If you are looking for the best backend to go along with Angular, or even better if you are looking to do as little server-side development as possible and focus mostly on the frontend, then look no further: Firebase is the right choice for you.
With Firebase, you will be able to query your database directly from the client and even directly modify data straight from the client in a secure way. You might not think that this would even be possible and that there always has to be a server involved in order for things to be secure, and that is true.
But that does not mean that you have to write the server yourself, and that is the whole point of the term Serverless. With Firebase you can write essentially serverless applications, in the sense that in the application code base there is hardly any server-side code at all when compared to a traditional REST-based application.
In this course, you are going to learn how to design and build Angular applications using a Serverless Architecture by leveraging the whole Firebase ecosystem: this includes the Firestore NoSQL DataStore database, Firebase Security Rules, Firebase Hosting, Firebase Storage and Firebase Cloud Functions.