Fix the strong problem when fetch s3 object

Problem

I used to have a Alexa skill to play the music from my s3 storage, but it did not work properly for a while. In the beginning, I thought it was code logic, but after digging into the logic I could not find the error.

The main problem is here

responseBuilder.addAudioPlayerPlayDirective(
            playBehavior,
            podcast.url,
            enqueueToken,
            offsetInMilliseconds,
            expectedPreviousToken,
          );

It should play the music from the url, I logged the podcast url and I also tried from the browser, it worked fine. But it just could not play the music.

Debug

I used a pure s3 url and I found it worked. I used another url with Chinese character in it, it threw the exception, so I found the error.

Solution

Encode the url with encodeURI(url) and we can get the correct url to fetch the s3 data.