Sending audio message with Twilio Conversations

I am trying to send audio message with twillio conversations. According to the documentation I should send a contentType and a media of type string or Buffer. The Buffer constructor is missing in JS so I used the following method to create a buffer: Here is my send message request (I have tried sending different content types. And even audio in base64. Nothing worked.):

   function toBuffer(ab: any) {
     const buf = Buffer.alloc(ab.byteLength)
     const view = new Uint8Array(ab)
     for (let i = 0; i < buf.length; i += 1) {
       buf[i] = view[i]
    }
    return buf
   }
   const arrayBuffer = await new FileReader().readAsArrayBuffer(new Blob([message.audio]))
   chats[chat].conversation?.sendMessage({
        contentType: 'audio/wav',
        media: toBuffer(arrayBuffer)
      }, {
        messageId: uuidv4(),
        ...attributes
      })

I request the audio URL with the function provided by twillio conversations:

message.media.getContentTemporaryUrl()

It returns a URL which doe not contain a valid audio file and cannot be played. Please help me to find the propper way of send a valid audo message and being able to play it. Thanks

It looks as though you are working with the client side JS library, so using Node features like Buffers won't work.

The media documentation for the JS SDK says:

For JavaScript, you can provide the following as the source for the new media message sent by a Chat-based Conversation Participant:

• A new FormData object containing file information: filename, content-type, size, and all FormData-required information

So you could do it like:

const file = document.getElementById("#formInputFile").files[0];
const formData = new FormData();
formData.append('file', file]);
formData.append('contentType', 'audio/wav')'

chats[chat].conversation?.sendMessage(formData);