API Development in .NET with GraphQL

Overview

Learn how to use the GraphQL.NET framework to build a GraphQL endpoint. Discover how to create a GraphQL project, configure the schema, allow updates through mutations, and more.

Syllabus

Introduction

Welcome
What you should know
Using exercise files
What is GraphQL.NET?
Running on Mac and Linux

1. Creating a New GraphQL Project

What we're going to build
Creating the GraphQL API solution

2. Exposing a New GraphQL API

How to enable querying
Create models
Create customer service
Create order service
How to configure the schema
Create customer and order GraphQL types
Create OrderStatuses GraphQL enum
Configure the GraphQL query and schema
Enable server and issue a query

3. Allowing Updates through Mutations

How to enable mutations
Update models and services
Update the schema
Configure the schema
Create a mutation and verify the change

4. Enabling Clients to Subscribe to Notifications

How to enable subscriptions
Start updating models and services
Complete updating models and services
New GraphQL.NET schema classes
Create the OrderEventType
Create the OrdersSubscription
Configure the schema
Create a subscription and fire a notification

Conclusion

Next steps

Taught by

Glenn Block

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