### 34.4 Networking Utilities

— Loadable Function: s = urlread (url)
— Loadable Function: [s, success] = urlread (url)
— Loadable Function: [s, success, message] = urlread (url)
— Loadable Function: [...] = urlread (url, method, param)

> Download a remote file specified by its URL and return its content in string s. For example,

>               s = urlread ("ftp://ftp.octave.org/pub/octave/README");

> The variable success is 1 if the download was successful, otherwise it is 0 in which case message contains an error message. If no output argument is specified and if an error occurs, then the error is signaled through Octave's error handling mechanism.

> This function uses libcurl. Curl supports, among others, the HTTP, FTP and FILE protocols. Username and password may be specified in the URL. For example,

>               s = urlread ("http://user:password@example.com/file.txt");

> GET and POST requests can be specified by method and param. The parameter method is either ‘`get`’ or ‘`post`’ and param is a cell array of parameter and value pairs. For example,

>               s = urlread ("http://www.google.com/search", "get",
>                            {"query", "octave"});

> See also: urlwrite.

— Loadable Function: urlwrite (URL, localfile)
— Loadable Function: f = urlwrite (url, localfile)
— Loadable Function: [f, success] = urlwrite (url, localfile)
— Loadable Function: [f, success, message] = urlwrite (url, localfile)

> Download a remote file specified by its URL and save it as localfile. For example,

>               urlwrite ("ftp://ftp.octave.org/pub/octave/README",
>                         "README.txt");

> The full path of the downloaded file is returned in f. The variable success is 1 if the download was successful, otherwise it is 0 in which case message contains an error message. If no output argument is specified and if an error occurs, then the error is signaled through Octave's error handling mechanism.

> This function uses libcurl. Curl supports, among others, the HTTP, FTP and FILE protocols. Username and password may be specified in the URL, for example:

>               urlwrite ("http://username:password@example.com/file.txt",
>                         "file.txt");

> GET and POST requests can be specified by method and param. The parameter method is either ‘`get`’ or ‘`post`’ and param is a cell array of parameter and value pairs. For example:

>               urlwrite ("http://www.google.com/search", "search.html",
>                         "get", {"query", "octave"});

> See also: urlread.