Exograph

Fast, flexible, secure backend for your web, mobile, and AI apps

Exograph is a powerful data modeling language and high-performance query engine that offers dynamically generated APIs

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Model relational and vector data
First-class Postgres integration
Fine-grained access control
Query execution in < 20ms
Small memory footprint < 32MB
GraphQL APIs (REST & RPC coming soon)
Custom functions and interceptors
Deploy to AWS Lambda, Google Cloud, Fly.io & more

Data Models in Seconds
Fine-Grained Access Controls
Connect to Custom Logic

Describe your domain model, and Exograph will:

Automatically infer GraphQL API for it.
Create (and migrate) database schema for it.
Execute queries efficiently

Don't write SQL ever again.

@postgres
module EcommerceDatabase {
  @access(true)
  type Product {
    @pk id: Int = autoIncrement()
    name: String
    description: String
    price: Float
    published: Boolean
    department: Department
  }

  @access(true)
  type Department {
    @pk id: Int = autoIncrement()
    name: String
    products: Set<Product>?
  }
}

Go beyond role-based authorization. Specify complex permissions with just a few lines of code.

Integrate with any authentication system including OpenID Connect.

context AuthContext {
  @jwt role: String
}

@postgres
module EcommerceDatabase {
  @access(
    query=self.published || AuthContext.role=="admin", 
    mutation=AuthContext.role=="admin")
  type Product {
    // ...
    published: Boolean
  }

  @access(
    query=true, 
    mutation=AuthContext.role=="admin")
  type Department {
    // ...
    published: Boolean
  }
}

Integrate with external APIs or define custom algorithms with just a few lines of JavaScript or TypeScript.

@deno("announce.ts")
module ProductAnnouncement {
  @access(AuthContext.role=="admin")
  mutation announce(productId: Int, @inject exo: Exograph): String
}

const productQuery = 
    `query getProduct($id: Int) { 
       product(id: $id) { 
         name, 
         price 
       } 
     }`;
          
export function announce(productId: number, exo: Exograph): string {
  const product = exo.executeQuery(productQuery, {id: productId});
  const potentialBuyers = exo.executeQuery(... analytics GraphQL query);
  sendEmail(
    potentialBuyers, 
    "New Product", `A new product ${product.name} is available`
  );
  return "Announcement sent";
}