India is rapidly adopting blockchain technology, with a growing community of developers and entrepreneurs eager to solve real-world problems. I believe that by participating in the Base Hackathon, I can contribute to this innovation movement by building tools that make blockchain more accessible and efficient for the community. Gas fees remain a barrier to widespread adoption, and I want to create solutions that make blockchain more affordable, especially for small transactions which are common in a diverse and populous country like India.

I am focusing on the challenge of high gas fees, particularly when multiple transactions need to be executed. This is a major issue for users in India who want to interact with dApps, mint NFTs, or transfer assets, but find transaction costs prohibitive. The challenge is to make blockchain interactions more affordable and efficient without compromising on security.

Gas Saver helps users bundle several transactions into a single operation, reducing the overall gas cost. By allowing users to batch token transfers, contract calls, or other interactions into one transaction, we can optimize the use of gas and make blockchain interactions more affordable, particularly for frequent users. This tool can encourage more adoption of blockchain services in India by making them more cost-effective.

One of the main technical challenges was optimizing the gas usage for the batch transactions. While batching can reduce overall fees, each individual transaction still incurs some gas cost, so I had to ensure that the smart contract was efficient in its execution. Another challenge was integrating the frontend with Metamask for seamless user experience, particularly handling multiple signatures for different transactions in the bundle. I overcame these hurdles by conducting extensive testing using Hardhat and Ethers.js, and optimizing smart contract execution using Solidity best practices.