README.md

The Codeless GraphQL Engine

What is QLoo?

QLoo is a GraphQL Server built on top of Gloo and the Envoy Proxy.

QLoo leverages Gloo's function registry and Envoy's advanced HTTP routing features to provide a GraphQL frontend for REST/gRPC applications and serverless functions. QLoo routes requests to data sources via Envoy, leveraging Envoy HTTP filters for security, load balancing, and more.

Workflow with QLoo

• Register or Discovery API Endpoints and Serverless Functions with Gloo
• Upload a GraphQL schema
• Connect Functions to your Schema's fields in a QLoo ResolverMap

Features

• Codeless GraphQL API: Instantly deploy a GraphQL server and connect it to your data sources with configuration, zero code required.
• Dynamic Load Balancing: Load balance traffic across multiple data sources.
• Health Checks: Active and passive monitoring of your data sources.
• OpenTracing: Monitor GraphQL requests using the well-supported OpenTracing standard
• Monitoring: Export HTTP metrics to Prometheus or Statsd
• Client SSL: Communicate with Data Sources using TLS encryption
• Declarative API: QLoo features a declarative YAML-based API; store your configuration as code and commit it with your projects.
• Scalability: QLoo scales independently of your data sources and scales infinitely.
• Performance: QLoo leverages Envoy for its high network performance and low footprint.
• Plugins: QLoo leverage's Gloo's plugin ecosystem to enable extending the types of data sources QLoo can connect to.
• JSON-to-gRPC transcoding: Connect GraphQL JSON clients to gRPC data sources.

Service Discovery:

• Kubernetes
• OpenShift
• HashiCorp Stack (Vault, Consul, Nomad)
• Cloud Foundry

Function Discovery:

• AWS Lambda
• Microsoft Azure Functions
• Google Cloud Platform Functions
• Fission
• OpenFaaS
• ProjectFn
• Swagger/REST
• gRPC

Documentation

Installation:

• Installing locally Docker-Compose: Installation guide for Docker-Compose (easiest way to get started)
• Installing on Kubernetes: Installation guide for Kubernetes

Getting Started:

• Getting Started on Docker-Compose: Getting started with Docker (recommended for first time users)
• Getting Started on Kubernetes: Getting started with Kubernetes (recommended for first time users)

v1 API reference:

• Schemas: API Specification for proving your GraphQL Schemas to QLoo
• ResolverMaps: API Reference for ResolverMaps, which map your data sources to your Schemas

Blogs & Demos

• Announcement Blog

Community

Join us on our slack channel: https://slack.solo.io/

Thanks

QLoo would not be possible without the valuable open-source work of projects in the community. We would like to extend a special thank-you to Envoy and gqlgen server library.