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README.md

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Overview

go-ibft is a simple, straightforward, IBFT state machine implementation.

It doesn't contain fancy synchronization logic, or any kind of transaction execution layer. Instead, go-ibft is designed from the ground up to respect and adhere to the IBFT 2.0 specification document.

Inside this package, you’ll find that it solves the underlying liveness and persistence issues of the original IBFT specification, as well as that it contains a plethora of optimizations that make it faster and more lightweight. For a complete specification overview on the package, you can check out the official documentation.

As mentioned before, go-ibft implements basic IBFT 2.0 state machine logic, meaning it doesn’t have any kind of transaction execution or block building mechanics. That responsibility is left to the Backend implementation.

Installation

To get up and running with the go-ibft package, you can pull it into your project using:

go get github.com/sig-0/go-ibft

Currently, the minimum required go version is go 1.19.

Usage Examples

package main

import "github.com/sig-0/go-ibft"

// IBFTBackend is the structure that implements all required
// go-ibft Backend interfaces
type IBFTBackend struct {
	// ...
}

// IBFTLogger is the structure that implements all required
// go-ibft Logger interface
type IBFTLogger struct {
	// ...
}

// IBFTTransport is the structure that implements all required
// go-ibft Transport interface
type IBFTTransport struct {
	// ...
}

// ...

func main() {
	backend := NewIBFTBackned(...)
	logger := NewIBFTLogger(...)
	transport := NewIBFTTransport(...)

	ibft := NewIBFT(logger, backend, transport)

	blockHeight := uint64(1)
	ctx, cancelFn := context.WithCancel(context.Background())

	go func() {
		// Run the consensus sequence for the block height.
		// When the method returns, that means that
		// consensus was reached
		i := RunSequence(ctx, blockHeight)
	}

	// ...

	// Stop the sequence by cancelling the context
	cancelFn()
}