Hasura GraphQL Engine

Hasura GraphQL Engine provides instant, realtime GraphQL and REST APIs over your data sources by introspecting schemas and exposing a composable, secure API surface. It supports multiple backends and connector SDKs for adding custom business logic, and includes an admin console and migration tooling for managing schema and metadata.

Key Features

• Instant GraphQL APIs generated from database schemas with support for queries, mutations, subscriptions (realtime).
• Fine-grained row- and column-level access control and permission rules.
• Database event triggers and webhooks for serverless workflows and asynchronous processing.
• Data Connectors architecture (V3) enabling Postgres, MongoDB, ClickHouse, MS SQL Server and other sources.
• Connector SDKs for writing custom business logic in TypeScript, Python, and Go.
• Admin console and migration tooling for schema management and metadata versioning.
• Remote schemas and schema stitching to merge custom GraphQL services into a single endpoint.
• Container-friendly deployment with Docker and orchestration support for cloud/Kubernetes environments.

Use Cases

• Rapidly expose an existing database as a secure, realtime GraphQL API for web and mobile apps.
• Build event-driven pipelines by triggering functions or webhooks on database changes.
• Compose data from multiple sources into a unified API for microservices and analytics.

Limitations and Considerations

• Full feature parity depends on the connected data source; some advanced features vary by connector and database capabilities.
• Operational behavior (performance, caching, realtime scalability) is influenced by the underlying datastore and deployment topology.

Hasura is designed to accelerate API development by automating schema-to-API creation and providing production-oriented features for access control, subscriptions, and eventing. It is commonly used to modernize data access, integrate heterogeneous data sources, and power realtime user experiences.