docs(examples): add createMint runnable example#408
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HealthyBuilder merged 1 commit intoApr 23, 2026
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Adds rpc/examples/createMint demonstrating the idiomatic way to create
a new SPL Token mint — the two-instruction composition readers have
historically had to reconstruct themselves:
1. system.CreateAccount allocates 82 bytes funded to the rent-exempt
minimum, owned by token.ProgramID.
2. token.InitializeMint2 writes the mint state (decimals, mint
authority, freeze authority). Mint2 is preferred over Mint because
Token v1.1+ dropped the Rent sysvar the original required.
The example runs end-to-end on devnet: generate payer + mint keypair,
airdrop, fetch rent via GetMinimumBalanceForRentExemption, build both
instructions, sign with both keypairs (the mint keypair authorizes
creation at its own pubkey), and SendTransaction. Inline comments
point to the Token-2022 variant and note where extensions would slot
in before InitializeMint2.
Closes solana-foundation#277
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Problem
this is not obvious how to create mints using the SDK
Solution
add runnable example of this functionality
closes #277