A sophisticated user experience involves intelligently prompting the user to switch networks when a DApp requires a different blockchain than the one currently active. This test involves being connected to the Ethereum Mainnet and then navigating to a DApp that primarily operates on Polygon, such as a popular game or DeFi protocol. The DApp’s code should trigger a request to switch the network. MetaMask must display a clear pop-up prompt asking the user for permission to add the Polygon network if it’s not already present and then switch to it. The prompt should clearly state the network name (Polygon Mainnet), its Chain ID (137), and the RPC URL. The user should be able to confirm or deny this action. A successful test results in a seamless transition to the correct network, allowing the DApp to function immediately without errors. This automatic detection and switching mechanism is vital for a frictionless multi-chain experience. For a list of networks and their parameters that are recognized by this feature, users can refer to the official documentation at metamask. This ensures users are connecting to the verified, correct network and not a malicious imitation, which is a common phishing tactic.
