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    <title>topic Re: File Upload Limit in Dropbox API Support &amp; Feedback</title>
    <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/File-Upload-Limit/m-p/588744#M27418</link>
    <description>&lt;P&gt;Hi &lt;a href="https://www.dropboxforum.com/t5/user/viewprofilepage/user-id/497036"&gt;@ShiminCai&lt;/a&gt;,&lt;/P&gt;&lt;P&gt;There isn't file size limit (there is actually but it's big enough, so doesn't matter), but it's a single transaction limit - not guaranteed more than 150MB. As can be seen in your code you are using single transaction upload only. Is it so, or just something is missing in your post. In such a case you are setting implicit limitation from transaction size to the file size! You can use upload sessions for bigger files, so to spread upload to multiple transactions (every one smaller than 150MB). &lt;img class="lia-deferred-image lia-image-emoji" src="https://www.dropboxforum.com/html/@41457EF40051AFF130FDBFE21B496926/emoticons/1f609.png" alt=":winking_face:" title=":winking_face:" /&gt;&lt;/P&gt;&lt;P&gt;Hope this helps.&lt;/P&gt;</description>
    <pubDate>Wed, 06 Apr 2022 12:53:42 GMT</pubDate>
    <dc:creator>Здравко</dc:creator>
    <dc:date>2022-04-06T12:53:42Z</dc:date>
    <item>
      <title>File Upload Limit</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/File-Upload-Limit/m-p/588635#M27410</link>
      <description>&lt;P&gt;Hi there,&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;In our iOS app we are uploading files to our Dropbox with this Swift method:&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&lt;SPAN&gt;&lt;STRONG&gt;func&lt;/STRONG&gt;&lt;/SPAN&gt; &lt;SPAN&gt;upload&lt;/SPAN&gt;(&lt;SPAN&gt;_&lt;/SPAN&gt; destinationPath: &lt;SPAN&gt;String&lt;/SPAN&gt;, &lt;SPAN&gt;fileUrl&lt;/SPAN&gt;: &lt;SPAN&gt;URL&lt;/SPAN&gt;, &lt;SPAN&gt;completion&lt;/SPAN&gt;: &lt;SPAN&gt;&lt;STRONG&gt;@escaping&lt;/STRONG&gt;&lt;/SPAN&gt; (&lt;SPAN&gt;Bool&lt;/SPAN&gt;) -&amp;gt; &lt;SPAN&gt;Void&lt;/SPAN&gt;) {&lt;/P&gt;
&lt;P&gt;&lt;SPAN&gt;&lt;SPAN class=""&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;&lt;/SPAN&gt;&lt;/SPAN&gt;&lt;SPAN class=""&gt;&amp;nbsp;&lt;/SPAN&gt;&lt;SPAN&gt;client&lt;/SPAN&gt;.&lt;SPAN&gt;files&lt;/SPAN&gt;.&lt;SPAN&gt;upload&lt;/SPAN&gt;(&lt;SPAN&gt;path&lt;/SPAN&gt;: destinationPath, &lt;SPAN&gt;input&lt;/SPAN&gt;: fileUrl)&lt;/P&gt;
&lt;P&gt;&lt;SPAN class=""&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &lt;/SPAN&gt;.&lt;SPAN&gt;response&lt;/SPAN&gt; { response, error &lt;SPAN&gt;&lt;STRONG&gt;in&lt;/STRONG&gt;&lt;/SPAN&gt;&lt;/P&gt;
&lt;P&gt;&lt;SPAN class=""&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &lt;/SPAN&gt;&lt;SPAN&gt;&lt;STRONG&gt;if&lt;/STRONG&gt;&lt;/SPAN&gt; error != &lt;SPAN&gt;&lt;STRONG&gt;nil&lt;/STRONG&gt;&lt;/SPAN&gt; {&lt;/P&gt;
&lt;P&gt;&lt;SPAN class=""&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &lt;/SPAN&gt;&lt;SPAN&gt;print&lt;/SPAN&gt;(error?.&lt;SPAN&gt;description&lt;/SPAN&gt;)&lt;/P&gt;
&lt;P&gt;&lt;SPAN class=""&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &lt;/SPAN&gt;}&lt;/P&gt;
&lt;P&gt;&lt;SPAN class=""&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &lt;/SPAN&gt;&lt;SPAN&gt;&lt;STRONG&gt;if&lt;/STRONG&gt;&lt;/SPAN&gt; &lt;SPAN&gt;&lt;STRONG&gt;let&lt;/STRONG&gt;&lt;/SPAN&gt; response = response {&lt;/P&gt;
&lt;P&gt;&lt;SPAN class=""&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &lt;/SPAN&gt;completion(&lt;SPAN&gt;&lt;STRONG&gt;true&lt;/STRONG&gt;&lt;/SPAN&gt;)&lt;/P&gt;
&lt;P&gt;&lt;SPAN class=""&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &lt;/SPAN&gt;} &lt;SPAN&gt;&lt;STRONG&gt;else&lt;/STRONG&gt;&lt;/SPAN&gt; {&lt;/P&gt;
&lt;P&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; print(error)&lt;/P&gt;
