diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..723ef36
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.idea
\ No newline at end of file
diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..0724ff2
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,15 @@
+{
+    "name": "paidian/weichat",
+    "type": "library",
+    "description": "weichat library.",
+    "require": {
+        "guzzlehttp/guzzle": "^6.3",
+    },
+    "autoload": {
+        "psr-4": {
+            "Wechat\\": "src/Wechat"
+        }
+    },
+    "require-dev": {
+    }
+}
diff --git a/src/Wechat/AccessToken.php b/src/Wechat/AccessToken.php
new file mode 100644
index 0000000..39c0fa6
--- /dev/null
+++ b/src/Wechat/AccessToken.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace Wechat;
+
+class AccessToken
+{
+
+    protected $token;
+
+    public function __construct($app,string $token, $expiresIn)
+    {
+        $this->token = $token;
+    }
+
+    public function __toString()
+    {
+        return $this->token;
+    }
+
+}
\ No newline at end of file
diff --git a/src/Wechat/ServerProvider/WechatServiceProvider.php b/src/Wechat/ServerProvider/WechatServiceProvider.php
new file mode 100644
index 0000000..a814366
--- /dev/null
+++ b/src/Wechat/ServerProvider/WechatServiceProvider.php
@@ -0,0 +1 @@
+<?php
\ No newline at end of file
diff --git a/src/Wechat/Work/Base.php b/src/Wechat/Work/Base.php
new file mode 100644
index 0000000..238e0bb
--- /dev/null
+++ b/src/Wechat/Work/Base.php
@@ -0,0 +1,62 @@
+<?php
+
+namespace Wechat\Work;
+
+use GuzzleHttp\Client;
+use GuzzleHttp\Psr7\Request;
+use GuzzleHttp\Psr7\Uri;
+
+class Base
+{
+
+    protected $client;
+
+    public function __construct()
+    {
+        $this->client = new Client([
+            'base_uri' => 'https://qyapi.weixin.qq.com/cgi-bin/',
+            'timeout' => '3',
+//            'proxy' => '3',
+        ]);
+    }
+
+    protected function transformForJsonRequest($method, $uri, array $params = null)
+    {
+        $uri = new Uri($uri);
+        $uri = Uri::withQueryValue($uri, 'access_token', $this->getAccessToken());
+        $request = new Request($method, $uri, [], \GuzzleHttp\json_encode($params));
+        return $request;
+    }
+
+    protected function getAccessToken()
+    {
+        $corpId = 'ww9ed271946b8fc4a4';
+        $agentId = '1000015';
+        $agentSecret = 'zH3N1fwrECl913R1r17MjDiNhMKSlJf2P3tSXmk_YG0';
+
+        $cache = app('cache');
+
+        $key = 'wechat_work_access_token_' . $agentId;
+
+        $token = $cache->get($key);
+        if ($token) {
+            return $token;
+        }
+
+        $url = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid=$corpId&corpsecret=$agentSecret";
+
+        $client = new Client();
+        $resp = $client->get($url);
+
+        $body = json_decode($resp->getBody(), true);
+
+        if ($body['errcode'] == 0) {
+            $cache->put($key, $body['access_token'], $body['expires_in'] / 60);
+            return $body['access_token'];
+        } else {
+            return null;
+        }
+    }
+
+
+}
\ No newline at end of file
diff --git a/src/Wechat/Work/Chat.php b/src/Wechat/Work/Chat.php
new file mode 100644
index 0000000..4596a51
--- /dev/null
+++ b/src/Wechat/Work/Chat.php
@@ -0,0 +1,81 @@
+<?php
+
+namespace App\Wechat\Work;
+
+class Chat extends Base
+{
+
+    protected $id;
+
+    public function __construct($id = null)
+    {
+        parent::__construct();
+        $this->id = $id;
+    }
+
+    public function create(array $users, $owner = null, $name = null)
+    {
+        $params = [
+            'userlist' => $users,
+        ];
+
+        if ($name) {
+            $params['name'] = $name;
+        }
+
+        if ($owner) {
+            $params['owner'] = $owner;
+        }
+
+        if ($this->id != null) {
+            $params['chatid'] = $this->id;
+        }
+
+        $request = $this->transformForJsonRequest('POST', 'appchat/create', $params);
+        $resp = $this->client->send($request);
