In this tutorial, we'll guide you through the process of deploying DeFi Protocol and verifying its source code on the BuildBear sandbox integrating with the Sourcify plugin.<h2>Why is Source Code Verification Important?</h2>Ensuring the security and reliability of smart contracts is crucial, especially in decentralized finance (DeFi) Protocols. Source code verification allows developers and users to verify that smart contracts behave as intended, avoiding risks of vulnerabilities and ensuring trust in the protocol's functionality.<h2>Introducing the Sourcify Verification Tool</h2><a href="https://sourcify.dev/">Sourcify</a> is a smart contract verification tool designed specifically for open-sourced and decentralized contracts on various EVM-based networks. Unlike some other verification services, Sourcify focuses on full matches with metadata hashes, ensuring a more thorough verification process. It enhances contract interactions by leveraging the ABI and NatSpec comments from the metadata file, making interactions more user-friendly.<h2>Deploying DeFi Protocol and Verifying using Sourcify Plugin on Foundry</h2>We will deploy Uniswap v3 contracts containing pool contracts that receive liquidity from users and make swaps within a price range. Foundry natively supports verification through Sourcify. We can use the <code>--verifier</code> and <code>--verifier-url</code> flags to enable Sourcify verification on Foundry.<h2>Setting Development Environment:</h2><ul><li>Foundry installation. Refer to this guide <a href="https://book.getfoundry.sh/getting-started/installation">here</a>.</li><li>Create a private sandbox. If you are new to BuildBear, refer to our comprehensive documentation to sign up and create your sandbox <a href="https://docs.buildbear.io/docs/intro">here</a>.</li></ul><figure class="image image_resized" style="width:50%;"><img src="https://strapi.buildbear.io/uploads/Screenshot_from_2024_04_29_15_13_07_6cf40075a6.png" alt="Screenshot from 2024-04-29 15-13-07.png" srcset="https://strapi.buildbear.io/uploads/thumbnail_Screenshot_from_2024_04_29_15_13_07_6cf40075a6.png 229w,https://strapi.buildbear.io/uploads/small_Screenshot_from_2024_04_29_15_13_07_6cf40075a6.png 500w,https://strapi.buildbear.io/uploads/medium_Screenshot_from_2024_04_29_15_13_07_6cf40075a6.png 750w,https://strapi.buildbear.io/uploads/large_Screenshot_from_2024_04_29_15_13_07_6cf40075a6.png 1000w," sizes="100vw"></figure><ul><li>Installing the Sourcify Plugin</li></ul>Install the Sourcify plugin for your sandbox to enable Sourcify Verification. Click on the Plugins button, select Sourcify from the All Plugins tab, and install it. Once installed, it will appear in the Installed Plugins tab.<figure class="image image_resized" style="width:50%;"><img src="https://strapi.buildbear.io/uploads/Screenshot_from_2024_04_30_12_38_29_b6da72df3a.png" alt="Screenshot from 2024-04-30 12-38-29.png" srcset="https://strapi.buildbear.io/uploads/thumbnail_Screenshot_from_2024_04_30_12_38_29_b6da72df3a.png 245w,https://strapi.buildbear.io/uploads/small_Screenshot_from_2024_04_30_12_38_29_b6da72df3a.png 500w,https://strapi.buildbear.io/uploads/medium_Screenshot_from_2024_04_30_12_38_29_b6da72df3a.png 750w," sizes="100vw"></figure>To get started with the project, fork and clone the uniswapv3 <a href="https://github.com/BuildBearLabs/Sourcify-verify">repo</a> using the following command:<pre><code class="language-plaintext">git clone https://github.com/BuildBearLabs/Sourcify-verify.git
