Hasura GraphQL Engine is a blazing-fast GraphQL server that gives you instant, realtime GraphQL APIs over Postgres, with webhook triggers on database events, and remote schemas for 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.
- 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
- Merge remote schemas: Access custom GraphQL schemas for business logic via a single GraphQL Engine endpoint. Read more.
- 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 hasura.io and the docs.
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 merge remote GraphQL schemas and provide a unified GraphQL API.
Hasura works with any GraphQL client. We recommend using Apollo Client. See awesome-graphql for a list of clients.
GraphQL Engine provides easy-to-reason, scalable and performant methods for adding custom business logic to your backend:
Add custom resolvers in a remote schema in addition to Hasura's Postgres-based GraphQL schema. Ideal for use-cases like implementing a payment API, or querying data that is not in your database.
Add asynchronous business logic that is triggered based on database events. Ideal for notifications, data-pipelines from Postgres or asynchronous processing.
Transform data in Postgres or run business logic on it to derive another dataset that can be queried using GraphQL Engine.
The core GraphQL Engine is available under the Apache License 2.0.
All other contents (except those in server, cli and
console directories) are available under the MIT License.
This includes everything in the docs directory.