def write_default_blockchain() -> str:
"""Returns the string representation of the default Blockchain data."""
genesis_block = Block()
genesis_block.data = "This is the sickest Blockchain implementation ever."
genesis_block.timestamp = time.time()
genesis_block.previous_hash = ""
# Create a temporary chain which we can convert to JSON.
default_chain = Blockchain([])
default_chain.blocks.append(genesis_block)
save_chain(default_chain)
return default_chain.to_json()
def save_chain(chain: Blockchain, location: str = "chain_data.json") -> bool:
"""
Returns a bool indicating whether or not the data was saved.
Parameters:
chain -- the Blockchain to write to the file.
location -- the path to the file in which the data will be written.
"""
try:
with open(location, "w") as chain_data_h:
chain_data_h.write(chain.to_json())
return True
except:
return False