# HTTP、CoAP推送消息

#### 架构

![](https://33059891-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LPz4APWKTuf0FRQG1lh%2F-MFnSEkcYMnAiC3o2fWC%2F-MFnVhBdj1Onp5s7aclc%2Fcoolpy7%E4%B9%8Bhttp%E6%8E%A8%E9%80%81.png?alt=media\&token=7d263542-015b-4001-936a-35da452ac143)

#### HTTP协议发布消息

1. 通过POST方法调用接口
2. 通过Header中添加Basic Auth信息进行用户名、密码提交（与MQTT连接的UserName，PassWord保持一致
3.  通过URL中的Query参数设置MQTT消息参数
4. Coolpy7节点收到请求后保持与原用户身份验证功能调用扩展服务进行用户身份验证，验证成功后消息将发布到MQTT网络中

{% hint style="info" %}
Basic Auth算法, 以半角":"号组合用户名和密码，然后进行Base64进行编码放到http的header中，header 键为Authorization，值以Basic加一个空格为前缀， 然后并上用户名密码的base64值

例如：Basic amFjb2I6cGFzcw== 
{% endhint %}

{% hint style="success" %}
从7.3.2.9版本开始支持使用JWT进行身分验证，通过配置相关启动参数后，同相关方式可使用JWT为 Basic +jwtToken，测试代码：<https://github.com/Coolpy7/coolpy7_benchmark/blob/master/test_http_publish/cp7_http_pub_jwt.go>

例如：Basic eyJhbGciOiJIUzI1NiJ9.e30.k1PZfshORXyxbck0bv95juNEBvbPNd2L47bqVsy4ix8
{% endhint %}

CURL使用示例

```
curl -v -X POST -H "Authorization: Basic c3R1ZGVudDpzdHVkZW50" "Content-Type: application/json" -d '{"id":100}' 'http://localhost:8888/pub?clientid=jacoblai&topic=testtopic/+/a/&qos=0&retain=false'
```

性能测试 （WRK压测）

```
wrk -t 16 -c 1000 -d 10s --latency --timeout 5s -s ./post.lua 'http://localhost:8081/pub?clientid=jacoblai&topic=testtopic/a&qos=0&retain=false'
Running 10s test @ http://localhost:8081/pub?clientid=jacoblai&topic=testtopic/a&qos=0&retain=false
  16 threads and 1000 connections
  Thread Stats   Avg      Stdev     Max   +/- Stdev
    Latency     8.14ms    3.05ms  45.08ms   65.95%
    Req/Sec     4.47k     2.16k   66.48k    89.63%
  Latency Distribution
     50%    8.93ms
     75%   10.11ms
     90%   11.79ms
     99%   12.90ms
  712972 requests in 10.10s, 233.35MB read
  Socket errors: connect 0, read 918, write 0, timeout 0
  Non-2xx or 3xx responses: 712972
Requests/sec:  70569.91
Transfer/sec:     23.10MB
```

`post.lua压测提交测试内容`

```
wrk.method = "POST"
wrk.body   = '{"jsonrpc":"2.0","method":"cita_sendTransaction","params":["abcd"],"id":2}'
wrk.headers["Content-Type"] = "application/json"
```

#### CoAP协议发布消息

{% hint style="success" %}
从7.3.2.9版本开始支持使用JWT进行身分验证，通过配置相关启动参数后，同相关方式可使用JWT为 Basic +jwtToken，测试代码：<https://github.com/Coolpy7/coolpy7_benchmark/blob/master/test_coap_publish/cp7_coap_pub_jwt.go>&#x20;

例如：Basic eyJhbGciOiJIUzI1NiJ9.e30.k1PZfshORXyxbck0bv95juNEBvbPNd2L47bqVsy4ix8
{% endhint %}

1. 通过SetOption的LocationQuery参数设为Basic Auth身份验证信息
2. 通过SetOption的URIQuery参数设置publish参数

消息示例

```
req := coap.Message{
		Type:      coap.Confirmable,
		Code:      coap.POST,
		MessageID: uint16(rand.Intn(max-min) + min),
		Payload:   []byte(`{"data":"hello mqtt from coap"}`),
	}

	req.SetPathString("/pub")
	req.SetOption(coap.LocationQuery, "Basic amFjb2I6cGFzcw==")
	req.SetOption(coap.URIQuery, "clientid=jacoblai&topic=testtopic/+/a/#&qos=0&retain=false")
```

压力测试源代码：<https://github.com/Coolpy7/coolpy7_benchmark/blob/master/test_coap_publish/coap_bench_pub_test.go>

性能指标(单个客户端)

```
goos: darwin
goarch: amd64
BenchmarkPub
BenchmarkPub-8   	   41418	     28107 ns/op	     633 B/op	      10 allocs/op
PASS
```