Flexible Image Transport System

import magic
print(magic.from_file('galaxy.fits', mime=True)) # Outputs 'image/fits' or 'application/fits'

const FileType = require('file-type');
const type = await FileType.fromFile('galaxy.fits');
console.log(type?.mime); // Custom parsing required if file-type lacks FITS signatures

import "net/http"
// HTTP standard library may fail. Check bytes manually:
if bytes.HasPrefix(buf, []byte("SIMPLE  = ")) {
    fmt.Println("image/fits")
}

$mime = mime_content_type('galaxy.fits');
echo $mime; // Standard databases often map this to application/fits or application/octet-stream