Progress Report:

As expected, this was the most exciting week with the maximum lines of code written.

• The first priority was to fix the “approve error”. As I discovered that the USDC(PoS) token has a proxy implementation, I read the underlying contract, only to find that “approve” function well defined in it, so I was not able to understand why it was not working.

• After exhausting about 6-7 hunches, I tried appending the api of this underlying contract to the USDC contract’s ABI, and the function worked! I understood that on the frontend, as the ABI did not have approve defined, as the USDC token’s abi only had delegate functions, and thus, it was throwing a does not exist error.

• After fixing the above issue, I wrote the code to make the approve and NFT minting transactions gasless, and ensured the the latter runs upon the completion of the former.

• I then proceeded to use Gelato’s status api to fetch the status of ongoing gasless transactions, and display real time updates.

• As the whole flow for the POC was now working, what was left was making UX improvements, and deploying the project, both of which did not have much roadblocks.

• The only issue remaining was that the onramp frontend was still only available in the US. I made the demo and tested things using a VPN for the time being. A future aim would be to ask for India access, or switch to a different onramp.

Overall, I had a lot of learnings from this building experience, and am super excited for demo day!

Progress Report:

As expected, this was the most exciting week with the maximum lines of code written.

• The first priority was to fix the “approve error”. As I discovered that the USDC(PoS) token has a proxy implementation, I read the underlying contract, only to find that “approve” function well defined in it, so I was not able to understand why it was not working.

• After exhausting about 6-7 hunches, I tried appending the api of this underlying contract to the USDC contract’s ABI, and the function worked! I understood that on the frontend, as the ABI did not have approve defined, as the USDC token’s abi only had delegate functions, and thus, it was throwing a does not exist error.

• After fixing the above issue, I wrote the code to make the approve and NFT minting transactions gasless, and ensured the the latter runs upon the completion of the former.

• I then proceeded to use Gelato’s status api to fetch the status of ongoing gasless transactions, and display real time updates.

• As the whole flow for the POC was now working, what was left was making UX improvements, and deploying the project, both of which did not have much roadblocks.

• The only issue remaining was that the onramp frontend was still only available in the US. I made the demo and tested things using a VPN for the time being. A future aim would be to ask for India access, or switch to a different onramp.

Overall, I had a lot of learnings from this building experience, and am super excited for demo day!