&lt;P&gt;&lt;SPAN class=""&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &lt;/SPAN&gt;completion(&lt;SPAN&gt;&lt;STRONG&gt;false&lt;/STRONG&gt;&lt;/SPAN&gt;)&lt;/P&gt;
&lt;P&gt;&lt;SPAN class=""&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &lt;/SPAN&gt;}&lt;/P&gt;
&lt;P&gt;&lt;SPAN class=""&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &lt;/SPAN&gt;DispatchQueue.&lt;SPAN&gt;main&lt;/SPAN&gt;.&lt;SPAN&gt;async&lt;/SPAN&gt; {&lt;/P&gt;
&lt;P&gt;&lt;SPAN class=""&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &lt;/SPAN&gt;&lt;SPAN&gt;SVProgressHUD&lt;/SPAN&gt;.&lt;SPAN&gt;dismiss&lt;/SPAN&gt;()&lt;/P&gt;
&lt;P&gt;&lt;SPAN class=""&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &lt;/SPAN&gt;}&lt;/P&gt;
&lt;P&gt;&lt;SPAN class=""&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &lt;/SPAN&gt;}&lt;/P&gt;
&lt;P&gt;&lt;SPAN class=""&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &lt;/SPAN&gt;.&lt;SPAN&gt;progress&lt;/SPAN&gt; { progressData &lt;SPAN&gt;&lt;STRONG&gt;in&lt;/STRONG&gt;&lt;/SPAN&gt;&lt;/P&gt;
&lt;P&gt;&lt;SPAN class=""&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &lt;/SPAN&gt;&lt;SPAN&gt;&lt;STRONG&gt;let&lt;/STRONG&gt;&lt;/SPAN&gt; completedUnitCount = &lt;SPAN&gt;Float&lt;/SPAN&gt;(progressData.&lt;SPAN&gt;completedUnitCount&lt;/SPAN&gt;)&lt;/P&gt;
&lt;P&gt;&lt;SPAN class=""&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &lt;/SPAN&gt;&lt;SPAN&gt;&lt;STRONG&gt;let&lt;/STRONG&gt;&lt;/SPAN&gt; totalUnitCount = &lt;SPAN&gt;Float&lt;/SPAN&gt;(progressData.&lt;SPAN&gt;totalUnitCount&lt;/SPAN&gt;)&lt;/P&gt;
&lt;P&gt;&lt;SPAN class=""&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &lt;/SPAN&gt;&lt;SPAN&gt;&lt;STRONG&gt;let&lt;/STRONG&gt;&lt;/SPAN&gt; progress = completedUnitCount / totalUnitCount&lt;/P&gt;
&lt;P&gt;&lt;SPAN class=""&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &lt;/SPAN&gt;DispatchQueue.&lt;SPAN&gt;main&lt;/SPAN&gt;.&lt;SPAN&gt;async&lt;/SPAN&gt; {&lt;/P&gt;
&lt;P&gt;&lt;SPAN&gt;&lt;SPAN class=""&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &lt;/SPAN&gt;&lt;/SPAN&gt;&lt;SPAN&gt;SVProgressHUD&lt;/SPAN&gt;&lt;SPAN&gt;.&lt;/SPAN&gt;&lt;SPAN&gt;show&lt;/SPAN&gt;&lt;SPAN&gt;(&lt;/SPAN&gt;&lt;SPAN&gt;withStatus&lt;/SPAN&gt;&lt;SPAN&gt;: &lt;/SPAN&gt;"Uploading Plan documents to dropbox...\n&lt;SPAN&gt;\(&lt;/SPAN&gt;&lt;SPAN&gt;Int&lt;/SPAN&gt;&lt;SPAN&gt;(progress * &lt;/SPAN&gt;&lt;SPAN&gt;100&lt;/SPAN&gt;&lt;SPAN&gt;))&lt;/SPAN&gt;% completed"&lt;SPAN&gt;)&lt;/SPAN&gt;&lt;/P&gt;
&lt;P&gt;&lt;SPAN class=""&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &lt;/SPAN&gt;}&lt;/P&gt;
&lt;P&gt;&lt;SPAN class=""&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &lt;/SPAN&gt;}&lt;/P&gt;
&lt;P&gt;}&lt;/P&gt;
&lt;P&gt;It's been working fine until now...&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;One of our users was uploading a big file (521.5 mb) and encountered an uploading failure error at last moment having reached 100% upload. The Dropbox API threw this error and as a result no file was uploaded:&lt;/P&gt;
&lt;P&gt;&lt;span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Screen Shot 2022-04-05 at 4.48.32 pm.png" style="width: 400px;"&gt;&lt;img src="https://www.dropboxforum.com/t5/image/serverpage/image-id/28539iD2A3B3BEFDC319F0/image-size/medium?v=v2&amp;amp;px=400" role="button" title="Screen Shot 2022-04-05 at 4.48.32 pm.png" alt="Screen Shot 2022-04-05 at 4.48.32 pm.png" /&gt;&lt;/span&gt;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;However, uploading works fine with smaller files. Just wondering if there is any file size upload limit in Dropbox?  How could we fix the upload failure? Your help is much appreciated.&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;Cheers,&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;Shimin&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;
&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Wed, 06 Apr 2022 00:45:01 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/File-Upload-Limit/m-p/588635#M27410</guid>
