Gateway

Gateway is a API gateway based on http. It works at 7 layer.

Features

• Traffic Control
• Circuit Breaker
• Loadbalance
• Routing based on URL
• API aggregation(support url rewrite)
• Backend Server heath check
• Use fasthttp
• Admin WEBUI

Install

Gateway dependency etcd

Compile from source

git clone https://github.com/fagongzi.git
cd $GOPATH/src/github.com/fagongzi/gateway
go build cmd/proxy/proxy.go
go build cmd/admin/admin.go

Download binary file

linux-64bit

You can read this for more infomation about build and run gateway.

Online Demo

• admin

  http://demo-admin.fagongzi.win admin/admin

• proxy

  http://demo-proxy.fagongzi.win

Architecture

Components

Gateway has three component: proxy, admin, etcd.

Proxy

The proxy provide http server. Proxy is stateless, you can scale proxy node to deal with large traffic.

Admin

The admin is a backend manager system. Admin also is a stateless node, you can use a Nginx node for HA. One Admin node can manager a set of proxy which has a same etcd prefix configuration.

Etcd

The Etcd store gateway's mete data.

Concept of gateway

• Server

  Server is a backend server which provide restfule json service.The server is the basic unit at gateway. You can read this for more infomation.

• Cluster

  Cluster is a set of servers which provide the same service. The Loadbalancer select a usable server to use. You can read this for more infomation.

• API

  API is the core concept in gateway. You can define a API with a URL pattern, http method, and at least one dispatch node. You can read this for more infomation.

• Routing

  Routing is a approach to control http traffic to clusters. You can use cookie, query string, request header infomation in a expression for control.

What gateway can help you

Redefine your API URL

Your backend server provide some restful API, You can redefine the API URL that provide to API caller.Use this funcation you can provide beautiful APIs.

Dynamic URL & Aggregation

You can define a URL and configuration a URL set which you want to aggregation.

Protect backend server

Gateway can use Traffic Control and Circuit Breaker functions to avoid backend crash by hight triffic.

AB Test

Gateway's Routing fucntion can help your AB Test.