[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://github.com/iresty/apisix/blob/master/LICENSE)

APISIX is a cloud-native microservices API gateway, delivering the ultimate performance, security, open source and scalable platform for all your APIs and microservices.

## Summary
- [**Install**](#install)
- [**Quickstart**](#quickstart)
- [**Distributions**](#distributions)
- [**Development**](#development)

## Install

### CentOS
#### Dependencies
- OpenResty
```shell
sudo yum install yum-utils
sudo yum-config-manager --add-repo https://openresty.org/package/centos/openresty.repo
sudo yum install openresty
```

- etcd
```shell
sudo yum install etcd
```

#### Install from RPM
```shell
wget 39.97.63.215/download/apisix-0.1-2.noarch.rpm
sudo rpm -ivh apisix-0.1-2.noarch.rpm
```

If no error has occurred, APISIX is already installed in this directory: `/usr/share/lua/5.1/apisix`.

Now, you can try APISIX, go to [**Quickstart**](#quickstart).

### Source Install

> Dependent library

* [lua-resty-r3] Setups the [resty-r3#install](https://github.com/iresty/lua-resty-r3#install) library.
* [lua-resty-etcd] Setups the [resty-etcd#install](https://github.com/iresty/lua-resty-etcd#install) library.
* [lua-resty-balancer] Setups the [resty-balancer#install](https://github.com/iresty/lua-resty-balancer#installation) library.

> Install by luarocks

```shell
luarocks install lua-resty-r3 lua-resty-etcd lua-resty-balancer
```

## Quickstart
1. start etcd:
```shell
systemctl start etcd
```

2. init etcd:
```shell
curl http://127.0.0.1:2379/v2/keys/apisix/routes -X PUT -d dir=true

curl http://127.0.0.1:2379/v2/keys/apisix/upstreams -X PUT -d dir=true

curl http://127.0.0.1:2379/v2/keys/apisix/services -X PUT -d dir=true
```

3. start APISIX:
```shell
sudo openresty -p /usr/share/lua/5.1/apisix -c /usr/share/lua/5.1/apisix/conf/nginx.conf
```

4. try limit count plugin

For the convenience of testing, we set up a maximum of 2 visits in 60 seconds, and return 503 if the threshold is exceeded:
```shell
curl http://127.0.0.1:2379/v2/keys/apisix/routes/1 -X PUT -d value='{"methods":["GET"],"uri":"/hello","id":1,"plugin_config":{"limit-count":{"count":2,"time_window":60,"rejected_code":503,"key":"remote_addr"}},"upstream":{"type":"roundrobin","nodes":{"220.181.57.215:80":1,"220.181.57.216:80":1}}}'
```

```shell
curl -i -H 'host:baidu.com' 127.0.0.1:9080/hello
```


## Distributions

- Docker: TODO
- CentOS: [RPM for CentOS 7](http://39.97.63.215/download/apisix-0.1-2.noarch.rpm)
- RedHat: TODO
- Ubuntu: TODO
- Homebrew:TODO
- Nightly Builds: TODO


## Development
### How to load the plugin?

![](doc/flow-load-plugin.png)

### Plugin

![](doc/flow-plugin-internal.png)


### User routes with plugins config in etcd

Here is example for one route and one upstream:

```shell
$ curl http://127.0.0.1:2379/v2/keys/user_routes/1 | python -m json.tool
{
    "action": "get",
    "node": {
        "createdIndex": 649,
        "key": "/user_routes/1",
        "modifiedIndex": 649,
        "value": "{\"host\":\"test.com\",\"methods\":[\"GET\"],\"uri\":\"/hello\",\"id\":3333,\"plugin_config\":{\"example-plugin\":{\"i\":1,\"s\":\"s\",\"t\":[1,2]},\"new-plugin\":{\"a\":\"a\"}},\"upstream\":{\"id\":1,\"type\":\"roundrobin\"}}"
    }
}

$ curl http://127.0.0.1:2379/v2/keys/user_upstreams/1 | python -m json.tool
{
    "action": "get",
    "node": {
        "createdIndex": 679,
        "key": "/user_upstreams/1",
        "modifiedIndex": 679,
        "value": "{\"id\":1,\"type\":\"roundrobin\",\"nodes\":{\"220.181.57.215:80\":1,\"220.181.57.216:80\":1,\"220.181.57.217:80\":1}}"
    }
}
```

Here is example for one route (it contains the upstream information):

```
$ curl http://127.0.0.1:2379/v2/keys/user_routes/1 | python -m json.tool
{
    "action": "get",
    "node": {
        "createdIndex": 649,
        "key": "/user_routes/1",
        "modifiedIndex": 649,
        "value": "{\"host\":\"test.com\",\"methods\":[\"GET\"],\"uri\":\"/hello\",\"id\":3333,\"plugin_config\":{\"example-plugin\":{\"i\":1,\"s\":\"s\",\"t\":[1,2]},\"new-plugin\":{\"a\":\"a\"}},\"upstream\":{\"type\":\"roundrobin\",\"nodes\":{\"220.181.57.215:80\":1,\"220.181.57.216:80\":1,\"220.181.57.217:80\":1}}}"
    }
}
```