App-only token
Use this approach if you want an access token to have app-only context. In this case, EmbedFAST will use an app-only token for authentication and retrieve user identification from the ‘embedfast-user-id’ header parameter to use for authorization (access control and validation).
Log into Postman.
Go to the Workspaces tab > My Workspace.
Click on the + icon next to the Overview tab to create a new request.

This will take you to a new request page.

Click on the Authorization tab below the entry field.

From the drop-down menu next to Type, select OAuth 2.0.

Add parameters under the Configure New Token section as detailed in the table below:

Parameters
Inputs
Token Name
Create and enter a token name
Grant Type
Select Client Credentials
Access Token URL
https://login.microsoftonline.com/<Your-Tenant-ID>/oauth2/v2.0/ token
Client ID
Enter the client ID of the EmbedFAST API's app registration
Client Secret
Enter the client secret of the EmbedFAST API's app registration
Scope
api://<Client-ID>/.default
Client Authentication
Send as basic Auth header
Click on Get New Access Token after entering the parameters detailed above.

A dialog box will appear which confirms the completion of the authentication.

You can copy the access token from the page shown below.
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