This example shows how to send additional POST params with uploading.
<!-- data from input -->
<input type="hidden" id="my-input-1" value="my-input-value-1">
<input type="hidden" id="my-input-2" value="my-input-value-2">
<!-- element -->
<textarea id="entry">...</textarea>
<!-- call -->
<script>
let app = Redactor('#entry', {
image: {
upload: '/image-uploader-path/',
data: {
id: 10,
elements: '#my-input-1, #my-input-2'
}
}
});
</script>