What’s the correct way to send an audio file from a HISE plugin to a backend server?

[daniel_101]

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[daniel_101]

@David-Healey Okay, How do you mean? I don't see how I can do that because unless the backend server is also running on a users device, it can't access the file using its system path and my backend server is hosted on vercel

[David Healey]

@daniel_101 Aha ok, when you said backend I didn't realise you meant a remote system. What about using cURL to upload the file to your server?

[dannytaurus]

You can probably convert the audio file to Base64 and send that way. Only for small files though.

[daniel_101]

@David-Healey Thanks david, Using cURL sounds nice. Can I use cURL within HISE while in production?
I am currently using the Server.callWithPOST function but I can only send the file in a string format (in base64) or as a multipart/form-data format.

[daniel_101]

@dannytaurus Thanks Danny, Yes sending it as a base64 string seemed to the best approach and I've tried using the "File.loadAsBase64()" function to do that but the function on HISE did not return a valid base64 string, As I explained in a previous post and as of the latest update, isn't part of the "File" API anymore.
I would be very grateful if there is any other way to convert a file to base64 in HISE.

[David Healey]

@daniel_101 Yes I think curl should work across platforms, but older versions of Windows might be missing it. I can't remember the details there.

@daniel_101 said in What’s the correct way to send an audio file from a HISE plugin to a backend server?:

"File.loadAsBase64()" function to do that but the function on HISE did not return a valid base64 string,

The function is File.loadAsBase64String(); It's still in the API.

[daniel_101]

@David-Healey said in What’s the correct way to send an audio file from a HISE plugin to a backend server?:

The function is File.loadAsBase64String(); It's still in the API.

Yes the File.loadAsBase64String() function used to exist on HISE but I did not seem to return a valid base64 string. And as of the HISE version I installed today, the File.loadAsBase64String(); no longer exists. Here's a screenshot picture from the HISE API interface:

[David Healey]

@daniel_101 said in What’s the correct way to send an audio file from a HISE plugin to a backend server?:

HISE version I installed today

Built from the develop branch?

[daniel_101]

@David-Healey said in What’s the correct way to send an audio file from a HISE plugin to a backend server?:

Built from the develop branch?

To be honest, I do not know much about how the HISE github repo is structured, but I do not think its from the develop branch, because I downloaded from the Download Installer page on the HISE website. url: https://github.com/christophhart/HISE/releases

[David Healey]

@daniel_101 The release version is very much out of date. Follow the compilation instruction in my free bootcamp course.

[daniel_101]

This post is deleted!

[daniel_101]

@David-Healey Thanks, David. I did take your courses earlier, they’re true life savers!
It also makes sense that the File.loadAsBase64String() function isn't available on the release version of HISE. I previously compiled HISE following your tutorial, but I ran into the issues I described in this forum post, where the string returned from File.loadAsBase64String() didn’t seem to be a valid base64 string. I’ll compile it again, and hopefully I won’t run into the same error. Thanks a lot!