Developer Documents Day 2 of Solana Learning: Wallets and Balance Checks

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A developer sharing a 100-day Solana learning journey documented their second session, focusing on programmatically generating a Solana wallet and querying its balance via the devnet RPC. Using the @solana/kit library, they wrote a script called wallet-balance.mjs to connect to Solana's devnet and retrieve balance information. A key insight from the session was that without saving the generated keypair to a file, each script run creates a new wallet with zero balance, highlighting the need for persistent storage. The exercise also underscored the importance of securely storing private keys when building on Solana. The developer noted that devnet SOL carries no real value, allowing safe experimentation, and plans to cover keypair persistence in the next challenge.

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