最近的一些疫情信息很讓人揪心,為了方便大家掌握疫情信息,在空閑之余做了一個(gè)關(guān)于 nCoV 的疫情監(jiān)控小助手。主要的功能是通過(guò)企業(yè)微信的 WebHook 來(lái)推送疫情信息。這里將使用 Serverless 的整體代碼思路和架構(gòu)方式分享給大家。本文作者:tabor
實(shí)現(xiàn)效果
我們想要實(shí)現(xiàn)的大致的效果是這樣的:
首先,我們需要解決的是數(shù)據(jù)來(lái)源問題,這里我們可以使用 python 爬蟲來(lái)做這件事情,但是由于個(gè)人比較懶所以直接用的 2019-nCoV-Crawler ,這個(gè)項(xiàng)目已經(jīng)集成了現(xiàn)有的 API,所以我們直接調(diào)用即可。當(dāng)然有能力的同學(xué)也可以自己部署 Python,我這邊是自己部署的,但是這不是本次的重點(diǎn),就不在贅述。
現(xiàn)在,我們有了數(shù)據(jù),但是數(shù)據(jù)怎么打到服務(wù)器呢?又該如何觸發(fā)?當(dāng)然使用 CVM 也是可以的,但是似乎太笨拙,并且消耗量很大,需要自己搭好所有環(huán)境。所以,這里我們選用 Serverless 方式來(lái)部署。
核心邏輯
我們來(lái)看看整體業(yè)務(wù)的代碼部分吧,畢竟這里是整個(gè)機(jī)器人的核心。我們來(lái)看代碼(請(qǐng)求三次接口):
?php
function main_handler($event, $context) {
// 廣東省情況
$curlsz = curl_init();
curl_setopt_array($curlsz, array(
CURLOPT_URL => "https://lab.isaaclin.cn/nCoV/api/area?latest=0province=%E5%B9%BF%E4%B8%9C%E7%9C%81",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 3000,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => array(
"Accept: */*",
"Cache-Control: no-cache",
"Connection: keep-alive",
"Host: lab.isaaclin.cn",
"Postman-Token: 680e5ea7-5c2e-4fb6-9295-7e336f2252c6,abd73e01-2a60-42b5-9bbe-92aa83805a7e",
"User-Agent: PostmanRuntime/7.15.0",
"accept-encoding: gzip, deflate",
"cache-control: no-cache"
),
));
$responsesz = curl_exec($curlsz);
$echo_responsesz = json_decode($responsesz, true);
$err = curl_error($curlsz);
curl_close($curlsz);
// 湖北省情況
$curlhb = curl_init();
curl_setopt_array($curlhb, array(
CURLOPT_URL => "https://lab.isaaclin.cn/nCoV/api/area?latest=0province=%E6%B9%96%E5%8C%97%E7%9C%81",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 3000,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => array(
"Accept: */*",
"Cache-Control: no-cache",
"Connection: keep-alive",
"Host: lab.isaaclin.cn",
"Postman-Token: 680e5ea7-5c2e-4fb6-9295-7e336f2252c6,abd73e01-2a60-42b5-9bbe-92aa83805a7e",
"User-Agent: PostmanRuntime/7.15.0",
"accept-encoding: gzip, deflate",
"cache-control: no-cache"
),
));
$responsehb = curl_exec($curlhb);
$echo_responsehb = json_decode($responsehb, true);
$err = curl_error($curlhb);
curl_close($curlhb);
// 全國(guó)總體情況
$curlall = curl_init();
curl_setopt_array($curlall, array(
CURLOPT_URL => "https://lab.isaaclin.cn/nCoV/api/overall",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 3000,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => array(
"Accept: */*",
"Cache-Control: no-cache",
"Connection: keep-alive",
"Host: lab.isaaclin.cn",
"Postman-Token: 680e5ea7-5c2e-4fb6-9295-7e336f2252c6,abd73e01-2a60-42b5-9bbe-92aa83805a7e",
"User-Agent: PostmanRuntime/7.15.0",
"accept-encoding: gzip, deflate",
"cache-control: no-cache"
),
));
$responseall = curl_exec($curlall);
$echo_responseall = json_decode($responseall, true);
$err = curl_error($curlall);
curl_close($curlall);
//判斷是否為深圳地域(這里邏輯寫的比較簡(jiǎn)單,但是夠用了)
if ($echo_responsesz['results'][0]['cities'][0]['cityName'] == '深圳') {
$echo_responseszqz = $echo_responsesz['results'][0]['cities'][0]['confirmedCount'];
$echo_responseszys = $echo_responsesz['results'][0]['cities'][0]['suspectedCount'];
