:mod:`viz.transactionbuilder`
=============================

.. py:module:: viz.transactionbuilder


Module Contents
---------------

.. py:class:: ProposalBuilder(author, title, memo, proposal_expiration=None, proposal_review=None, parent=None, *args, **kwargs)

   Bases: :class:`graphenecommon.transactionbuilder.ProposalBuilder`

   .. autoapi-inheritance-diagram:: viz.transactionbuilder.ProposalBuilder
      :parts: 1
:private-bases:
   Proposal Builder allows us to construct an independent Proposal that may later be added to an instance of
   TransactionBuilder.

   :param str proposer: Account name of the proposing user
   :param int proposal_expiration: Number seconds until the proposal is
       supposed to expire
   :param int proposal_review: Number of seconds for review of the
       proposal
   :param .transactionbuilder.TransactionBuilder: Specify
       your own instance of transaction builder (optional)
   :param instance blockchain_instance: Blockchain instance

   .. method:: define_classes(self)



   .. method:: get_raw(self)


      Returns an instance of base "Operations" for further processing.


   .. method:: broadcast(self)




.. py:class:: TransactionBuilder

   Bases: :class:`graphenecommon.transactionbuilder.TransactionBuilder`

   .. autoapi-inheritance-diagram:: viz.transactionbuilder.TransactionBuilder
      :parts: 1
:private-bases:
   This class simplifies the creation of transactions by adding operations and signers.

   .. attribute:: permission_types
      :annotation: = ['master', 'active', 'regular']

      

   .. method:: define_classes(self)



   .. method:: add_required_fees(self, ops, **kwargs)


      Override this method because steem-like chains doesn't have transaction feed.


   .. method:: appendSigner(self, accounts, permission)


      Try to obtain the wif key from the wallet by telling which account and permission is supposed to sign the
      transaction.


   .. method:: get_block_params(self)


      Auxiliary method to obtain ``ref_block_num`` and ``ref_block_prefix``.

      Requires a websocket connection to a witness node!