beem.transactionbuilder module¶
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class
beem.transactionbuilder.
TransactionBuilder
(tx={}, proposer=None, expiration=None, steem_instance=None)¶ Bases:
dict
This class simplifies the creation of transactions by adding operations and signers. To build your own transactions and sign them
from beem.transactionbuilder import TransactionBuilder from beembase.operations import Transfer tx = TransactionBuilder() tx.appendOps(Transfer(**{ "from": "test", "to": "test1", "amount": "1 STEEM", "memo": "" })) tx.appendSigner("test", "active") tx.sign() tx.broadcast()
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addSigningInformation
(account, permission)¶ This is a private method that adds side information to a unsigned/partial transaction in order to simplify later signing (e.g. for multisig or coldstorage)
FIXME: Does not work with owner keys!
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appendMissingSignatures
()¶ Store which accounts/keys are supposed to sign the transaction
This method is used for an offline-signer!
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appendOps
(ops, append_to=None)¶ Append op(s) to the transaction builder
Parameters: ops (list) – One or a list of operations
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appendSigner
(account, permission)¶ Try to obtain the wif key from the wallet by telling which account and permission is supposed to sign the transaction
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appendWif
(wif)¶ Add a wif that should be used for signing of the transaction.
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broadcast
()¶ Broadcast a transaction to the steem network
Parameters: tx (tx) – Signed transaction to broadcast
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clear
()¶ Clear the transaction builder and start from scratch
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constructTx
()¶ Construct the actual transaction and store it in the class’s dict store
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get_parent
()¶ TransactionBuilders don’t have parents, they are their own parent
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is_empty
()¶
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json
()¶ Show the transaction as plain json
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list_operations
()¶
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set_expiration
(p)¶
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sign
()¶ Sign a provided transaction witht he provided key(s)
Parameters: - tx (dict) – The transaction to be signed and returned
- wifs (string) – One or many wif keys to use for signing a transaction. If not present, the keys will be loaded from the wallet as defined in “missing_signatures” key of the transactions.
Verify the authority of the signed transaction
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