I need to integrate YouTube API into my GWT web application. I need to

Question

Asked: June 16, 20262026-06-16T07:30:08+00:00 2026-06-16T07:30:08+00:00

I need to integrate YouTube API into my GWT web application. I need to make YouTube API calls such as the following:

UPLOAD: https://developers.google.com/youtube/2.0/developers_guide_protocol_browser_based_uploading
CHECK STATUS: https://developers.google.com/youtube/2.0/developers_guide_protocol_checking_video_status
SET DEVELOPER TAGS: https://developers.google.com/youtube/2.0/developers_guide_protocol_uploading_videos#Assigning_Developer_Tags

In order to circumvent browser’s same origin restrictions, the calls have to be CORS calls.

How can I make these YouTube API calls from my GWT web application? A small code sample would be greatly appreciated.

Note that I have tried using YouTube Direct Lite, but it seems it doesn’t allow setting developer tags, which is crucial for me.

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Editorial Team · Answer 1 · 2026-06-16T07:30:09+00:00

Editorial Team

YouTube has provided a sample showing how YouTube API CORS calls should be made:

You can integrate the JavaScript from the sample into your GWT app using GWT’s JavaScript Native Interface (JSNI):

Note that the sample JavaScript uses XMLHttpRequest which is not supported by some browser versions:

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