 cd Foundry-Sourcify</code></pre>Install all necessary dependencies. <code>forge install</code> will add dependencies as a git submodule in your project.<pre><code class="language-plaintext">yarn install</code></pre>Before deploying your contract, ensure that your account has enough tokens to cover transaction costs. You can obtain tokens from the <a href="https://faucet.buildbear.io">faucet</a> in your sandbox dashboard.To compile and deploy your contract using the Forge command, you'll need to pass your RPC URL, private key, and Verifier URL. Your Verifier URL will follow this format: <code>https://rpc.buildbear/verify/sourcify/server/{sandboxId or customRPC}.</code><pre><code class="language-plaintext">forge create --rpc-url https://rpc.dev.buildbear.io/basic-aurora-6155ff32 --private-key 670e8f5f547a3bc4bd1869d473591ff10f6cf0d69a254257b61eca3f242ef188 script/DeployDevelopment.s.sol:DeployDevelopment --verify --verifier sourcify --verifier-url https://rpc.buildbear.io/verify/sourcify/server/sanam</code></pre>After successful execution, Uniswapv3 contracts will be deployed and verified using the Sourcify tool. Navigate to BuildBear Explorer to see the details.<figure class="image image_resized" style="width:50%;"><img src="https://strapi.buildbear.io/uploads/Screenshot_from_2024_04_30_15_04_52_cdb501cf73.png" alt="Screenshot from 2024-04-30 15-04-52.png" srcset="https://strapi.buildbear.io/uploads/thumbnail_Screenshot_from_2024_04_30_15_04_52_cdb501cf73.png 245w,https://strapi.buildbear.io/uploads/small_Screenshot_from_2024_04_30_15_04_52_cdb501cf73.png 500w,https://strapi.buildbear.io/uploads/medium_Screenshot_from_2024_04_30_15_04_52_cdb501cf73.png 750w,https://strapi.buildbear.io/uploads/large_Screenshot_from_2024_04_30_15_04_52_cdb501cf73.png 1000w," sizes="100vw"></figure><figure class="image image_resized" style="width:50%;"><img src="https://strapi.buildbear.io/uploads/Screenshot_from_2024_04_30_16_17_59_8f3c7e444d.png" alt="Screenshot from 2024-04-30 16-17-59.png" srcset="https://strapi.buildbear.io/uploads/thumbnail_Screenshot_from_2024_04_30_16_17_59_8f3c7e444d.png 222w,https://strapi.buildbear.io/uploads/small_Screenshot_from_2024_04_30_16_17_59_8f3c7e444d.png 500w,https://strapi.buildbear.io/uploads/medium_Screenshot_from_2024_04_30_16_17_59_8f3c7e444d.png 750w,https://strapi.buildbear.io/uploads/large_Screenshot_from_2024_04_30_16_17_59_8f3c7e444d.png 1000w," sizes="100vw"></figure><h2>Deploying UniswapV3 and Verifying using Sourcify On Hardhat</h2>To get started, use the same <a href="https://github.com/BuildBearLabs/Sourcify-verify">repo</a> and change the directory to the Hardhat project containing uniswapv3 contracts using the following command and install all required dependencies.<pre><code class="language-plaintext">cd Hardhat-Sourcify
 npm install</code></pre>To verify code using Sourcify in a Hardhat project, use the <a href="https://www.npmjs.com/package/@nomicfoundation/hardhat-verify">Hardhat Verify</a> plugin. Please note that Sourcify is not supported in Hardhat Ignition at the moment, as it defaults to Etherscan.To Install the plugin:<pre><code class="language-plaintext">npm install --save-dev @nomicfoundation/hardhat-verify</code></pre>Then, add the following statement to your <code>hardhat.config.js</code> file:<pre><code class="language-plaintext">require("@nomicfoundation/hardhat-verify");</code></pre>This plugin enables you to verify the source code of your Solidity contracts, providing integration with Sourcify and other compatible explorers.Next, configure the network details in your <code>hardhat.config.js</code> file for deploying the contract. Obtain the RPC URL from your BuildBear sandbox dashboard and make sure that the Sourcify plugin is installed.Finally, enable Sourcify with an API URL following the same format but include your {sandboxId or customRPC}. Optionally, disable Etherscan to ensure that only Sourcify is utilized