What are Angular Routing Resolvers and how do they work?

What are Angular Routing Resolvers and how do they work?

Angular Routing Resolvers are services that pre-fetch data before a route is activated. They ensure that the necessary data is available for the component before it loads.

Can you give me an example of how to implement a resolver?

Sure! First, create a resolver service that implements the Resolve interface. Then, define the resolver in your routing module and associate it with a route.

What happens if the resolver fails to fetch data?

If a resolver fails, the route will not activate, and you can handle the error by redirecting to an error page or displaying a message.

Are there any performance benefits to using resolvers?

Yes, using resolvers can improve performance by reducing the number of HTTP requests made after the component loads, ensuring all data is ready beforehand.