9min

Tutorial: Order Trigger Bot

Introduction
Order Trigger Bots (Trigger Bots) are responsible for marking orders that satisfy the trigger condition, including: 
Trigger Market Orders - Stop Market and Take Profit 
Trigger Limit Orders - Stop Limit and Take Profit Limit
Trigger Bots receive a small compensation for each successfully marked order.
See ﻿﻿﻿﻿Keepers & Decentralised Orderbook for a technical explanation of how the decentralised orderbook (DLOB) and matching incentives work.
Trigger Bots are similar to Matching Bots in that they: 
also maintain a local copy of the Decentralised Limit Orderbook (DLOB); 
do not require the operator to manage collateral; and 
receive a small reward for performing their duties.
Getting Started
The reference implementation of a Trigger Bot is available here.
Follow the instructions at ﻿﻿Keeper Bots to set the required environment variables and make sure a ClearingHouseUser is initialised.
Start the Trigger Bot:
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Technical Explanation
1. Get nodes from the DLOB that are ready to be triggered
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The DLOB implementation includes a method for getting orders ready to be triggered:
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2. Call trigger_order on ClearingHouse 
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