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    <title>topic Re: upload/download only differences in Dropbox API Support &amp; Feedback</title>
    <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/upload-download-only-differences/m-p/210647#M10529</link>
    <description>&lt;BLOCKQUOTE&gt;&lt;HR /&gt;Greg K. ha escrito:&lt;BR /&gt;Hi Ed, thanks for the post. That's correct, the Dropbox API doesn't offer delta uploading like that. I'll pass this along as a feature request. Apologies I don't have better news!&lt;HR /&gt;&lt;/BLOCKQUOTE&gt;&lt;P&gt;Thanks for your answer Greg, and yes, please, it is a feature request.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;The must be a way to do it because the Desktop Synch program does it, but&amp;nbsp;anyway I'm not willing to work with undocumented features that could change at any moment.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
    <pubDate>Wed, 08 Mar 2017 22:35:48 GMT</pubDate>
    <dc:creator>Ed-</dc:creator>
    <dc:date>2017-03-08T22:35:48Z</dc:date>
    <item>
      <title>upload/download only differences</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/upload-download-only-differences/m-p/210634#M10525</link>
      <description>&lt;P&gt;Hello,&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;I'm working in a desktop application, and I'm working directly with API calls (not using an SDK).&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;I have most of the RPC endpoints already implemented and working, and now started to work with the upload and download endpoints.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;The problem arises when I find out that Dropbox in the Synch desktop utility seems to use (correct me if I'm wrong) delta comparing and it sends only the differences of two versions of a file: I mean, when a file changes, it doesn't upload or dowload the whole file, but only the differences.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Here there is information: &lt;A href="https://www.dropbox.com/en/help/8" target="_blank"&gt;https://www.dropbox.com/en/help/8&lt;/A&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;But I don't see any documented API for doing that in &lt;A href="https://www.dropbox.com/developers/documentation/http/documentation" target="_blank"&gt;https://www.dropbox.com/developers/documentation/http/documentation&lt;/A&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;I found that there is a library for doing the file comparison: &lt;A href="https://github.com/dropbox/librsync" target="_blank"&gt;https://github.com/dropbox/librsync&lt;/A&gt; but I have no idea how to use it.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;I can't believe that all the other applications besides the Synch desktop utility provided by Dropbox are forced to upload or download the whole file every times a few bytes change.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Where can I find information about this?&lt;/P&gt;&lt;P&gt;Thanks in advance.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Wed, 29 May 2019 09:25:02 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/upload-download-only-differences/m-p/210634#M10525</guid>
      <dc:creator>Ed-</dc:creator>
      <dc:date>2019-05-29T09:25:02Z</dc:date>
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    <item>
      <title>Re: upload/download only differences</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/upload-download-only-differences/m-p/210644#M10528</link>
      <description>Hi Ed, thanks for the post. That's correct, the Dropbox API doesn't offer delta uploading like that. I'll pass this along as a feature request. Apologies I don't have better news!</description>
      <pubDate>Wed, 08 Mar 2017 22:22:57 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/upload-download-only-differences/m-p/210644#M10528</guid>
      <dc:creator>Greg-DB</dc:creator>
      <dc:date>2017-03-08T22:22:57Z</dc:date>
    </item>
    <item>
      <title>Re: upload/download only differences</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/upload-download-only-differences/m-p/210647#M10529</link>
      <description>&lt;BLOCKQUOTE&gt;&lt;HR /&gt;Greg K. ha escrito:&lt;BR /&gt;Hi Ed, thanks for the post. That's correct, the Dropbox API doesn't offer delta uploading like that. I'll pass this along as a feature request. Apologies I don't have better news!&lt;HR /&gt;&lt;/BLOCKQUOTE&gt;&lt;P&gt;Thanks for your answer Greg, and yes, please, it is a feature request.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;The must be a way to do it because the Desktop Synch program does it, but&amp;nbsp;anyway I'm not willing to work with undocumented features that could change at any moment.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Wed, 08 Mar 2017 22:35:48 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/upload-download-only-differences/m-p/210647#M10529</guid>
      <dc:creator>Ed-</dc:creator>
      <dc:date>2017-03-08T22:35:48Z</dc:date>
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