Vibe.d download function, how to get callback when done or error?

[Christian Köstlin]

On 24.09.23 12:01, Joe at bloow.edu wrote:
> On Saturday, 23 September 2023 at 20:20:31 UTC, Christian Köstlin wrote:
>> On 23.09.23 14:07, Joe at bloow.edu wrote:
>>> I'm using download(url, filename) to download files in vibe.d.
>>>
>>> The issue is that I do not know when the download is finished or 
>>> errors. There is a callback for the streaming side but not for the 
>>> file download.
>>>
>> A small test program shows, that if the function return normally the 
>> transfer was done (and the file saved).
>> The function raises an exception if there is e,g, an http error status 
>> communicated.
>>
>> I am not sure what happens if the download is interrupted in the 
>> middle. I guess there will be an exception, but the file might be 
>> written partially.
>>
>>
>>
>> Kind regards,
>> Christian
> 
> I can't do any testing because overnight for no explicable reason the 
> app will not compile any more.
> 
> If it is synchronous then I should be able to do what I need without 
> issue. When I initially was using it and the way the app works it seemed 
> like it was running in parallel because I didn't see it execute 
> synchronously because the tasks were relatively short and I just thought 
> it was asynchronous for some reason(I didn't give it any thought at the 
> time until I got errors in the download and needed to make the code more 
> robust but I can't do anything until I figure out why the code no longer 
> compiles(I made a post about it but it's not showing up yet).
> 
> 
I recommend to use
`https://httpbin.org/drip?duration=20&numbytes=100&code=200&delay=0` as 
url to test vibes download.

Kind regards,
Christian