$echo_responseszzy = $echo_responsesz['results'][0]['cities'][0]['curedCount'];
$echo_responseszsw = $echo_responsesz['results'][0]['cities'][0]['deadCount'];
} else {
$echo_responseszqz = $echo_responsesz['results'][0]['cities'][1]['confirmedCount'];
$echo_responseszys = $echo_responsesz['results'][0]['cities'][1]['suspectedCount'];
$echo_responseszzy = $echo_responsesz['results'][0]['cities'][1]['curedCount'];
$echo_responseszsw = $echo_responsesz['results'][0]['cities'][1]['deadCount'];
}
if ($err) {
echo "cURL Error #:" . $err;
} else {
//疫情監(jiān)控告警機(jī)器人
$sc = $sc=" **2019-nCoV 疫情信息同步:** \n
> 全國(guó)疫情:
> 確診人數(shù)font color=\"info\">".$echo_responseall['results'][0]['confirmedCount']."/font>,疑似感染人數(shù)font color=\"info\">".$echo_responseall['results'][0]['suspectedCount']."/font>,治愈人數(shù)font color=\"info\">".$echo_responseall['results'][0]['curedCount']."/font>,死亡人數(shù)font color=\"info\">".$echo_responseall['results'][0]['deadCount']."/font>\n
> 廣東省:
> 確診人數(shù)font color=\"info\">".$echo_responsesz['results'][0]['confirmedCount']."/font>,疑似感染人數(shù)font color=\"info\">".$echo_responsesz['results'][0]['suspectedCount']."/font>,治愈人數(shù)font color=\"info\">".$echo_responsesz['results'][0]['curedCount']."/font>,死亡人數(shù)font color=\"info\">".$echo_responsesz['results'][0]['deadCount']."/font>\n
> 湖北省:
> 確診人數(shù)font color=\"info\">".$echo_responsehb['results'][0]['confirmedCount']."/font>,疑似感染人數(shù)font color=\"info\">".$echo_responsehb['results'][0]['suspectedCount']."/font>,治愈人數(shù)font color=\"info\">".$echo_responsehb['results'][0]['curedCount']."/font>,死亡人數(shù)font color=\"info\">".$echo_responsehb['results'][0]['deadCount']."/font>\n
> 深圳市:
> 確診人數(shù)font color=\"info\">".$echo_responseszqz."/font>,疑似感染人數(shù)font color=\"info\">".$echo_responseszys."/font>,治愈人數(shù)font color=\"info\">".$echo_responseszzy."/font>,死亡人數(shù)font color=\"info\">".$echo_responseszsw."/font>\n
> font color=\"info\">".$echo_responseall['results'][0]['note1']."/font>
> font color=\"info\">".$echo_responseall['results'][0]['note2']."/font>
> font color=\"info\">".$echo_responseall['results'][0]['note3']."/font>
> font color=\"info\">".$echo_responseall['results'][0]['remark1']."/font>
> font color=\"info\">".$echo_responseall['results'][0]['remark2']."/font>
> font color=\"info\"> 信息出處:".$echo_responseall['results'][0]['generalRemark']."/font> \n
>[更多數(shù)據(jù)請(qǐng)查看](https://news.qq.com/zt2020/page/feiyan.htm) \n
";
$post = array('msgtype' => 'markdown', 'markdown' => array('content' => $sc));
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => "https://qyapi.weixin.qq.com/cgi-bin/webhook/send?key=", //這里的地址填寫為企業(yè)微信的HOOK路徑,https://work.weixin.qq.com/api/doc/90000/90136/91770
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 10,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode($post,JSON_UNESCAPED_UNICODE),
CURLOPT_HTTPHEADER => array(
"Cache-Control: no-cache",
"Postman-Token: ab32082b-ce64-4832-b51f-8f2f1b3e98ef"
),
));
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
return "運(yùn)行成功";
}
}
?>
是不是很簡(jiǎn)單呢?請(qǐng)求數(shù)據(jù),發(fā)送數(shù)據(jù)。
那么我們接下了重點(diǎn)看下如何將我們的業(yè)務(wù)代碼上傳到云端呢?
