---
title: "Discussion on \"Bitget books50 goes incremental on 1 December: keeping a local order book in Node.js\" | Hashnode"
description: "Discussion on \"Bitget books50 goes incremental on 1 December: keeping a local order book in Node.js\". What changes on the 50-level depth channel, and a small TypeScript-friendly handler that works before and after the switch"
url: "https://hashnode.com/posts/bitget-books50-goes-incremental-on-1-december-keeping-a-local-order-book-in-node-js/6af301d64ef8af572d2c6ed2"
---

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# [Bitget books50 goes incremental on 1 December: keeping a local order book in Node.js](https://siebly.hashnode.dev/bitget-books50-goes-incremental-on-1-december-keeping-a-local-order-book-in-node-js?utm_source=hashnode&utm_medium=feed)

What changes on the 50-level depth channel, and a small TypeScript-friendly handler that works before and after the switch

1d ago · 4 min read · siebly.hashnode.dev  
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