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Write a smart contract in Solidity that can store key-value pairs and retrieve values using keys. The smart contract should have functions for setting key-value pairs and getting values by keys. Both key and values are integers.
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Set up a project to interact with the smart contract. Include necessary dependencies and configurations in the project.
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Deploys the smart contract to a local Ethereum test network (e.g., Ganache, Hardhat, Anvil).
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Use the ABI and contract address to create an instance of the smart contract.
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Design and implement the API with the following endpoints: POST /store: Stores a key-value pair in the smart contract. Request Body:
{ "key": "<key>", "value": "<value>" }Response: { “success”: true, “message”: “Key-value pair stored successfully.” } GET/retrieve?key=<key>:Retrieves the value corresponding to the provided key from the smart contract. Response: { "key": "", "value": "" } -
Provide documentation on how to set up and run the project
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(Optional) Write unit tests for the API endpoints and smart contract functions.
pip install -r requirements.txt
python app.py
localhost:8545/store
localhost:8545/retrieve
You can use hardhat test with npx hardhat test