Deliver Fast Apps Globally‍

Harper is an open source Node.js performance platform that unifies database, cache, application, and messaging layers into one in-memory process. Build faster. Scale globally. Lead with performance.

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3D illustration of a multi-layered application stack labeled Custom App, REST, WebSocket, MQTT, Cache, Blob, NoSQL, and Vector, emerging from a globe with network connections, symbolizing distributed application architecture. Includes Node.js and code elements with teal, purple, and green accents.

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Delivering Solutions for:

Leading Online
Tire Retailer

+$8.6 M

Estimated annual revenue uplift from enhanced search engine indexation, delivering an 71x ROI.

+71%

Faster page loads delivering 33% top level growth.

Leading
Apparel Retailer

+34%

Increase in mobile conversion rate due to an 80% increase cache hit ratio.

How Much More Could You Earn?

High-performing websites drive greater engagement, boost conversion rates, and fuel revenue growth.

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All Functions. One Platform.

Build apps that outperform their multi-system solutions.

Auto Generate Endpoints from Schemas

By using a GraphQL schema, it’s easy to create database tables, indexes, relationships, and REST endpoints.

Documentation


// Adding the @export directive when defining a table creates a REST endpoint 

type Owner @table @export { 
    name: String
    age: Int 
    address: String 
    phone: String 
    email: String 
    dogId: ID @indexed # Foreign key referencing the Pet table (Dog ID)
    dog: [Dog] @relationship(from: dogId) # Relationship to the Dog table, linked by dogId
}

type Dog @table @export {
    id: ID @primaryKey # The unique identifier for each Dog (Primary Key)
    name: String 
    breed: String 
    age: Int    
}  

// The REST endpoint can be accessed using the following URL when running a Harper application component on your local machine:
curl 'http://localhost:9926/Owner/'

Custom Endpoints in Minutes

Harper’s application component provides tremendous flexibility and control over how data is accessed and modified in Harper.

Documentation


// The code below retrieves a dog's information from the database using the DogAge class, which extends the Dog model to provide functionality for converting a dog's age to human age.

// This class retrieves a dog's information from the database and calculates its equivalent age in human years. 

const { Dog } = tables;

// Convert dog age to human age
export class DogAge extends Dog {
    get() {
        const dog = super.get(); // Get the dog from the database
        const humanAge = dog.age * 7; // Convert dog age to human age
        return { ...dog, humanAge }; // Return the dog with human age
    }
}

Simple Client to Data Interactions

Easily query REST or custom endpoints – no drivers or third-party libraries are required.

Documentation

http://localhost:9926/Dog/?name=Harper
http://localhost:9926/Dog/?breed=Labrador
http://localhost:9926/Dog/?breed=Husky&name=Balto&select(id,name,breed)