omarespejel / herdao-cairo

Workshop for the HER DAO Global community

First smart contracts with Cairo and HER DAO

Slides for the workshop

A workshop for building smart contracts with Cairo 1.0.

How it works

• No submodules, forks or other heavy machinery

Installing dependencies

Step 1: Install Cairo 1.0

If you are on an x86 Linux system and able to use the release binary, you can download Cairo here https://github.com/starkware-libs/cairo/releases.

For everyone, else, we recommend compiling Cairo from source like so:

# Install stable Rust
$ rustup override set stable && rustup update

# Clone the Cairo compiler in $HOME/Bin
$ cd ~/Bin && git clone [email protected]:starkware-libs/cairo.git && cd cairo

# Generate release binaries
$ cargo build --all --release

NOTE: Keeping Cairo up to date

Now that your Cairo compiler is in a cloned repository, all you will need to do is pull the latest changes and rebuild as follows:

$ cd ~/Bin/cairo && git fetch && git pull && cargo build --all --release

Step 2: Add Cairo 1.0 executables to your path

export PATH="$HOME/Bin/cairo/target/release:$PATH"

NOTE: If installing from a Linux binary, adapt the destination path accordingly.

This will make available several binaries. The one we use is called cairo-test.

Step 3: Install the Cairo package manager Scarb

Follow the installation guide in Scarb's Repository.

Step 4: Setup Language Server

VS Code Extension

• Disable previous Cairo 0.x extension
• Install the Cairo 1 extension for proper syntax highlighting and code navigation. Just follow the steps indicated here.

Cairo Language Server

From Step 1, the cairo-language-server binary should be built and executing this command will copy its path into your clipboard.

$ which cairo-language-server | pbcopy

Update the languageServerPath of the Cairo 1.0 extension by pasting the path.

License

MIT © Auditless Limited