這里的云端我用的是騰訊云 Serverless 服務(wù) SCF云函數(shù) 。整個(gè)部署,使用過(guò)程都是免費(fèi)的,對(duì)于開發(fā)者來(lái)講小項(xiàng)目使用的話免費(fèi)額度是完全夠用的。無(wú)需擔(dān)心額外付費(fèi)。
Serverless 部署,選用的是比較流行的 Serverless Framework,使用和部署也是完全免費(fèi)的,那么下面我就來(lái)介紹下具體的部署過(guò)程吧。
安裝 Serverless 框架
首先,第一步,我們來(lái)安裝一個(gè) Serverless Framework 的開發(fā)框架:
$ npm install -g serverless
然后,我們創(chuàng)建一個(gè)函數(shù)目錄:
$ mkdir nCov-function
$ cd nCov-function
相關(guān)函數(shù)目錄的內(nèi)容如下:
|- code
|- index.php // 這里就是上面的業(yè)務(wù)代碼存放位置
|- serverless.yml //serverless 配置文件
配置 Yml 文件
接下來(lái),是我們的重頭戲,配置函數(shù) yml 文件:
# serverless.yml
myFunction:
component: "@serverless/tencent-scf" //引用tencent-scf component
inputs:
name: nCoVFunction //函數(shù)名稱
enableRoleAuth: true
codeUri: ./code //代碼本地存放位置
handler: index.main_handler
runtime: Php5
region: ap-shanghai //函數(shù)運(yùn)行地域
description: My Serverless nCoV Function.
memorySize: 128 //運(yùn)行內(nèi)存
timeout: 20 //超時(shí)時(shí)間
exclude:
- .gitignore
- .git/**
- node_modules/**
- .serverless
- .env
include:
- ./nCoVFunction.zip
environment:
variables:
TEST: vale
vpcConfig:
subnetId: ''
vpcId: ''
events:
- timer: // 定時(shí)觸發(fā)器
name: timer
parameters:
cronExpression: '0 0 10,21 * * * *' //明天早上10點(diǎn),晚上21點(diǎn)
enable: true
萬(wàn)事具備,我們就可以直接部署 SLS 了。
部署到云端
通過(guò) sls 命令(serverless 的縮寫)進(jìn)行部署,并可以添加 –debug 參數(shù)查看部署過(guò)程中的信息:
taborchen$ sls --debug
DEBUG ─ Resolving the template's static variables.
DEBUG ─ Collecting components from the template.
DEBUG ─ Downloading any NPM components found in the template.
DEBUG ─ Analyzing the template's components dependencies.
DEBUG ─ Creating the template's components graph.
DEBUG ─ Syncing template state.
DEBUG ─ Executing the template's components graph.
DEBUG ─ Compressing function nCoVFunction file to /Users/taborchen/Desktop/工作/yiqing/.ser
verless/nCoVFunction.zip.
DEBUG ─ Compressed function nCoVFunction file successful
DEBUG ─ Uploading service package to cos[sls-cloudfunction-ap-shanghai-code]. sls-cloudfunc
tion-default-nCoVFunction-1580960644.zip
DEBUG ─ Uploaded package successful /Users/taborchen/Desktop/工作/yiqing/.serverless/nCoVFu
nction.zip
DEBUG ─ Creating function nCoVFunction
DEBUG ─ Created function nCoVFunction successful
DEBUG ─ Setting tags for function nCoVFunction
DEBUG ─ Creating trigger for function nCoVFunction
DEBUG ─ Created timer trigger timer for function nCoVFunction success.
DEBUG ─ Deployed function nCoVFunction successful
運(yùn)行結(jié)果如下:
這樣,我們就完成了一個(gè) nCoV 的在線觸發(fā)函數(shù)機(jī)器人~是不是很簡(jiǎn)單呢?快來(lái)開始動(dòng)手吧~
傳送門:
GitHub: github.com/serverless
官網(wǎng):serverless.com
好了,就給大家介紹到這來(lái),希望大家喜歡!
您可能感興趣的文章:- Serverless 架構(gòu)如何演進(jìn)詳細(xì)介紹
- 什么是OpenStack 開源的云計(jì)算管理平臺(tái)項(xiàng)目
- OpenStack云計(jì)算快速入門教程(1)之OpenStack及其構(gòu)成簡(jiǎn)介
- 虛擬化和云計(jì)算的區(qū)別分析
- CentOS 6.4下安裝部署OpenStack云計(jì)算平臺(tái)的方法
- 解讀Serverless架構(gòu)的前世今生