# 桶配额
#### 设置桶配额
您可以通过setBucketQuota设置桶配额。以下代码展示如何设置桶配额：
```
static OBSClient *client;
NSString *endPoint = @"https://your-endpoint";
// 认证用的ak和sk硬编码到代码中或者明文存储都有很大的安全风险，建议在配置文件或者环境变量中密文存放，使用时解密，确保安全；本示例以ak和sk保存在环境变量中为例，运行本示例前请先在本地环境中设置环境变量AccessKeyID和SecretAccessKey。
// 您可以登录访问管理控制台获取访问密钥AK/SK，获取方式请参见https://support.huaweicloud.com/usermanual-ca/ca_01_0003.html
char* ak_env = getenv("AccessKeyID");
char* sk_env = getenv("SecretAccessKey");
if (ak_env == NULL || sk_env == NULL) {
    NSLog(@"Error: AccessKeyID or SecretAccessKey environment variable not set");
    return;
}
NSString *AK = [NSString stringWithUTF8String:ak_env];
NSString *SK = [NSString stringWithUTF8String:sk_env];
// 初始化身份验证
OBSStaticCredentialProvider *credentialProvider = [[OBSStaticCredentialProvider alloc] initWithAccessKey:AK secretKey:SK];
    
//初始化服务配置
OBSServiceConfiguration *conf = [[OBSServiceConfiguration alloc] initWithURLString:endPoint credentialProvider:credentialProvider];
    
// 初始化client
client = [[OBSClient alloc] initWithConfiguration:conf];
    
// 设置桶配额
OBSQuota *quota = [[OBSQuota alloc] initWithQuotaNumber:[NSNumber numberWithLongLong:1024*1024*1024]];
    
OBSSetBucketQuotaRequest *request = [[OBSSetBucketQuotaRequest alloc] initWithBucketName:@"bucketname" quota:quota];
[client setBucketQuota:request completionHandler:^(OBSSetBucketQuotaResponse *response, NSError *error) {
    NSLog(@"%@",response.statusCode);
}];
```
![](https://support.huaweicloud.com/sdk-ios-devg-obs/public_sys-resources/note_3.0-zh-cn.png)
桶配额值必须为非负整数，单位为字节，支持的最大值为2^63^ - 1。
#### 获取桶配额
您可以通过getBucketQuota获取桶配额。以下代码展示如何获取桶配额：
```
static OBSClient *client;
NSString *endPoint = @"https://your-endpoint";
// 认证用的ak和sk硬编码到代码中或者明文存储都有很大的安全风险，建议在配置文件或者环境变量中密文存放，使用时解密，确保安全；本示例以ak和sk保存在环境变量中为例，运行本示例前请先在本地环境中设置环境变量AccessKeyID和SecretAccessKey。
// 您可以登录访问管理控制台获取访问密钥AK/SK，获取方式请参见https://support.huaweicloud.com/usermanual-ca/ca_01_0003.html
char* ak_env = getenv("AccessKeyID");
char* sk_env = getenv("SecretAccessKey");
if (ak_env == NULL || sk_env == NULL) {
    NSLog(@"Error: AccessKeyID or SecretAccessKey environment variable not set");
    return;
}
NSString *AK = [NSString stringWithUTF8String:ak_env];
NSString *SK = [NSString stringWithUTF8String:sk_env];
// 初始化身份验证
OBSStaticCredentialProvider *credentialProvider = [[OBSStaticCredentialProvider alloc] initWithAccessKey:AK secretKey:SK];
    
//初始化服务配置
OBSServiceConfiguration *conf = [[OBSServiceConfiguration alloc] initWithURLString:endPoint credentialProvider:credentialProvider];
    
// 初始化client
client = [[OBSClient alloc] initWithConfiguration:conf];
    
// 获取桶配额
OBSGetBucketQuotaRequest *request = [[OBSGetBucketQuotaRequest alloc]initWithBucketName:@"bucketname"];
    
[client getBucketQuota:request completionHandler:^(OBSGetBucketQuotaResponse *response, NSError *error){
    NSLog(@"%@",response.quota);
}];
```