You have a third-party API that is secured by using Azure Active Directory (Azure AD).
You need to configure a SharePoint Framework (SPFx) web part to consume the third-party API.
Which method should you use?
The AadHttpClient client object is useful for consuming any REST API. You can use it to consume Microsoft Graph or any other third-party (or first-party) REST API.
To consume any REST API using the AadHttpClient client object, create a new instance of the AadHttpClient type by calling the context.aadHttpClientFactory.getClient() method and providing the URI of the target service.