Refactoring the createNewTransaction method and the /transaction endpoint

In this section, let's refactor the createNewTransaction method by splitting it into two separate parts. One part will simply create a new transaction and then return that transaction, and the other part will push the new transaction into the pendingTransactions array. We'll do the latter part by creating a separate method for it. We also create a new transaction endpoint called /transaction/broadcast. This endpoint will allow us to broadcast transactions throughout the entire blockchain network, so that every node has the same data and so that the entire network is synchronized.

Modifications to the createNewTransaction method

Here, let&apos...