🧊Chainlink Products

Utilization of Chainlink Services

Using Chainlink Functions to make off-chain API call

Objective: To fetch data about businesses using the ChatGPT API whenever a user triggers an action, such as querying a business’s ethical practices, values, or missions.

Implementation Steps:

1. Smart Contract Setup:

• Write a smart contract function that users can call when they want to query business information. This function will initiate a Chainlink request.

2. Chainlink Functions Configuration:

• In the smart contract, set up a Chainlink Functions call. This involves setting the API endpoint URL (the ChatGPT API endpoint), the data path to retrieve from the response, and any necessary headers or parameters (e.g., API keys, query strings).

• Define a `fulfillment` function in the smart contract that will handle the data returned by the Chainlink node. This function will be responsible for processing and storing the fetched data in the blockchain, making it available for user queries or business profile updates.

3. Data Handling:

• Once the API data is retrieved and passed back to the smart contract via the fulfillment function, store this data in a structured format within the smart contract. This could involve updating or creating a new business profile with attributes like values, mission statements, and other relevant information.

Using Chainlink VRF for Tokenized Incentives

Objective: To ensure fairness and transparency in how tokenized incentives are distributed to businesses that actively address user concerns. The Chainlink VRF will be used to select businesses randomly or based on certain criteria, ensuring that the process is tamper-proof and verifiable.

Implementation Steps:

1. VRF Integration:

• Implement a function in your smart contract to request randomness from Chainlink VRF when determining which businesses receive tokenized incentives. This might be triggered after a certain number of reviews are submitted, or as part of a periodic evaluation process.

2. Handling the VRF Response:

• Chainlink VRF will return a verifiable random number to your smart contract. This number will be used to select businesses from a list of eligible candidates—those that have responded positively to user concerns.

• Define the selection criteria and logic within the smart contract. For example, the random number could be used to index into an array of businesses that meet the eligibility criteria.

3. Token Distribution:

• Once businesses are selected based on the randomness provided by Chainlink VRF, execute the logic to distribute tokens to these businesses. This could involve minting new tokens or transferring existing tokens from a community pool to the business's wallet.

• Record the transaction in the smart contract for transparency and auditability.

Good to know: Chainlink is the most powerful middleware in web3. A very important tool in any blockchain developer's toolbox, Chainlink adds secure pathways for our data to flow from on to off chain and back again - as well as adding essential randomness to our tokenization process.

Special Thank You to the engineers and developers @ Chainlink for these powerful Products & Services