for contract verification, preventing any potential confusion or conflicts. Your configuration file should look like the following:<figure class="image image_resized" style="width:50%;"><img src="https://strapi.buildbear.io/uploads/carbon_12_739287e091.png" alt="carbon (12).png" srcset="https://strapi.buildbear.io/uploads/thumbnail_carbon_12_739287e091.png 218w,https://strapi.buildbear.io/uploads/small_carbon_12_739287e091.png 500w,https://strapi.buildbear.io/uploads/medium_carbon_12_739287e091.png 750w,https://strapi.buildbear.io/uploads/large_carbon_12_739287e091.png 1000w," sizes="100vw"></figure>Now, deploy and verify the protocol by running;<pre><code class="language-plaintext"> npx hardhat run scripts/deploy-Uniswap.js --network buildbear</code></pre>OR Use the below command to verify on Sourcify for deployed contracts by passing the contract address,<pre><code class="language-plaintext">npx hardhat verify --network buildbear &lt;contract address&gt;</code></pre><figure class="image image_resized" style="width:50%;"><img src="https://strapi.buildbear.io/uploads/Screenshot_from_2024_04_30_18_57_15_7cea49d800.png" alt="Screenshot from 2024-04-30 18-57-15.png" srcset="https://strapi.buildbear.io/uploads/thumbnail_Screenshot_from_2024_04_30_18_57_15_7cea49d800.png 245w,https://strapi.buildbear.io/uploads/small_Screenshot_from_2024_04_30_18_57_15_7cea49d800.png 500w,https://strapi.buildbear.io/uploads/medium_Screenshot_from_2024_04_30_18_57_15_7cea49d800.png 750w,https://strapi.buildbear.io/uploads/large_Screenshot_from_2024_04_30_18_57_15_7cea49d800.png 1000w," sizes="100vw"></figure>Navigate to BuildBear Explorer to see the contract details,<figure class="image image_resized" style="width:50%;"><img src="https://strapi.buildbear.io/uploads/Screenshot_from_2024_04_30_18_59_38_05c0b7d3e9.png" alt="Screenshot from 2024-04-30 18-59-38.png" srcset="https://strapi.buildbear.io/uploads/thumbnail_Screenshot_from_2024_04_30_18_59_38_05c0b7d3e9.png 224w,https://strapi.buildbear.io/uploads/small_Screenshot_from_2024_04_30_18_59_38_05c0b7d3e9.png 500w,https://strapi.buildbear.io/uploads/medium_Screenshot_from_2024_04_30_18_59_38_05c0b7d3e9.png 750w,https://strapi.buildbear.io/uploads/large_Screenshot_from_2024_04_30_18_59_38_05c0b7d3e9.png 1000w," sizes="100vw"></figure>Congratulations on completing this tutorial on deploying and verifying Uniswap v3 protocol with Sourcify on BuildBear sandboxes!<h2>About BuilBear:</h2><a href="https://www.buildbear.io/">BuildBear</a>&nbsp;is a platform tailored for DApp development and testing. Developers gain the freedom to construct a personalized Private Testnet sandbox across a variety of blockchain networks. The liberty to mint unlimited Native and ERC20 tokens, coupled with rapid transaction times on BuildBear (under 3 seconds!), enhances the DApp development lifecycle manifold. The platform comes equipped with tools and plugins designed for real-time testing and debugging, ensuring developers can keep tabs on intricate blockchain transactions with unparalleled ease.Connect with us on&nbsp;<a href="https://twitter.com/_BuildBear">Twitter</a>&nbsp;|&nbsp;<a href="https://www.linkedin.com/company/build-bear/">LinkedIn</a>&nbsp;|&nbsp;<a href="https://t.me/Web3_dApp_Developers">Telegram</a>&nbsp;|&nbsp;<a href="https://github.com/BuildBearLabs">GitHub</a>&nbsp;

image (3).png

In this tutorial, we'll guide you through the process of deploying DeFi Protocol and verifying its source code on the BuildBear sandbox integrating with the Sourcify plugin.

How to Deploy and Verify Using Sourcify On BuildBear Sandbox with Hardhat and Foundry

Let’s get started then, Shall we?

Let’s get started then, Shall we?

Test DApps at Scale.