@hapi/ammo

Range Parsing

This feature allows you to parse the 'Range' HTTP header and determine the byte ranges requested by the client. The `Ammo.header` function takes the range header and the total length of the resource, returning an array of ranges.

const Ammo = require('@hapi/ammo');

const rangeHeader = 'bytes=0-4,9-15';
const length = 20;
const ranges = Ammo.header(rangeHeader, length);

console.log(ranges);

Range Validation

This feature validates the parsed ranges to ensure they are within the bounds of the resource length. If the ranges are valid, it returns an array of ranges; otherwise, it returns null.

const Ammo = require('@hapi/ammo');

const rangeHeader = 'bytes=0-4,9-15';
const length = 20;
const ranges = Ammo.header(rangeHeader, length);

if (ranges) {
  console.log('Valid ranges:', ranges);
} else {
  console.log('Invalid range header');
}