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The data returned by this API is sourced from a PostgreSQL database produced by cardano-db-sync-extended, with runtime query translation and results mapping performed by Hasura. Cardano GraphQL exposes a domain model and provides addition controls to limit access, prior to delegating the query.

Metadata and SQL migrations are performed by @cardano-graphql/server using Hasura CLI, which is included in the Dockerfile and NixOS service. If deploying via a different method, install hasura and make available on the system PATH.

User Guides

• Docker
• Configuration
• Client Libraries
• Interacting With The API
• Building
• Testing

Maintainer Guides

The project uses the GitLab Flow process, so branch from master for all changes.

• Development
• Releasing New Versions