Downloading - get a callback when received all the request headers

Question

I use ion library for downloading files in my app. I want to read the response headers, check a particular header and either cancel or continue the download. Of course I can execute the HEAD query, check the header, and then execute the GET query. But I want to execute only one request.

Is there a way to get a callback when received all the headers, handle them and either continue or cancel the download?

score 1 · Accepted Answer · answered Jul 10 '15 at 05:34

1

Use the onHeaders callback.

.onHeaders(...)

https://github.com/koush/ion/blob/master/ion/src/com/koushikdutta/ion/builder/RequestBuilder.java#L186

answered Jul 10 '15 at 05:34

koush

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31

Thanks! I'll try your variant. – ilyamuromets Jul 10 '15 at 08:41

score 0 · Answer 2 · answered Jul 10 '15 at 08:46

I found another solution. Maybe it's better?

Ion.getDefault(<Context>).getHttpClient().insertMiddleware(new SimpleMiddleware()
{
    @Override
    public void onHeadersReceived(OnHeadersReceivedDataOnRequestSentData data)
    {
        super.onHeadersReceived(data);
    }
});

Downloading - get a callback when received all the request headers

2 Answers2