Small snippet to recover local recordings Zencastr has stored in IndexedDB. I used this to recover an audio file that failed to upload.

zencaster-recover.js

app.location.recordings.each(function (recording) { 
  recording.tracks.each(function (track) { 
    track.downloadFromLocal(window.location.href); 
  }) 
})

Zencastr Recovery Script.md

Zencastr Recovery Script

This is a small snippet to recover local recordings Zencastr has stored in IndexedDB. I used this to recover an audio file that failed to upload.

To run it (instrutions for Google Chrome, you may have to adapt for other web browsers):

1. open the web browser you were using when you made the recording,
2. visit the Zencastr URL where you made the recording,
3. right click on the page and select "Inspect",
4. click on the "Console" tab,
5. paste the script into the prompt and hit enter.

The file should then show up as a typical download does. For me that's to automatically download in my Downloads directory.

This works! Including on the new audio/video version of the platform. I accidentally ran a 01:53:00 show in an incognito tab and my track failed to upload. This script was able to recover the first 20 minutes of the video and .wav audio and thankfully 01:37:00 of my audio as mp3. I'm still missing the last 16 minutes but I'll take that over nothing. Thanks @mscottford!

Wow! I'm so glad this ended up helping someone. I would have thought for sure that this would have stopped working at some point. That's a real bummer about those last 16 minutes, @adamdexter.

It did! Thanks again. Bummer yes, though 97 minutes is better than 0. Fun fact, after a lot of back and forth the Zencastr support chat, the agent was the one to actually sent me the link to this repo as a "very unconventional" last-ditch option, so this is on their radar, pretty cool!

Summary of my Problem. We had 4 different inputs being recorded... Audio and video. When we stopped the recording it uploaded half, then glitched and froze. We all left and reentered the room and it immediately began recording without anything being clicked. I stopped it at 10 seconds and that uploaded immediately. I couldn't find all of the files. I went back to the classic page and found all except my recording. I really need help finding it.

Everything looks simple except # 5.

5. paste the script into the prompt and hit enter.

What script do I paste. I know nothing about coding or almost anything I see in the Console Tab.

Please help.

Hey @mscottford! Thank you for posting this. This is what happens when I try out your script:

Thank you @mscottford! This worked fabulously. I followed your instructions and was able to retrieve the mp3 file when the recovery link by Zencastr did not work. You saved my life!

Hola buenas, porfavor alguien sabe que hacer cuando no puedo acceder al ordenador de mi invitado.
Tengo mis archivos pero los suyos están en un limbo y necesito recuperarlos

I am getting Uncaught (in promise) Error: Store is empty which looks like the same issue as https://gist.github.com/mscottford/16f0222b75e5f0ac70e4b2076ecf7b15#gistcomment-3652565 .
This happened with Chromium. Apparently I have to re-record everything...

@tylerlwhite:

Hey @mscottford! Thank you for posting this. This is what happens when I try out your script:

@ joaquimrocha:

I am getting Uncaught (in promise) Error: Store is empty which looks like the same issue as https://gist.github.com/mscottford/16f0222b75e5f0ac70e4b2076ecf7b15#gistcomment-3652565 . This happened with Chromium. Apparently I have to re-record everything...

It could be that you've found an edge case that this little snippet doesn't work for. Do you see anything saved in localStorage?

I don't have anything indeed in the local storage. This happened on Chromium, no UI feedback at all during the recording that things were not getting stored. 😞