The Oracle contract serves as a decentralized data feed system for blockchain applications, particularly those running on the Planq network. This smart contract allows users to request and retrieve updated prices and random numbers, securely and reliably, without relying on external centralized sources.
How It Works Ownership: The contract is owned by the deployer, who has exclusive rights to update the prices. Price ID Generation: A unique identifier for each symbol's price is generated using a hash function, ensuring that each symbol's price is stored and retrieved securely. Price Updating and Retrieval: The owner calls updatePrice, passing a symbol and its price. The price is stored in the contract, and an event is emitted. Anyone can call getPrice to retrieve the latest price for a given symbol. Random Number Requests and Retrieval: Any user can request a random number, which triggers the generation and storage of a random number linked to a request ID. The random number can be retrieved using the request ID after it is available. Using the Oracle with a Consumer Contract Consumer Contract Overview The Consumer contract is designed to interact with the Oracle contract to fetch prices and random numbers. It demonstrates how to integrate Oracle functionalities into other contracts seamlessly.
Key Functionalities Request and Retrieve Price: The Consumer contract requests a price ID for a given symbol from the Oracle and then retrieves the price associated with that ID. Request and Retrieve Random Number: It shows how to request a random number, which is generated and stored by the Oracle