### 需要授权的接口如何调用(任选一种即可)
* 置于`POST BODY`段,字段名 `api_key`、`timestamp`、`sign`
* 置于`HTTP HEADER`段,字段名 `api-key`、`timestamp`、`sign`
* 置于`COOKIE`段,字段名 `api_key`、`timestamp`、`sign`
### 签名算法
php示例
```
/**
* [apiGenerateSignature 生成签名]
* @param [type] $timestamp [时间戳]
* @param [type] $api_key [api_key]
* @param [type] $secret_key [secret_key]
* @return [type] [sign签名字段]
*/
function apiGenerateSignature($timestamp, $api_key, $secret_key ) {
$token = $secret_key;
$tmpArr = array($token, $timestamp, $api_key);
sort($tmpArr, SORT_STRING);
$tmpStr = implode( $tmpArr );
$signature = sha1( $tmpStr );
return $signature;
}
```