- π Overview
- βοΈοΈ Build Guide
- π Quick Start
- π§° Troubleshooting
- π Documentation
- π€ Contributing
- β€οΈ Contributors
- π‘οΈ License
Welcome to the Leo programming language.
Leo provides a high-level language that abstracts low-level cryptographic concepts and makes it easy to integrate private applications into your stack. Leo compiles to circuits making zero-knowledge proofs practical.
The syntax of Leo is influenced by traditional programming languages like JavaScript, Scala, and Rust, with a strong emphasis on readability and ease-of-use. Leo offers developers with tools to sanity check circuits including unit tests, integration tests, and console functions.
Leo is one part of a greater ecosystem for building private applications on Aleo. The language is currently in an alpha stage and is subject to breaking changes.
We recommend installing Rust using rustup. You can install rustup
as follows:
-
macOS or Linux:
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
-
Windows (64-bit):
Download the Windows 64-bit executable and follow the on-screen instructions.
-
Windows (32-bit):
Download the Windows 32-bit executable and follow the on-screen instructions.
We recommend installing Leo by building from the source code as follows:
# Download the source code and initialize the submodules
git clone --recurse-submodules https://github.com/ProvableHQ/leo
cd leo
# Install 'leo'
$ cargo install --path .
Now to use leo, in your terminal, run:
leo
You can update Leo to the latest version using the following command:
leo update
Now to check the version of leo, in your terminal, run:
leo --version
Use the Leo CLI to create a new project
# create a new `hello-world` Leo project
leo new helloworld
cd helloworld
# build & setup & prove & verify
leo run main 0u32 1u32
The leo new
command creates a new Leo project with a given name.
The leo run
command will compile the program into Aleo instructions and run it.
Congratulations! You've just run your first Leo program.
If you are having trouble installing and using Leo, please check out our guide.
If the issue still persists, please open an issue.
Please see our guidelines in the developer documentation
View all Leo contributors here.