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Version: v3.x

Connector in TypeScript Tutorial

In this course we will go through the process of creating a Hasura DDN data connector in TypeScript step-by-step.

Data connectors allow us to target arbitrary data sources and bring their data into our Hasura graph.

What will we be building?​

We will build a basic connector to an SQLite file-system database which you can run locally on your machine.

This will familiarize you with the process of creating a connector to the Hasura DDN specification. You can then take the concepts you've learned and apply them to any data source you'd like to integrate with Hasura DDN.

How do I follow along?​

You can follow along with the code in this tutorial by first cloning the repo.

What will I learn?​

You'll learn the fundamentals of creating a basic data connector with the TypeScript Data Connector SDK. You can then take what you've learned into creating a data connector for any data source.

What do I need to take this tutorial?​

It is recommended that you first review the Hasura NDC Specification, at least to gain a basic familiarity with the concepts, but this course is intended to be complementary to the spec.

The dependencies required to follow along here are minimal:

  • you will need Node with npm so that you can run the TypeScript compiler.
  • If you'd like to follow along using the same test-driven approach, then you will also need a working ndc-test executable on your PATH.

ndc-test can be installed using the Rust toolchain from the ndc-spec repository.

How long will this tutorial take?​

About an hour.

Additional Resources​

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