+        return json_decode($resp->getBody(), true);
+    }
+
+    public function get($chatId)
+    {
+        $request = $this->transformForJsonRequest('GET', 'appchat/get?chatid=' . $chatId);
+        $resp = $this->client->send($request);
+        return json_decode($resp->getBody(), true);
+    }
+
+    public function send(Message $message)
+    {
+        $request = $this->transformForJsonRequest('POST', 'appchat/send',
+            array_merge(['chatid' => $this->id], $message->toArray()));
+        $resp = $this->client->send($request);
+        return json_decode($resp->getBody(), true);
+    }
+
+    public function update($chatId, array $add = null, array $del = null, $name = null, $owner = null)
+    {
+        $params = [
+            'chatid' => $chatId,
+        ];
+
+        if ($name) {
+            $params['name'] = $name;
+        }
+
+        if ($owner) {
+            $params['owner'] = $owner;
+        }
+
+        if ($add) {
+            $params['add_user_list'] = $add;
+        }
+
+        if ($del) {
+            $params['del_user_list'] = $del;
+        }
+
+        $request = $this->transformForJsonRequest('POST', 'appchat/update', $params);
+        $resp = $this->client->send($request);
+        return json_decode($resp->getBody(), true);
+    }
+
+}
diff --git a/src/Wechat/Work/ExternalContact.php b/src/Wechat/Work/ExternalContact.php
new file mode 100644
index 0000000..a2c2104
--- /dev/null
+++ b/src/Wechat/Work/ExternalContact.php
@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Wechat;
+
+use App\Wechat\Work\Base;
+
+class ExternalContact extends Base
+{
+    public function __construct()
+    {
+        parent::__construct();
+    }
+
+    public function list($uid)
+    {
+        $request = $this->transformForJsonRequest('GET', 'crm/get_external_contact_list?userid='.$uid);
+        $resp = $this->client->send($request);
+        return json_decode($resp->getBody(), true);
+    }
+
+    public function detail($uid){
+        $request = $this->transformForJsonRequest('GET', 'crm/get_external_contact?external_userid='.$uid);
+        $resp = $this->client->send($request);
+        return json_decode($resp->getBody(), true);
+    }
+
+}
\ No newline at end of file
diff --git a/src/Wechat/Work/Message.php b/src/Wechat/Work/Message.php
new file mode 100644
index 0000000..13bb1ff
--- /dev/null
+++ b/src/Wechat/Work/Message.php
@@ -0,0 +1,91 @@
+<?php
+
+namespace Wechat\Work;
+
+abstract class Message extends Base
+{
+
+    const TYPE_TEXT = 'text';
+    const TYPE_IMAGE = 'image';
+    const TYPE_VOICE = 'voice';
+    const TYPE_VIDEO = 'video';
+    const TYPE_FILE = 'file';
+    const TYPE_TEXT_CARD = 'textcard';
+    const TYPE_NEWS = 'news';
+    const TYPE_MP_NEWS = 'mpnews';
+
+    protected $type;
+    protected $attr;
+    protected $safe;
+
+    protected $params;
+
+    abstract public function toArray();
+
+    public function ofAgent($agentId)
+    {
+        $this->params['agentid'] = $agentId;
+        return $this;
+    }
+
+    public function toUser($user)
+    {
+        $this->params['touser'] = $user;
+        return $this;
+    }
+
+    public function send()
+    {
+        $request = $this->transformForJsonRequest('POST', 'message/send',
+            $this->toArray());
+        $resp = $this->client->send($request);
+        return json_decode($resp->getBody(), true);
+    }
+
+//    {
+//        switch ($this->type) {
+//            case self::TYPE_TEXT:
+//                return [
+//                    'text' => [
+//                        'content' => $this->attr['content'],
+//                    ]
+//                ];
+//            case self::TYPE_IMAGE:
+//                return [
+//                    'image' => [
+//                        'media_id' => $this->attr['media_id'],
+//                    ]
+//                ];
+//            case self::TYPE_VOICE:
+//                return [
+//                    'voice' => [
+//                        'media_id' => $this->attr['media_id'],
+//                    ]
