I had an amazing week 4 at polygon fellowship. Week 4 is devoted primarily to learning and exploring infrastructure and storage systems within web3 paradigms. The week 4 is jam-packed with the presentations from week 3 along with the sessions and assignments on infrastructure and storage.
Starting with the presentation each fellow presented/explained the protocol in the most concise and precise manner possible. In order to cover the core in the given timeframe, we had presentations over a variety of protocols which exist in the Defi space which further includes synthetix, poolTogether, Nexus Mutual and much more. Among all the protocols presented, the one that intrigued me the most was OpenGSN(gas station network) , a protocol which implements meta transactions. In a gist meta transactions are transactions which occur without the user having to pay gas fees instead the dapp builder pays it internally from the user side. which again provides a seamless and cost effective onboarding experience to new users.
In addition to presentations, we had weekly assignments to complete. The purpose of this weekly assignment is to cover as many storage solutions as possible and how they are implemented.
Assigned task
With the first task, it was pretty straight forward. We were basically asked to upload an image to IPFS (the way you do it doesn't matter) and submit the CID along with the image link with DNS label (quite straight forward haha). As for the next task, we were asked to build and deploy a subgraph for any protocol of our choice. I chose the Zorai protocol and deployed and published a subgraph for it which allows user to query information about tokens in the protocol along with their owners. Also, I worked on the social media dapp, which is basically a decentralized application where users can upload images and they are displayed publicly. I accomplished this task using pinata (which is again a decentralized storage solution) for storing images.
PS: Sneak peak of social media dapp i built (it’s quite dangerous to open this dapp at Night so be careful)
PS make sure to connect you wallet and remain in matic network to make most out of it.
App here: http://yeah-snap.vercel.app/ ⚡