tendermint

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Published: May 17, 2018 License: Apache-2.0

README

Tendermint

Byzantine-Fault Tolerant State Machine Replication. Or Blockchain for short.

version API Reference Go version Rocket.Chat license

Branch Tests Coverage
master CircleCI codecov
develop CircleCI codecov

NOTE: This is alpha software. Please contact us if you intend to run it in production.

Tendermint Core is Byzantine Fault Tolerant (BFT) middleware that takes a state transition machine - written in any programming language - and securely replicates it on many machines.

For more information, from introduction to installation and application development, Read The Docs.

For protocol details, see the specification.

Minimum requirements

Requirement Notes
Go version Go1.9 or higher

Install

To download pre-built binaries, see our downloads page.

To install from source, you should be able to:

go get -u github.com/tendermint/tendermint/cmd/tendermint

For more details (or if it fails), read the docs.

Resources

Tendermint Core

To use Tendermint, build apps on it, or develop it, Read The Docs. Additional information about some - and eventually all - of the sub-projects below, can be found at Read The Docs.

Sub-projects
  • ABCI, the Application Blockchain Interface
  • Go-Wire, a deterministic serialization library
  • Go-Crypto, an elliptic curve cryptography library
  • TmLibs, an assortment of Go libraries used internally
  • IAVL, Merkleized IAVL+ Tree implementation
Tools
Applications
More

Contributing

Yay open source! Please see our contributing guidelines.

Versioning

SemVer

Tendermint uses SemVer to determine when and how the version changes. According to SemVer, anything in the public API can change at any time before version 1.0.0

To provide some stability to Tendermint users in these 0.X.X days, the MINOR version is used to signal breaking changes across a subset of the total public API. This subset includes all interfaces exposed to other processes (cli, rpc, p2p, etc.), as well as parts of the following packages:

  • types
  • rpc/client
  • config
  • node

Exported objects in these packages that are not covered by the versioning scheme are explicitly marked by // UNSTABLE in their go doc comment and may change at any time. Functions, types, and values in any other package may also change at any time.

Upgrades

In an effort to avoid accumulating technical debt prior to 1.0.0, we do not guarantee that breaking changes (ie. bumps in the MINOR version) will work with existing tendermint blockchains. In these cases you will have to start a new blockchain, or write something custom to get the old data into the new chain.

However, any bump in the PATCH version should be compatible with existing histories (if not please open an issue).

Code of Conduct

Please read, understand and adhere to our code of conduct.

Directories

Path Synopsis
proto
Package test is a generated protocol buffer package.
Package test is a generated protocol buffer package.
cmd
docs
Package lite allows you to securely validate headers without a full node.
Package lite allows you to securely validate headers without a full node.
client
Package client defines a provider that uses a rpcclient to get information, which is used to get new headers and validators directly from a node.
Package client defines a provider that uses a rpcclient to get information, which is used to get new headers and validators directly from a node.
files
Package files defines a Provider that stores all data in the filesystem We assume the same validator hash may be reused by many different headers/Commits, and thus store it separately.
Package files defines a Provider that stores all data in the filesystem We assume the same validator hash may be reused by many different headers/Commits, and thus store it separately.
p2p
conn
Uses nacl's secret_box to encrypt a net.Conn.
Uses nacl's secret_box to encrypt a net.Conn.
pex
upnp
Taken from taipei-torrent.
Taken from taipei-torrent.
rpc
client/mock
package mock returns a Client implementation that accepts various (mock) implementations of the various methods.
package mock returns a Client implementation that accepts various (mock) implementations of the various methods.
core
# Introduction Tendermint supports the following RPC protocols: * URI over HTTP * JSONRPC over HTTP * JSONRPC over websockets Tendermint RPC is built using [our own RPC library](https://github.com/tendermint/tendermint/tree/master/rpc/lib).
# Introduction Tendermint supports the following RPC protocols: * URI over HTTP * JSONRPC over HTTP * JSONRPC over websockets Tendermint RPC is built using [our own RPC library](https://github.com/tendermint/tendermint/tree/master/rpc/lib).
grpc
Package core_grpc is a generated protocol buffer package.
Package core_grpc is a generated protocol buffer package.
lib
HTTP RPC server supporting calls via uri params, jsonrpc, and jsonrpc over websockets # Client Requests Suppose we want to expose the rpc function `HelloWorld(name string, num int)`.
HTTP RPC server supporting calls via uri params, jsonrpc, and jsonrpc over websockets # Client Requests Suppose we want to expose the rpc function `HelloWorld(name string, num int)`.
lib/server
Commons for HTTP handling
Commons for HTTP handling
test
app

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