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About

This repository contains a few examples on how to use a searcher.

Setup

  1. Install protoc to compile protobufs
  1. Ensure that the rust toolchain is installed
$ curl https://sh.rustup.rs -sSf | sh
$ source $HOME/.cargo/env
  1. Clone the repo
$ git clone https://github.com/jito-labs/searcher-examples.git --recurse-submodules
$ cd searcher-examples

Infrastructure

You will need access to a few things before running these examples.

Local keypair

This is a locally generated wallet which you will use to sign transactions and pay for transaction fees and tips with.

Block Engine URLs

A list of our block engine URLs can be found here: https://jito-labs.gitbook.io/mev/systems/connecting/mainnet

Block Engine API Key

Please apply for block engine API keys here: https://web.miniextensions.com/WV3gZjFwqNqITsMufIEp

On-chain addresses

On-chain addresses for tip programs and tip accounts can be found here: https://jito-foundation.gitbook.io/mev/mev-payment-and-distribution/on-chain-addresses

Folders

backrun

Our most complex example, this shows how to "backrun" transactions.

Backrunning is when one inserts a transaction immediately behind a target transaction. Common forms of backrunning can be arbitrage and liquidations.

This example listens to transactions from the mempool and submits bundles containing a backrun transaction immediately behind a target transaction.

Due to the deprecation of mempool features, support for this functionality has been discontinued.

cli

This is a rust program that exercises functionality inside the searcher API so you can explore the functionality. It provides an intuitive CLI-based interface for connecting to the block engine and sending test bundles.

jito_protos

An example on how to build the protobufs that define the messages and services one can use to talk to our block engine.

searcher_client

An example on how to authenticate with the block engine as a searcher. All users in the block engine need to perform a challenge-response

Disclaimer

Use this at your own risk.

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  • Rust 97.2%
  • Dockerfile 2.3%
  • Shell 0.5%