      <dc:creator>ShiminCai</dc:creator>
      <dc:date>2022-04-06T00:45:01Z</dc:date>
    </item>
    <item>
      <title>Re: File Upload Limit</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/File-Upload-Limit/m-p/588744#M27418</link>
      <description>&lt;P&gt;Hi &lt;a href="https://www.dropboxforum.com/t5/user/viewprofilepage/user-id/497036"&gt;@ShiminCai&lt;/a&gt;,&lt;/P&gt;&lt;P&gt;There isn't file size limit (there is actually but it's big enough, so doesn't matter), but it's a single transaction limit - not guaranteed more than 150MB. As can be seen in your code you are using single transaction upload only. Is it so, or just something is missing in your post. In such a case you are setting implicit limitation from transaction size to the file size! You can use upload sessions for bigger files, so to spread upload to multiple transactions (every one smaller than 150MB). &lt;img class="lia-deferred-image lia-image-emoji" src="https://www.dropboxforum.com/html/@41457EF40051AFF130FDBFE21B496926/emoticons/1f609.png" alt=":winking_face:" title=":winking_face:" /&gt;&lt;/P&gt;&lt;P&gt;Hope this helps.&lt;/P&gt;</description>
      <pubDate>Wed, 06 Apr 2022 12:53:42 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/File-Upload-Limit/m-p/588744#M27418</guid>
      <dc:creator>Здравко</dc:creator>
      <dc:date>2022-04-06T12:53:42Z</dc:date>
    </item>
    <item>
      <title>Re: File Upload Limit</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/File-Upload-Limit/m-p/588791#M27423</link>
      <description>&lt;P&gt;&lt;a href="https://www.dropboxforum.com/t5/user/viewprofilepage/user-id/497036"&gt;@ShiminCai&lt;/a&gt; Yes, as Здравко mentioned, &lt;A href="http://dropbox.github.io/SwiftyDropbox/api-docs/latest/Classes/FilesRoutes.html#/s:13SwiftyDropbox11FilesRoutesC6upload4path4mode10autorename14clientModified4mute14propertyGroups14strictConflict5inputAA13UploadRequestCyAA0C0C22FileMetadataSerializerCAP0q5ErrorU0CGSS_AP9WriteModeOSb10Foundation4DateVSgSbSayAA0S10PropertiesC13PropertyGroupCGSgSbAX4DataVtF" target="_self"&gt;the upload method&lt;/A&gt; only officially supports uploading files up to 150 MB in size. For larger files, like the "521.5 mb" file you mentioned, you will need to use "&lt;A href="http://dropbox.github.io/SwiftyDropbox/api-docs/latest/Classes/FilesRoutes.html#/s:13SwiftyDropbox11FilesRoutesC18uploadSessionStart5close11sessionType5inputAA13UploadRequestCyAA0C0C0lfG16ResultSerializerCAK0lfg5ErrorO0CGSb_AK0lfJ0OSg10Foundation4DataVtF" target="_self"&gt;upload sessions&lt;/A&gt;".&lt;/P&gt;</description>
      <pubDate>Wed, 06 Apr 2022 15:25:34 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/File-Upload-Limit/m-p/588791#M27423</guid>
      <dc:creator>Greg-DB</dc:creator>
      <dc:date>2022-04-06T15:25:34Z</dc:date>
    </item>
    <item>
      <title>Re: File Upload Limit</title>
      <link>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/File-Upload-Limit/m-p/589522#M27447</link>
      <description>&lt;P&gt;Hi&amp;nbsp;&lt;a href="https://www.dropboxforum.com/t5/user/viewprofilepage/user-id/10"&gt;@Greg-DB&lt;/a&gt;,&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Upload sessions worked. I found the Swift sample using upload sessions you posted in another discussion thread, which worked a treat. Thank you so much for your help.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Cheers,&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Shimin&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Sat, 09 Apr 2022 09:14:43 GMT</pubDate>
      <guid>https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/File-Upload-Limit/m-p/589522#M27447</guid>
      <dc:creator>ShiminCai</dc:creator>
      <dc:date>2022-04-09T09:14:43Z</dc:date>
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