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celestia-app

Go Reference mdBook Specs GitHub Release Go Report Card GitPOAP Badge

celestia-app is a blockchain application built using parts of the Cosmos stack. celestia-app uses

Diagram

                ^  +-------------------------------+  ^
                |  |                               |  |
                |  |  State-machine = Application  |  |
                |  |                               |  |   celestia-app (built with Cosmos SDK)
                |  |            ^      +           |  |
                |  +----------- | ABCI | ----------+  v
Celestia        |  |            +      v           |  ^
validator or    |  |                               |  |
full consensus  |  |           Consensus           |  |
node            |  |                               |  |
                |  +-------------------------------+  |   celestia-core (fork of CometBFT)
                |  |                               |  |
                |  |           Networking          |  |
                |  |                               |  |
                v  +-------------------------------+  v

Install

Source

  1. Install Go 1.21.1

  2. Clone this repo

  3. Install the celestia-app CLI

    make install

Prebuilt binary

If you'd rather not install from source, you can download a prebuilt binary from the releases page.

  1. Navigate to the latest release on https://github.com/celestiaorg/celestia-app/releases.

  2. Download the binary for your platform (e.g. celestia-app_Linux_x86_64.tar.gz) from the Assets section. Tip: if you're not sure what platform you're on, you can run uname -a and look for the operating system (e.g. Linux, Darwin) and architecture (e.g. x86_64, arm64).

  3. Extract the archive

    tar -xvf celestia-app_Linux_x86_64.tar.gz

  4. Verify the extracted binary works

    ./celestia-appd --help

  5. [Optional] verify the prebuilt binary checksum. Download checksums.txt and then verify the checksum:

    sha256sum --ignore-missing --check checksums.txt

    You should see output like this:

    celestia-app_Linux_x86_64.tar.gz: OK

Ledger Support

Ledger is not supported on Windows and OpenBSD.

Usage

# Print help
celestia-appd --help

Environment variables

Variable Explanation Default value Required
CELESTIA_HOME Home directory for the application User home dir. Ref. Optional

Create your own single node devnet

# Start a single node devnet using the pre-installed celestia app
./scripts/single-node.sh

# Build and start a single node devnet
./scripts/build-run-single-node.sh

# Post data to the local devnet
celestia-appd tx blob PayForBlobs [hexNamespace] [hexBlob] [flags]

Note: please note that the ./scripts/ commands above, created a random tmp directory and keeps all data/configs there.

See https://docs.celestia.org/category/celestia-app for more information

Contributing

This repo attempts to conform to conventional commits so PR titles should ideally start with fix:, feat:, build:, chore:, ci:, docs:, style:, refactor:, perf:, or test: because this helps with semantic versioning and changelog generation. It is especially important to include an ! (e.g. feat!:) if the PR includes a breaking change.

Tools

  1. Install golangci-lint 1.55.2
  2. Install markdownlint
  3. Install hadolint
  4. Install yamllint
  5. Install markdown-link-check
  6. Install goreleaser

Helpful Commands

# Build a new celestia-app binary and output to build/celestia-appd
make build

# Run tests
make test

# Format code with linters (this assumes golangci-lint and markdownlint are installed)
make fmt

# Regenerate Protobuf files (this assumes Docker is running)
make proto-gen

# Build binaries with goreleaser
make goreleaser-build

Docs

Package-specific READMEs aim to explain implementation details for developers that are contributing to these packages. The specs aim to explain the protocol as a whole for developers building on top of Celestia.

Audits

Date Auditor Version Report
2023/9/15 Informal Systems v1.0.0-rc6 informal-systems.pdf
2023/10/17 Binary Builders v1.0.0-rc10 binary-builders.pdf

Careers

We are hiring Go engineers! Join us in building the future of blockchain scaling and interoperability. Apply here.