February 2026
Intermediate to advanced
772 pages
17h 25m
English
Content preview from Apps and Services with .NET 10 - Third Edition
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13
Combining Data Sources Using GraphQL
In this chapter, you will be introduced to GraphQL, a service technology that provides a more modern approach to combining data from various sources and a standard way to query that data.
This chapter will cover the following topics:
- Understanding GraphQL
- Building a service that supports GraphQL
- Defining GraphQL queries for EF Core models
- Building .NET clients for a GraphQL service
- Implementing GraphQL mutations
- Implementing GraphQL subscriptions
Understanding GraphQL
In Chapter 10, Building and Securing Minimal API Web Services, you learned how to define a Web API service by mapping request path endpoints to lambda expressions or methods that return the response. Any parameters and the format of responses ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.