====获取token====
**调用地址**
<code>
POST /getToken.json
</code>

**请求参数**
^名称               ^类型     ^必需的     ^注释 ^
|grant_type         |varchar  |是         |验签类型，写入client_credentials即可|

**调用者权限**
<code>
所有客服
</code>

**调用示例**
<code>
curl --location --request POST 'http://www.bangwo8.com/api/token.php' \
--header 'Authorization: Basic U2VjcmV0SUQ6U2VjcmV0' \
--form 'grant_type="client_credentials"'
</code>

**返回值参数**
^名称               ^类型      ^注释 ^
|access_token       |varchar  |token令牌|
|expires_in         |int      |有效时间：3600s|
|token_type         |varchar  |token类型|
|scope              |varchar  |权限|

**返回值示例**
成功时：
<code>
{
    "access_token": "d560fbabcabffdba6e1c50767312d331ffbed879",
    "expires_in": 3600,
    "token_type": "Bearer",
    "scope": null
}

</code>

密钥不正确或者无法匹配时：
<code>
{
    "error":"invalid_client",
    "error_description":"The client credentials are invalid"
}
</code>

请求方式不正确时：
<code>
{
    "error": "invalid_request",
    "error_description": "The request method must be POST when requesting an access token",
    "error_uri": "http://tools.ietf.org/html/rfc6749#section-3.2"
}

</code>