bitcoin-node-send-transaction.js

const send = async (receiver : string, amount : number, fee : number) : Promise<void> => {
    const signedTransaction = await signAndPack({
        sender: await keypair.publicKey,
        receiver,
        amount,
        fee
    }, await keypair.publicKey, await keypair.privateKey)

    await network.broadcast('ADD_TRANSACTION', signedTransaction);
};