Flareinsure - Rainfall Insurance on Flare with FDC (Flare Data Connector)

https://flareinsure.vercel.app/

Are you a farmer worried about a drought? Or a traveler who wants to hedge against a rainy day? Then Flarinsure is for you!

We use two smart contracts:

1. An Oracle contract that interfaces with the Flare Data Connector (FDC) to get rainfall data
2. A Policy contract that allows you to buy and redeem policies

See our demo video here: https://www.loom.com/share/929e2d0cf44e42c8b6b8045d39f000aa?sid=a84aad35-5f57-4dc9-897b-e297c943bbab

Team

Team members (from left to right):

• Phillip
• Moncef
• Simon

Frontend

Repo: https://github.com/Mushrimpy/blockinsure_flare. We used React, Next.js, and Scaffold-Eth to build the frontend. The frontend FDC button calls a server running with a docker container from this repo: https://github.com/ssocolow/docker-test.

Acknowledgements

Special thanks to Phillip and the rest of the Flare team for helping us get set up and guiding our build! Also thanks to Adam Spiers for the invaluable mentorship he provided.

Our Flare Experience

It was really fun and interesting working with a data blockchain for the first time and creatively exploring the possibilities associated with it. It was a little difficult getting started with the JQ processor, but after a while it became a lot smoother. Overall appreciated the robustness of the FDC with its flexiblity in taking in different data sources. We realized the large scope of opportunities associated with enshrined protocols.

Design

Final design:

Initial design:

Forked repo info - Flare Hardhat Starter Kit

IMPORTANT!! The supporting library uses Openzeppelin version 4.9.3, be careful to use the documentation and examples from that library version.

Getting started

If you are new to Hardhat please check the Hardhat getting started doc

1. Clone and install dependencies:

   git clone https://github.com/flare-foundation/flare-hardhat-starter.git
   cd flare-hardhat-starter

   and then run:

   yarn

   or

   npm install

2. Set up .env file

   mv .env.example .env

3. Change the PRIVATE_KEY in the .env file to yours

4. Compile the project

   yarn hardhat compile

   or

   npx hardhat compile

   This will compile all .sol files in your /contracts folder. It will also generate artifacts that will be needed for testing. Contracts Imports.sol import MockContracts and Flare related mocks, thus enabling mocking of the contracts from typescript.

5. Run Tests

   yarn hardhat test

   or

   npx hardhat test

6. Deploy

   Check the hardhat.config.ts file, where you define which networks you want to interact with. Flare mainnet & test network details are already added in that file.

   Make sure that you have added API Keys in the .env file

   npx hardhat run scripts/tryDeployment.ts --network coston2

Resources

• Flare Developer Hub
• Hardhat Docs