This module is a copy from original node-bptf-listing by Nicklason, with improved Backpack.tf inventory refresh and support buy orders for targeted items (Crates, Unusualifier, Strangifier, Fabricator, Killstreak Kit and Chemistry Set).
@tf2autobot/bptf-listings uses @tf2autobot/tf2-schema, you need to install it and set it up to use bptf-listings.
npm install @tf2autobot/tf2-schema
Install it from npm:
npm install @tf2autobot/bptf-listings
See the examples