PinABI

During the development of Smart Contracts using Hardhat I started to think on how to share the Contract's ABI with the backend and frontend part. Copy and paste seemed stupido. So, PinABI was born. With PinABI you are able to up- and download your smart contracts ABI to/from IPFS and pin with Pinata.

Create Api Key at Pinata

In order to use it, you have to create a Pinata account. Go to Pinata and create an account. Once this is done, you should create ideally two API keys - one for uploading an ABI and one for downloading. Your uploading API Key will require the following permissions:

* pinJSONToIPFS
* unpin
* pinList

Your downloading API Key will require the following permissions:

* pinList

Copy the api key and secret. You will have to export those values in your Terminal:

export PINATA_API_KEY="Key Value" 
export PINATA_API_SECRET="Secret Value"

and you are good to go :)

Use in Hardhat

PinABI is currently written for Hardhat to be used as a task.

In order to use it in Hardhat, go to your .config.jsfile and add it as a task:

const { uploadABIToPinata } = require("pin-abi");

task("upload", "Upload Smart Contracts ABI to Pinata")
  .addParam("name", "The name for the Pinata Pin")
  .setAction(async (taskArgs) => {
    const c = await uploadABIToPinata(taskArgs.name);
    console.log(c);
  });

Now you will be able to upload your Smart Contracts ABI using the following command:

npx hardhat upload --name [some pinning name]

Which Smart Contracts ABIs to upload?

In order to pick which ABIs you want to upload, create a .uploadABI.json file in your root folder of your Hardhat project:

{
    "files": [
        "Greeter.sol" # this represents the artifacts/contracts/Greeter.sol/ directory structure
    ]
}

Download ABIs

If you want to download your Smart Contracts ABIs in a different project, you can do the following:

const { downloadABIFromPinata } = require("pin-abi");

const pinName = "A name you used during the upload"
await downloadABIFromPinata(pinName);

Enjoy and I hope it is usefull :)