![]() Optional arguments: -d, -destination The container and name of the destination object. Specify multiple times for multiple objects ![]() Positional arguments: Name of container to copy from. If destination is not set, will update metadata of object Usage: swift copy Ĭopies object to new destination, optionally updates objects metadata. SSLĬompression should be disabled by default by the no-ssl-compression This option is deprecated and not used anymore. insecure Allow swiftclient to access servers without having toĮnv (set to 'true' to enable). R RETRIES, -retries=RETRIES The number of times to retry a failed connection. K KEY, -key=KEY Key for obtaining an auth token. U USER, -user=USER User name for obtaining an auth token. V AUTH_VERSION, -auth-version=AUTH_VERSION, -os-identity-api-version=AUTH_VERSION Specify a version for authentication. A AUTH, -auth=AUTH URL for obtaining an auth token. info Show the curl commands and results of all http queries debug Show the curl commands and results of all http queries s, -snet Use SERVICENET internal network. Swift optional arguments ¶ -version show program's version number and exit -h, -help show this help message and exit -os-help Show OpenStack authentication options. auth Display auth related environment variables. upload Uploads files or directories to the given container. copy Copies object, optionally adds meta stat Displays information for the account, container, Or object creates containers if not present. post Updates meta information for the account, container, list Lists the containers for the account or the objectsįor a container. download Download objects from containers. Subcommands: delete Delete a container or objects within a container. When writing client code, you want to gracefully handle any server-side errors, but a forced unwrapping operator will crash your app if it fails.Usage: swift It is a minor point, but one should probably refrain from using the forced unwrapping operator, !, when parsing server responses. So the function performing the network request should not be updating the model objects, itself, but rather supply the returned information via the aforementioned completion handler. We want to disentangle the network request code from the updating of some model object. the user dismisses the view the user supplies new query parameters that invalidate the need for the initial request etc.). But it is very useful to get in the habit of returning this URLSessionTask so the caller can cancel it if it needs to (e.g. You might not be using it at this point, so you might declare it as a indicating that you are returning this information, but that it is OK if the caller does not avail itself of this task object at this point. If you are writing a utility method to perform the request, you probably should return the related URLSessionTask in case the caller might want to cancel the request. but it is also useful when you start using more structured responses) ![]() You should look at the HTTP status code and make sure it is 2xx, to make sure the request succeeded (which is especially important when your web service is only returning a string. This routine should use a completion handler closure, so the caller can supply code to be called when the asynchronous network request finishes Have a single routine that performs the network request and fetches the string ![]()
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