100 Days of Solana - 1

#100daysofsolana #solana #100daysofcode #web3

Day 1: Generating a Solana Keypair & Funding with Devnet SOL

What I Learned

I learned that on Solana, my identity is represented by a keypair (public and private keys).

The public key acts as my wallet address, while the private key proves ownership and must be kept secret.

I realized this is similar to SSH keys in Web2, but here it’s used to interact with a decentralized blockchain.

What I Did

I created a new project folder with mkdir 100-days-of-solana && cd 100-days-of-solana.
I installed the dependency: npm install @solana/kit.
I wrote a script (create-wallet.mjs) that generated a new wallet using generateKeyPairSigner().
Each time I ran the script, I got a fresh wallet address.
I funded my wallet using the Solana Faucet on Devnet.
I verified the balance by connecting to the devnet RPC and checking my wallet.

Reflection

I discovered that the wallet only exists in memory unless I save it, which means I lost the private key each time I reran the script.

This taught me the importance of persistence and secure storage, which I’ll explore in the next challenge.

I also saw how decentralized identity works without relying on a central server.