Json Transform

[cubancodepath]

There is a way to pass the peaks data from a json got from the server but firts this json need to be parse as it is comming wiht this type

WaveData {
  time: number,
  value: number,
}

where value is the peak value to create the array of number needed for peaks.js

[chrisn]

You can use the waveformData option to pass the data in, after fetching and transforming it:

function transform(waveform) {
  // Transform your data to the format Peaks.js needs here
  return data;
}

const response = await fetch(waveformUrl);
const waveform = await response.json();

const options = {
  zoomview: { container: ... },
  overview: { container: ... },
  mediaElement: document.getElementById('audio'),
  waveformData: {
    json: transform(waveform)
  },
  // Other options as needed
};

Peaks.init(options, (err, peaks) => {
  // etc
});