I couldn't attend StarknetCC, so instead I binge-watched all the talks. The one that got me excited the most is Shahar Papini introducing the vision for Cairo 1.0. The highlights are summarized in these two slides:Cairo 1.0 - The planCairo 1.0 - GoalsYeah, Cairo 1.0 is going to be infinitely more pleasant to use than Cairo 0.x and it's going to be out sooner than you can verify a STARK proof by hand. Listen to the whole talk to get all the details. Besides the improvements to the la...

I couldn't attend StarknetCC, so instead I binge-watched all the talks. The one that got me excited the most is Shahar Papini introducing the vision for Cairo 1.0. The highlights are summarized in these two slides:Cairo 1.0 - The planCairo 1.0 - GoalsYeah, Cairo 1.0 is going to be infinitely more pleasant to use than Cairo 0.x and it's going to be out sooner than you can verify a STARK proof by hand. Listen to the whole talk to get all the details. Besides the improvements to the la...

Did you know that with every Cairo release, there’s also a new version of the VS Code plugin? If you’ve set up your development environment before the latest version was released (0.9.1, roughly a week ago), chances are your Cairo plugin is outdated. It still works, but you’re missing out. It’s easy to fix though. Go to the cairo-lang Releases page, select the Assets dropdown and download the .vsix plugin. Or just click this link to do it directly 😇 Next, run code --install-extension cairo-0...

Did you know that with every Cairo release, there’s also a new version of the VS Code plugin? If you’ve set up your development environment before the latest version was released (0.9.1, roughly a week ago), chances are your Cairo plugin is outdated. It still works, but you’re missing out. It’s easy to fix though. Go to the cairo-lang Releases page, select the Assets dropdown and download the .vsix plugin. Or just click this link to do it directly 😇 Next, run code --install-extension cairo-0...

Cairo isn’t an object oriented language, yet we can still have mixins. Essentially, it’s possible to do the equivalent of Solidity’s is Ownable in Cairo. All that’s necessary is to explicitly import all the public functions you want to have in your contract. To illustrate, in the “mixin” file, we define an external function:// // ownable_external.cairo // from ownable.library import Ownable @external func transfer_ownership{syscall_ptr: felt*, pedersen_ptr: HashBuiltin*, range_check_ptr}( new...

Cairo isn’t an object oriented language, yet we can still have mixins. Essentially, it’s possible to do the equivalent of Solidity’s is Ownable in Cairo. All that’s necessary is to explicitly import all the public functions you want to have in your contract. To illustrate, in the “mixin” file, we define an external function:// // ownable_external.cairo // from ownable.library import Ownable @external func transfer_ownership{syscall_ptr: felt*, pedersen_ptr: HashBuiltin*, range_check_ptr}( new...

This blog is dedicated to the practice of writing smart contracts for StarkNet using Cairo lang. I will go beyond the basics and focus on more advanced topics around development, security, and testing of smart contracts, Cairo patterns and tips, StarkNet ecosystem tools and more. If you’re serious about building on StarkNet, you should definitely subscribe. Needless to say, there’s going to be a lot of code samples, all of which will be published in this repo on GitHub. You can also follow me...

This blog is dedicated to the practice of writing smart contracts for StarkNet using Cairo lang. I will go beyond the basics and focus on more advanced topics around development, security, and testing of smart contracts, Cairo patterns and tips, StarkNet ecosystem tools and more. If you’re serious about building on StarkNet, you should definitely subscribe. Needless to say, there’s going to be a lot of code samples, all of which will be published in this repo on GitHub. You can also follow me...

Cairo is a young language so best practices and conventions are still evolving. While building Aura, we created our own to streamline cooperation. You can now find them on GitHub. Keep in mind they are very opinionated, there’s no “right” way. This is what works for us. A huge thank you to bllu and tserg for their contributions ❤️ Other members of the community came up with their conventions. Here are those I know of:Only Dust StarkNet development guidelinesCairo Starknet contracts - Simple c...

Cairo is a young language so best practices and conventions are still evolving. While building Aura, we created our own to streamline cooperation. You can now find them on GitHub. Keep in mind they are very opinionated, there’s no “right” way. This is what works for us. A huge thank you to bllu and tserg for their contributions ❤️ Other members of the community came up with their conventions. Here are those I know of:Only Dust StarkNet development guidelinesCairo Starknet contracts - Simple c...

I have a strong opinion that every new programming language should ship with a standard code formatter. Golang does. Rust does. And yes, Cairo does as well 💪 The beauty of a code formatter is that it produces code that everyone hates equally. More importantly, it removes the all-so-tiresome comments about missing a space here or a newline there during code reviews. It was pretty easy to set up a CI action that runs cairo-format on your repo, but now it’s got even easier. I’ve just released c...

I have a strong opinion that every new programming language should ship with a standard code formatter. Golang does. Rust does. And yes, Cairo does as well 💪 The beauty of a code formatter is that it produces code that everyone hates equally. More importantly, it removes the all-so-tiresome comments about missing a space here or a newline there during code reviews. It was pretty easy to set up a CI action that runs cairo-format on your repo, but now it’s got even easier. I’ve just released c...