Getting Started: GraphQL in .NET

Welcome

What will you learn in this course?

Who is the course for and prerequisites

Why GraphQL?

Lets have a look at GraphQL

GraphQL operation structure explained

A quick look at the GraphQL transport protocols

Lets create our first GraphQL server!

The annotation-based schema building approach

An exploration of the GraphQL type system

GraphQL Object Types

GraphQL Interface Types

GraphQL Union Types

GraphQL Enum Type

GraphQL Input Objects

GraphQL OneOf Inputs

Getting Started with Entity Framework

Using GraphQL projections with Entity Framework

Field Middleware Explained

Paging in GraphQL

Filtering

Filtering and Sorting

Exploring Schema Building Approaches

Introduction

Building with Type Modules and automatic type registration

Splitting Root Types

Cursor Pagination in a layered architectures

Using type extensions in Hot Chocolate

Introduction to DataLoader

Using DataLoader with nested Paging

Introduction to GraphQL query patterns

The Entity pattern

Working with composite keys

Exposing internal identifiers

GraphQL Errors and Non-Nullability explained

Throwing Custom GraphQL Errors

Using Domain Errors in GraphQL Queries

Introduction to GraphQL mutations

Implementing a basic mutation

Mutation design principals

Mutation conventions

Error patterns for GraphQL mutations

Implementing Patch Mutations

Handling File Uploads with GraphQL

Introduction to GraphQL subscriptions

Implementing a basic subscription

Implementing a basic chat

Keeping state with replayable events

Longruninng Mutations

Introduction

Schema as an artifact

Schema export CLI

What is a GraphQL schema registry?

Setting up the schema registry

Setting up a CI build with the schema registry

Setting up a deployment build with the schema registry

Setting up a client registry

Introduction

Setting up aspire for developer telemetry

Adding Hot Chocolate Telemetry

Add Production Telemetry

Instrumentation Options

Custom Spans