Blazing fast, instant realtime GraphQL APIs on your DB with fine grained access control, also trigger webhooks on database events.
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Hasura GraphQL Engine

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Hasura GraphQL Engine is a blazing-fast GraphQL server that gives you instant, realtime GraphQL APIs over Postgres, with webhook triggers on database events for asynchronous business logic.

Hasura helps you build GraphQL apps backed by Postgres or incrementally move to GraphQL for existing applications using Postgres.

Read more at hasura.io and the docs.


Hasura GraphQL Engine Demo


Hasura GraphQL Engine Realtime Demo


Features

  • Make powerful queries: Built-in filtering, pagination, pattern search, bulk insert, update, delete mutations
  • Realtime: Convert any GraphQL query to a live query by using subscriptions
  • Trigger webhooks or serverless functions: On Postgres insert/update/delete events (read more)
  • Works with existing, live databases: Point it to an existing Postgres database to instantly get a ready-to-use GraphQL API
  • Fine-grained access control: Dynamic access control that integrates with your auth system (eg: auth0, firebase-auth)
  • High-performance & low-footprint: ~15MB docker image; ~50MB RAM @ 1000 req/s; multi-core aware
  • Admin UI & Migrations: Admin UI & Rails-inspired schema migrations
  • Postgres ❤️: Supports Postgres types (PostGIS/geo-location, etc.), turns views to graphs, trigger stored functions or procedures with mutations

Read more at https://hasura.io and the docs.

Table of contents

Table of Contents

Quickstart:

One-click deployment on Heroku

The fastest way to try Hasura out is via Heroku.

  1. Click on the following button to deploy GraphQL Engine on Heroku with the free Postgres add-on:

    Deploy to Heroku

  2. Open the Hasura console

    Visit https://<app-name>.herokuapp.com (replace <app-name> with your app name) to open the admin console.

  3. Make your first GraphQL query

    Create a table and instantly run your first query. Follow this simple guide.

Other deployment methods

For Docker-based deployment and advanced configuration options, see deployment guides or install manifests.

Architecture

The Hasura GraphQL Engine fronts a Postgres database instance and can accept GraphQL requests from your client apps. It can be configured to work with your existing auth system and can handle access control using field-level rules with dynamic variables from your auth system.

You can also place the engine behind a central GraphQL proxy that fronts multiple GraphQL APIs via schema stitching.

Hasura GraphQL Engine architecture

Client-side tooling

Hasura works with any GraphQL client. We recommend using Apollo Client. See awesome-graphql for a list of clients.

Add business logic

Custom resolvers

Add custom resolvers in addition to Hasura GraphQL engine. Ideal for delegating to HTTP APIs, making direct calls to another data-source or writing business logic in code - read more.

Trigger webhooks on database events

Add asynchronous business logic that is triggered based on database events. Ideal for notifications, data-pipelines from Postgres or asynchronous processing - read more.

Demos

Check out all the example applications in the community/examples directory.

Realtime applications

Videos

Support & Troubleshooting

The documentation and community will help you troubleshoot most issues. If you have encountered a bug or need to get in touch with us, you can contact us using one of the following channels:

We are committed to fostering an open and welcoming environment in the community. Please see the Code of Conduct.

If you want to report a security issue, please read this.

Contributing

Check out our contributing guide for more details.

Brand assets

Hasura brand assets (logos, the Hasura mascot, powered by badges etc.) can be found in the assets/brand folder. Feel free to use them in your application/website etc. We'd be thrilled if you add the "Powered by Hasura" badge to your applications built using Hasura. ❤️

<!-- For light backgrounds -->
<a href="https://hasura.io">
  <img width="150px" src="https://graphql-engine-cdn.hasura.io/img/powered_by_hasura_black.svg" />
</a>

<!-- For dark backgrounds -->
<a href="https://hasura.io">
  <img width="150px" src="https://graphql-engine-cdn.hasura.io/img/powered_by_hasura_white.svg" />
</a>

License

The core GraphQL Engine is available under the GNU Affero General Public License v3 (AGPL-3.0), the same license as MongoDB. We have written more about what you can and cannot do under AGPL here.

Commercial licenses that bundle the Hasura GraphQL Engine with support and SLAs are available on request. Please feel free to contact us at build@hasura.io or on our website chat.

All other contents (except those in server, cli and console directories) are available under the MIT License. This includes everything in the docs and community directories.