Downloading a file and showing progress via curl.

[Daniel Kozak]

On Tue, Aug 20, 2019 at 1:46 PM Daniel Kozak <kozzi11 at gmail.com> wrote:
>
> On Tue, Aug 20, 2019 at 1:40 PM BoQsc via Digitalmars-d-learn
> <digitalmars-d-learn at puremagic.com> wrote:
> >
> > Hello everyone,
> > I found this snippet on
> > https://dlang.org/phobos/std_net_curl.html#.HTTP
> >
> > > import std.net.curl : HTTP;
> > > import std.stdio : writeln;
> > >
> > > void main()
> > > {
> > >     auto http = HTTP();
> > >     // Track progress
> > >     http.method = HTTP.Method.get;
> > >     http.url =
> > > "https://upload.wikimedia.org/wikipedia/commons/5/53/Wikipedia-logo-en-big.png";
> > >     http.onReceive = (ubyte[] data) { return data.length; };
> > >     http.onProgress = (size_t dltotal, size_t dlnow, size_t
> > > ultotal, size_t ulnow) {
> > >         writeln("Progress ", dltotal, ", ", dlnow, ", ",
> > > ultotal, ", ", ulnow);
> > >         return 0;
> > >     };
> > >     http.perform();
> > > }
> >
> > This snippet is showing Download Progress in bytes, but I'm
> > unsure how to save the
> > downloaded file into filesystem after download is completed.
>
> You just need to save data in onReceive callback

For that you can use https://dlang.org/phobos/std_file#append