+//                ];
+//            case self::TYPE_VIDEO:
+//                return [
+//                    'video' => [
+//                        'media_id' => $this->attr['media_id'],
+//                        'title' => $this->attr['title'],
+//                        'description' => $this->attr['description'],
+//                    ]
+//                ];
+//            case self::TYPE_FILE:
+//                return [
+//                    'file' => [
+//                        'media_id' => $this->attr['media_id'],
+//                    ]
+//                ];
+//            case self::TYPE_TEXT_CARD:
+//                $arr = [
+//                    'textcard' => [
+//                        'title' => $this->attr['title'],
+//                        'description' => $this->attr['description'],
+//                        'url' => $this->attr['url'],
+//                        'btntxt' => $this->attr['btntxt'],
+//                    ]
+//                ];
+//        }
+//    }
+
+}
\ No newline at end of file
diff --git a/src/Wechat/Work/TextCardMessage.php b/src/Wechat/Work/TextCardMessage.php
new file mode 100644
index 0000000..a432521
--- /dev/null
+++ b/src/Wechat/Work/TextCardMessage.php
@@ -0,0 +1,62 @@
+<?php
+
+namespace Wechat\Work;
+
+class TextCardMessage extends Message
+{
+
+
+    protected $type;
+    protected $attr;
+
+    public function __construct()
+    {
+        parent::__construct();
+        $this->type = self::TYPE_TEXT_CARD;
+    }
+
+    public function title($title)
+    {
+        $this->attr['title'] = $title;
+        return $this;
+    }
+
+    public function desc($desc)
+    {
+        $this->attr['description'] = $desc;
+        return $this;
+    }
+
+    public function button($text)
+    {
+        $this->attr['btntxt'] = $text;
+        return $this;
+    }
+
+    public function url($url)
+    {
+        $this->attr['url'] = $url;
+        return $this;
+    }
+
+    public function toArray()
+    {
+        $arr = [
+            'msgtype' => $this->type,
+            $this->type => [
+                'title' => $this->attr['title'],
+                'description' => $this->attr['description'],
+                'url' => $this->attr['url'],
+                'btntxt' => $this->attr['btntxt'],
+            ],
+            'safe' => $this->safe,
+        ];
+
+        if (!empty($this->params)) {
+            $arr = array_merge($this->params, $arr);
+        }
+
+        return $arr;
+    }
+
+}
\ No newline at end of file
diff --git a/src/Wechat/Work/TextMessage.php b/src/Wechat/Work/TextMessage.php
new file mode 100644
index 0000000..fe43b13
--- /dev/null
+++ b/src/Wechat/Work/TextMessage.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace App\Wechat\Work;
+
+class TextMessage extends Message
+{
+
+    protected $type;
+    protected $attr;
+
+    public function __construct($content)
+    {
+        parent::__construct();
+        $this->type = self::TYPE_TEXT;
+        $this->attr['content'] = $content;
+    }
+
+    public function toArray()
+    {
+        $arr = [
+            'msgtype' => $this->type,
+            $this->type => [
+                'content' => $this->attr['content'],
+            ],
+            'safe' => $this->safe,
+        ];
+
+        if (!empty($this->params)) {
+            $arr = array_merge($this->params, $arr);
+        }
+
+        return $arr;
+    }
+
+}
\ No newline at end of file
diff --git a/src/config.php b/src/config.php
new file mode 100644
index 0000000..ae0cb6a
--- /dev/null
+++ b/src/config.php
@@ -0,0 +1,16 @@
+<?php
+return [
+    /**
+     * 企业微信的配置
+     */
+    'work' => [
+        //企业ID
+        'corp_id' => '',
+        //企业内各个应用的 secrets
+        'secrets' => [
+            'auth' => '',
+            'contact' => env('WECHAT_WORK_SECRET_CONTACT'),
+            'external_contact' => env('WECHAT_WORK_SECRET_EXTERNAL_CONTACT'),
+        ],
+    ]
+];
\ No newline at end of file
diff --git a/tests/1.php b/tests/1.php
new file mode 100644
index 0000000..e69de29