Course Introduction

Delve into the world of supergraphs with our comprehensive course designed for modern API developers. Supergraphs represent a breakthrough in API design, offering a unified, interconnected data layer from various subgraphs. In this course, you will learn the intricacies of building subgraphs, connecting them to your data supergraph using Hasura’s versatile data connectors, and create relationships to work seamlessly across teams.

What will I learn?

This tutorial is designed to give you a complete overview of how to model and architect a data supergraph using Hasura v3. By the end of this tutorial, you will have a working supergraph — complete with separate subgraphs that include relational data sources — deployed to Hasura DDN, our global and near-instant data delivery network.

You'll learn:

Conceptual Understanding

Understand the concept of a supergraph.

Subgraph and Supergraph Management

Identify subgraphs in an organization.
Create relationships across models in subgraphs.
Test changes to a subgraph with other production supergraph metadata.

Development and Customization

Use dev mode to get instant feedback on your API's changes.
Create relationships with the aid of LSP.

Deployment and Integration

Deploy a custom connector to Hasura DDN.

What will we be building?

We'll build an e-commerce supergraph that mimics the real world by simulating a series of development teams that must work collaboratively to build their subgraphs independently. Each team will be responsible for a subgraph that represents a different part of the e-commerce application. Our teams are:

User Experience
Product Management
Payment Processing
Fulfillment Services

What do I need to take this tutorial?

We'll go into more detail in the next section, but you'll need:

The new Hasura CLI
The Hasura VS Code extension (optional, but recommended)
A Hasura DDN account
Completion of the Hasura Basics v3 course
ngrok (for tunneling locally-running databases) or a cloud-hosted PostgreSQL provider