Type error while calling sendAndConfirmTransaction in solana/web3.js-2.0/basics/transferSol.ts

[Mano-08]

Summary

I am facing a TypeScript error when passing the signedTransaction to sendAndConfirmTransaction at solana/web3.js-2.0/basics/transferSol.ts#L91

Error description :

Argument of type 'FullySignedTransaction & TransactionWithinSizeLimit & Readonly<{ messageBytes: TransactionMessageBytes; signatures: SignaturesMap; }> & TransactionWithLifetime' is not assignable to parameter of type 'FullySignedTransaction & TransactionWithinSizeLimit & Readonly<{ messageBytes: TransactionMessageBytes; signatures: SignaturesMap; }> & Omit<...> & { ...; }'.
  Type 'FullySignedTransaction & TransactionWithinSizeLimit & Readonly<{ messageBytes: TransactionMessageBytes; signatures: SignaturesMap; }> & TransactionWithLifetime' is not assignable to type '{ lifetimeConstraint: Omit<TransactionBlockhashLifetime, "blockhash">; }'.
    Types of property 'lifetimeConstraint' are incompatible.
      Type 'TransactionBlockhashLifetime | TransactionDurableNonceLifetime' is not assignable to type 'Omit<TransactionBlockhashLifetime, "blockhash">'.
        Property 'lastValidBlockHeight' is missing in type 'TransactionDurableNonceLifetime' but required in type 'Omit<TransactionBlockhashLifetime, "blockhash">'.ts(2345)
lifetime.d.ts(25, 5): 'lastValidBlockHeight' is declared here.

Looks likesendAndConfirmTransaction expects a transaction that is using a recent blockhash, but the transaction we’re passing in could be either a recent blockhash transaction or a durable nonce transaction.

Note

• Recent blockhash transactions have lastValidBlockHeight
• But durable nonce transactions do not

Proposed Solution

We require an assertion before calling sendAndConfirmTransaction, to make sure that the signed transaction has the lastValidBlockHeight

assertIsTransactionWithBlockhashLifetime(signedTransaction);