or you don’t have a subscription to your account you should also add the “Allow-no-subscription” flag like shown below.

az login

//if you are on a dev-tenant or for some other reason don't have a subscription use the flag --allow-no-subscription
az login --allow-no-subscriptions

Add the app

When you have successfully signed in you can register a new app with a simple line.

az ad app create --display-name MyApp01 --available-to-other-tenants false

This will return a JSON object with the app information. I have shortened it down a bit in the example below.

{
  "acceptMappedClaims": null,
  "addIns": [],
  "allowGuestsSignIn": null,
  "allowPassthroughUsers": null,
  "appId": "ee26ecb3-977f-4520-ac21-be9eec424538",
 ...
  },
  ...
  ],
  "oauth2RequirePostResponse": false,
  "objectId": "301fc40c-a293-4509-8178-9d1b0fd76444",
  ...
  },
  ...
}

Two values that you should notice are the “appId, and the “objectId”. These values are often used when connecting to your registered app remotely. You can find the same information in the azure portal.

Resources

• List of Azure CLI – Azure AD app commands (Microsoft docs)
• Azure Command Line Interface documentation startpage (Microsoft docs)

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Thank you for reading, and happy coding!

/Eli