post https://{network}.g.alchemy.com/v2/
Returns the receipt of a transaction by transaction hash on Polygon.
This can also be used to track the status of a transaction, since result will be null until the transaction is mined. However, unlike eth_getTransactionByHash which returns null for unknown transactions, and a non-null response with 3 null fields for a pending transaction, eth_getTransactionReceipt returns null for both pending and unknown transactions.
This call is also commonly used to get the contract address for a contract creation tx.
Note: the receipt is not available for pending transactions.