Configuring option
If you have any questions during development, post them on the Issues page of GitHub.
When the function of C SDK is called, obs_options must be input. You can use function init_obs_options to initialize configurations for obs_options, and configure AK, SK, endpoint, bucket, timeout period, and temporary authentication by using obs_options. obs_options consists of obs_bucket_context and obs_http_request_option. The following table describes the parameters that can be set.
| Parameter | Description | Default Value | Recommended Value |
|---|---|---|---|
| host_name | The requested host name, which is the domain name (the endpoint) of the server where the requested resource is stored. | NULL | - |
| bucket_name | Name of the bucket where the operation is performed | NULL | - |
| protocol | The protocol used for sending requests. Possible values include HTTP and HTTPS. For security purposes, you are advised to use HTTPS. | HTTPS protocol: OBS_PROTOCOL_HTTPS | OBS_PROTOCOL_HTTPS |
| access_key | AK of OBS | NULL | - |
| secret_access_key | SK used for authentication. It can be used to sign a character string. | NULL | - |
| obs_storage_class | Set this parameter when the storage class needs to be configured in the PUT or POST request. | OBS Standard: OBS_STORAGE_CLASS_STANDARD | Default value |
| token | Security token of the temporary access key | NULL | - |
| bucket_type | Specifies whether a bucket is a bucket for object storage or a bucket used as a parallel file system. | Bucket for object storage: OBS_BUCKET_OBJECT | - |
| bucket_list_type | Specifies the type of buckets when listing: all buckets, buckets for object storage, and buckets used as parallel file systems. | All buckets: OBS_BUCKET_LIST_ALL | - |
| Parameter | Description | Default Value | Recommended Value |
|---|---|---|---|
| connect_time | Timeout period for establishing an HTTP/HTTPS connection, in ms. The default value is 60,000. | 60000 | 10000 to 60000 |
| max_connected_time | Timeout period (in seconds) of an HTTP/HTTPS request. The value 0 indicates that the link is never disconnected. | 0 | 0 |
| proxy_auth | Proxy authentication information, in the format of Username:Password | NULL | - |
| proxy_host | Proxy server | NULL | - |
If the network is unstable, you are advised to set larger values for connect_time and max_connected_time.
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