Deploying locally & conclusion

Testing

With our recipe complete, let's test the Polywrapper on our local environment! First, let's set up our test environment with the following command in your terminal:

yarn test:env:up

tip

This command starts up a test environment using Ganache.

To close the test environment, simply run:

yarn test:env:down

Next, we will deploy our both our SimpleStorage.sol smart contract as well as our Polywrapper with the following command:

yarn deploy

tip

Behind the scenes, yarn deploy will run the following commands:

yarn deploy:contract && yarn deploy:web3api

Let's break down each of these commands, starting with yarn deploy:contract, which itself runs this command:

node ./scripts/deploy-contract.js

In the above command, we are executing a custom script, deploy-contract.js that deploys Simple Storage smart contract at a specific address on our test network. We'll be interacting with this deployed smart contract using our Polywrapper.

Next, our command will build and deploy the Polywrapper:

npx w3 build --ipfs http://localhost:5001 --test-ens simplestorage.eth

This will deploy the Polywrapper on an Ethereum Name Service (ENS) domain registered in the test environment that is set to resolve to a local IPFS node.

Now, we'll use the following command to check whether our Polywrapper and smart contract are working properly:

yarn test

This command uses our custom query CLI command, which will execute a series of Polywrap queries and mutations and return the result to you.

Conclusion

🎉 Congratulations! You've create a custom Polywrap!

Hopefully this article has given you a clear understanding of the Polywrap toolchain's primary features. If at any time in this process you get stuck or have questions, please don't hesitate to reach out on Discord.