The article explains how decentralized applications (dApps) communicate with Ethereum-like blockchains via JSON-RPC interfaces, utilizing RPC URLs that point to node endpoints. Services like Infura and GetBlock provide these URLs for on-chain data retrieval and transaction initiation. Each blockchain network has a unique chain ID to prevent transaction replay across networks, safeguarding the integrity of transactions. The article also emphasizes the importance of using reliable public RPCs or personal nodes for dApps to maintain consistent and current access to blockchain information.
When a dApp interacts with an Ethereum-like blockchain, it utilizes a JSON-RPC interface through a network URL pointing to a node's endpoint.
Public endpoints, such as GetBlock or the Cloudflare Ethereum Gateway, allow dApps to invoke Ethereum without hosting their own node, ensuring updated access to the blockchain.
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